Zero Liquid Discharge

Industrial Wastewater Evaporation Crystallization

Leading the Industry with Proven ZLD Technologies

Myande’s Zero Liquid Discharge solutions are engineered to address the complex needs of industrial wastewater management. Our ZLD systems integrate cutting-edge evaporation and crystallization technologies, designed to recover valuable resources and minimize environmental impact. By offering a comprehensive range of services—from initial design and manufacturing to installation, commissioning, and after-sales support—Myande ensures seamless and sustainable operations for our clients.

Innovative Technology: Our ZLD systems utilize advanced Multiple-Effect Evaporation and Forced Circulation Crystallizers, ensuring maximum efficiency and minimal environmental footprint.

Comprehensive Lifecycle Support: We offer end-to-end services, ensuring your ZLD system operates at peak performance throughout its lifespan.

Global Expertise: Trusted by industry leaders in over 80 countries, Myande’s solutions are proven across a wide range of applications, including industrial wastewater treatment, resource recovery, and more.

Industrial Wastewater Treatment Evaporation

Partner with Myande for Sustainable Growth

Choosing Myande as your ZLD partner means investing in a solution that not only meets regulatory requirements but also drives operational excellence. Our advanced systems are designed to recover up to 95% of water for reuse, while converting the remaining waste into dry solids that can be safely disposed of or repurposed. Imagine a future where your operations are more sustainable, your costs are lower, and your environmental impact is minimal—all backed by Myande’s industry-leading expertise.

Solution Tailored to Your Needs

General Layout Plan

With a land prepared, the next thing you should consider is planning the general layout, which is a crucial foundation of a sustainable and cost-effective manufacturing.
Turn to us for help and we will present you the design for your plant by considering water, steam, electricity supply and etc.

Process Design

Combining our engineering expertise, industry know-how and practical skills with your knowledge, we provide the optimized and customized process design for your plant.

3D Plant Design

On the basis of plant layout design, combined with real situation, we can design a three-dimensional model of the entire plant. All the equipment, piping and instruments, any detail can be shown in the model, not only allowing you to have an intuitive understanding of the plant, but also providing overall information support for plant construction, equipment installation and future expansion.

Automatic Control System

We offer economical and most effective process automation solutions for the entire production line. Our RES automatic control system is developed based on PLC/DCS system.

Data Integration

Data integration in industrial evaporation and crystallization systems enables real-time monitoring and automated control, coordinated operation, data analysis, advanced process control, remote diagnostics, and integration with enterprise systems, leading to optimized performance and operational excellence.

Equipment Manufacturing

We owns in-house manufacture base of more than 130,000㎡ integrating R&D, production, project management which represents advanced engineering capability in the industry.

Installation and Commissioning

After finishing the installation of all machines, we offer on-site commissioning service to ensure compatible functioning.
Every move of the machine needs strong technical support from our experienced engineers. The only principle is that you can start manufacturing right after the commissioning.

Training and After-sales Service

Myande 360° Service Portfolio covers all your needs throughout the life cycle of your project. By minimizing your total cost of ownership, we help you stay ahead of the competition.

About Myande

Myande Group is a globally leading supplier of complete plants, equipment, and services for Oils & Fats, Starch & Derivatives, Fermentation, Evaporation & Crystallization, Material Storage and Handling and Smart Factory industries.

Myande Group currently has 1,200+ employees including 500 technical staff and 700 manufacturing workers. More than 1,000 complete plants have been supplied under Myande’s name in around 80 countries since 2003.

World-leading manufacturing base

In-house manufacture base of more than 130,000㎡ that integrates R&D, production, and project management, representing world-class engineering capability in the industry.

Myande Evaporator under Fabrication

Intelligent Tube Sheet Robot Welding System

By harnessing the power of the Intelligent Tube Sheet Robot Welding System, we have revolutionized the way evaporators are crafted, taking efficiency and precision to unprecedented heights.

At the core of our remarkable evaporator lies the Intelligent Tube Sheet Robot Welding System, a state-of-the-art technology that has redefined the welding process. By automating this intricate task, we eliminate the margin for human error, ensuring flawless connections between tubes and sheet metal. The result is an impeccable product that exceeds industry standards.

No Compromise on Quality

We are highly committed to Quality Assurance.

Our facilities and processes adhere to the highest local and international industry standards and certifications and are audited regularly for compliance.

With a global quality management system, we ensure that our customers all over the world receive high-quality, reliable products and solutions. We are well aware that our equipment have to function safely and efficiently for decades.

To effectively carry on the spirit of artisanship, improve the overall quality of front-line employees, we hold the “Workmanship Skills Competition" every year.

Certificates & Patents

At Myande​, innovation is the result of the total process of developing an idea into a product or a new way of working which adds value to the business.
Over 400 registered patents and utility models demonstrate the company's innovation potential.

Our Global Presence

We focus on supplying one-stop engineering service covering general layout plan, process design, R&D, equipment manufacturing, automatic control system, data integration, installation, supervision, commissioning, training and etc.
Our custom solutions come from a deep understanding of your needs, and we have the capability to complete each project from the design of the initial concept to manufacturing, installation, commissioning and delivery.

Lifecycle Service

Technical expertise and innovative products form the basis of your success. But we offer you even more: our extensive range of services gives you optimum support for your requirements and objectives in the long term.

Myande News & Insights

Why is a Zero Liquid Discharge Plant Necessary for Industries?

Imagine a world where industrial plants are forced to shut down due to water shortages, where rivers and lakes are polluted beyond repair, and where companies face crippling fines for environmental violations. These scenarios are not far-fetched; they are rapidly becoming the reality for many industries around the globe. Water scarcity, stringent environmental regulations, and the increasing cost of water and waste management are pushing industries to rethink their water use strategies. This is where zero liquid discharge (ZLD) technology comes into play—a transformative approach that not only addresses these pressing issues but also provides a pathway to sustainable industrial practices. Zero liquid discharge (ZLD) plants are becoming increasingly necessary for industries due to several key reasons: 1. Environmental Protection: ZLD systems treat wastewater by recycling, recovering, and reusing it for industrial purposes, minimizing or eliminating the discharge of liquid waste into the environment. This helps protect water resources and ecosystems from pollution. By ensuring that no liquid waste is released, ZLD systems help industries significantly reduce their environmental footprint. 2. Water Scarcity Mitigation: As freshwater resources become scarce, ZLD allows industries to recover and reuse nearly 98% of the water that goes through their industrial systems. This reduces their demand and impact on local water supplies, helping to mitigate water resource insecurity. In regions where water scarcity is a critical issue, ZLD systems provide a sustainable solution for managing water resources efficiently. 3. Regulatory Compliance: Many countries are implementing stricter environmental regulations that mandate the use of ZLD systems for certain industries. For example, India has required a wide range of industries, including fertilizer, textile, sugar, paper, and power plants, to switch to ZLD treatment processes. Compliance with these regulations is crucial to avoid hefty fines and ensure the continued operation of industrial facilities. 4. Resource Recovery: ZLD systems can help industries recover valuable materials from wastewater, such as lithium, potassium sulfate, gypsum, caustic soda, and sodium sulfate. This can potentially create additional revenue streams. By converting waste into valuable byproducts, ZLD systems not only enhance sustainability but also improve economic viability. 5. Cost Reduction: While ZLD systems require significant upfront investment, they can lead to long-term cost savings by reducing water intake, minimizing waste disposal costs, and potentially recovering valuable byproducts. The initial investment in ZLD technology is offset by the savings and additional revenue generated over time. 6. Sustainability and Corporate Responsibility: Adopting ZLD technology demonstrates a commitment to sustainable practices and environmental stewardship, which can enhance a company's reputation and meet growing expectations for corporate responsibility. Companies that invest in ZLD systems are seen as leaders in environmental sustainability, which can be a significant competitive advantage. 7. Operational Risk Mitigation: For industries in water-stressed areas or those with water-intensive processes, ZLD can help insulate operations from escalating source water costs and potential water shortages. By ensuring a reliable supply of recycled water, ZLD systems provide operational stability and resilience. 8. Addressing Complex Waste Streams: ZLD is particularly effective for managing challenging wastewaters produced by industries such as power generation, chemical manufacturing, and electroplating, which may contain high levels of contaminants or toxic materials. ZLD systems are designed to handle these complex waste streams, ensuring that all contaminants are effectively removed and converted into solid waste. While ZLD systems can be complex and require significant initial investment, they are increasingly seen as a necessary solution for industries facing water scarcity, stringent regulations, and growing environmental concerns. The global market for ZLD systems is expected to grow significantly in the coming years, reflecting the rising importance of this technology in industrial water management. Understanding the necessity of zero liquid discharge (ZLD) systems is just the beginning. To fully appreciate the impact and implementation of ZLD technology, it is essential to explore its applications in specific industries. From the fertilizer sector to pharmaceutical manufacturing, ZLD systems play a critical role in managing wastewater, recovering valuable resources, and ensuring regulatory compliance. Let's delve deeper into how ZLD technology is applied in these industries and the technological advancements driving its adoption. What is Zero Liquid Discharge in the Fertilizer Industry? Zero liquid discharge (ZLD) in the fertilizer industry refers to a wastewater treatment process that eliminates all liquid waste from fertilizer production, recovering and reusing water while converting contaminants into solid waste. This approach is particularly important for the fertilizer industry due to the nature of its effluents and increasing environmental regulations. 1. Contaminant Removal: Fertilizer industry effluents typically contain pollutants such as ammonia, ammonium salts, nitrates, urea, chromates, phosphates, heavy metals, and suspended solids. ZLD systems are designed to treat and remove these contaminants effectively. Advanced treatment technologies ensure that all harmful substances are removed, protecting water bodies from pollution. 2. Water Recovery: ZLD processes aim to recover and reuse nearly all the water from the industrial wastewater, reducing the demand on freshwater resources and minimizing environmental impact. By recycling water within the production process, fertilizer plants can significantly reduce their freshwater consumption. 3. Resource Recovery: ZLD systems in the fertilizer industry can help recover valuable materials from wastewater, such as silica, which can be used in applications like chromatography and as reinforcing material. This not only reduces waste but also generates additional revenue from recovered materials. 4. Compliance with Regulations: Many countries are implementing stricter environmental regulations that require fertilizer industries to adopt ZLD or near-ZLD processes to minimize their environmental impact. Compliance with these regulations is essential for the continued operation and growth of fertilizer plants. 5. Treatment Technologies: ZLD systems in the fertilizer industry typically involve a combination of technologies such as clarification, chemical precipitation, filtration, reverse osmosis, and evaporation/crystallization. These technologies work together to ensure that all contaminants are removed and water is effectively recycled. 6. Solid Waste Management: The end result of a ZLD process is a dry, solid cake containing concentrated contaminants, which requires proper disposal or potential further treatment for resource recovery. Effective management of solid waste is crucial to the success of ZLD systems. 7. Cost Considerations: While ZLD systems require significant initial investment, they can lead to long-term benefits such as reduced water intake costs, minimized waste disposal expenses, and potential recovery of valuable byproducts. The economic benefits of ZLD systems often outweigh the initial investment. Implementing ZLD in the fertilizer industry is driven by the necessity to address environmental concerns, comply with regulations, and manage water resources more sustainably. As water scarcity and environmental regulations become more pressing, ZLD systems are likely to become increasingly important for the fertilizer industry's long-term sustainability and operational viability. What is the Technology of ZLD? Zero Liquid Discharge (ZLD) is an advanced wastewater treatment process that aims to eliminate all liquid waste from industrial operations. The key technologies and components of a typical ZLD system include: 1. Pretreatment: This initial stage may involve processes like clarification, chemical precipitation, and filtration to remove suspended solids and other contaminants that could interfere with downstream processes. Effective pretreatment is essential for the smooth functioning of subsequent stages. 2. Membrane Filtration: Technologies such as ultrafiltration (UF) and reverse osmosis (RO) are used to remove dissolved solids and concentrate the wastewater. Reverse osmosis is particularly effective at separating water from dissolved salts and other contaminants. Membrane filtration ensures that the water recovered is of high purity and suitable for reuse. 3. Evaporation: Thermal evaporators, often falling film evaporators or brine concentrators, are used to further concentrate the wastewater by evaporating water and leaving behind a more concentrated brine solution. This step is crucial for reducing the volume of liquid waste. 4. Crystallization: Crystallizers are employed to process the concentrated brine from the evaporators, forming solid crystals from the remaining dissolved solids. This solid waste can then be managed appropriately, ensuring that no liquid waste is discharged. 5. Solid-Liquid Separation: Technologies like filter presses or centrifuges are used to separate the crystallized solids from any remaining liquid. Efficient solid-liquid separation ensures that the final solid waste is dry and easy to handle. 6. Condensate Recovery: The water vapor produced during evaporation and crystallization is condensed and recovered as high-purity distillate, which can be reused in industrial processes. Condensate recovery maximizes water reuse and minimizes the need for freshwater intake. 7. Sludge Dewatering: Filter presses or other dewatering equipment are used to remove moisture from the solid waste produced, creating a dry cake suitable for disposal or potential reuse. Effective sludge dewatering reduces the volume of waste that needs to be managed. 8. Atmospheric Evaporation: In some cases, atmospheric evaporators may be used as a final polishing step or for handling smaller volumes of wastewater. This step ensures that even the smallest quantities of wastewater are treated effectively. The specific combination and configuration of these technologies can vary depending on the characteristics of the wastewater being treated and the industry's requirements. ZLD systems are designed to recover and reuse nearly all the water from industrial wastewater while converting contaminants into solid waste, thus eliminating liquid discharge and conserving water resources. Conclusion: In conclusion, the necessity of Zero Liquid Discharge (ZLD) plants for industries cannot be overstated. ZLD systems address some of the most pressing environmental and operational challenges faced by modern industries, from environmental protection and water scarcity mitigation to regulatory compliance and resource recovery. By leveraging advanced technologies, ZLD systems transform wastewater management into a sustainable and economically viable practice, supporting industries in their journey towards sustainability and responsible resource use.

Pesticide Waste Water Evaporation & Crystallization

Myande signed a contract with Dezhou Luba Fine Chemical Co., Ltd, by which Myande will supply Luba with a three-effect evaporation & crystallization facility to process all wastewater generated from Luba’s pesticide production plant to yield 3,000 ton per annum industrial refined salt as a value-adding by-product.   This evaporation & crystallization facility to be supplied by Myande will enable Luba to extract salt content from the wastewater and achieve the zero-effluent effect by recycling all condensation water from the evaporation and crystallization process.   This project will represent another major breakthrough of Myande’s wastewater treatment technology particularly developed for treating wastewater generated in pesticide production plants.  

29T/H High-Salt Wastewater MVR Evaporation

In Binhai Economic Development Zone, Weifang City, stands a high-salt wastewater evaporation facility. This includes two 29t/h MVR evaporation systems supplied by Myande Group for Shandong Yuyuan Group Co., Ltd about one year ago. Due to satisfactory performance of the two evaporation systems and successful cooperation experience between the two companies, on December 16, 2016, Yuyuan Group and Myande signed another contract by which Myande will undertake Phase III of Yuyuan’s MVR wastewater evaporation Project.   Yuyuan Group is one of China’s leading producers of H acid, an important chemical product widely used as textile dyeing material. With its continuous expansion, the amount of high-salt wastewater generated from the production of H acid and intermediate product T acid is increasing. The evaporation and crystallization system featuring simple and stable operation supplied by Myande solves this problem for Yuyuan Group. It is expected that Phase III project when completed will enable Yuyuan Group to further reduce the negative impact of its production process on the environment.  

Multiple-effect Evaporators for High Volumes of Wastewater

The challenge of managing large volumes of industrial wastewater is a significant concern for many industries today. The environmental impact, regulatory compliance, and operational costs associated with wastewater treatment are daunting. However, with the right technology, these challenges can be effectively mitigated. One such technology is the multiple effect evaporator, designed to efficiently handle and treat high volumes of wastewater. But how exactly do these systems work, and why are they considered a superior solution? Design and Operation:Multiple effect evaporators consist of a series of interconnected evaporator vessels, known as "effects." Each effect operates at progressively lower pressures and temperatures, utilizing the vapor generated from the previous effect to drive evaporation in the next stage. This cascade design maximizes energy efficiency, as the heat transferred to evaporate the effluent is recycled in subsequent stages. This significantly reduces the overall energy requirements compared to single-effect systems, making them a cost-effective and environmentally friendly solution. Capacity:These systems are ideal for handling high wastewater volumes. The ability to add effects allows for increased capacity without significantly raising energy consumption. This scalability is a critical advantage for industries facing fluctuating or growing wastewater volumes. Energy Efficiency:Multiple effect evaporators are highly energy efficient due to their design. The heat from steam is used multiple times in a series of evaporator vessels, significantly reducing overall energy consumption. The vapor produced in one stage is used to heat the liquid in the next stage, maximizing heat utilization and lowering operational costs. Applications:Multiple effect evaporators are suitable for various industries generating high volumes of wastewater, including chemical and pharmaceutical manufacturing, food and beverage production, textile and dyeing operations, automotive industries, desalination plants, and leachate treatment from waste management facilities. Their versatility and efficiency make them a preferred choice for industries aiming to reduce their environmental footprint while maintaining operational efficiency. Considerations:When selecting a multiple effect evaporator for high-volume wastewater treatment, several factors must be considered, including wastewater characteristics (composition, viscosity, solid content), required capacity and scale of operation, energy consumption and efficiency needs, maintenance requirements and operational costs, and environmental impact and compliance requirements. Proper evaluation of these factors ensures that the selected system meets the specific needs of the operation, providing both economic and environmental benefits. In summary, multiple effect evaporators offer an efficient, scalable solution for treating high volumes of industrial wastewater across various sectors. They provide significant economic and environmental benefits, making them an essential technology for modern industrial wastewater management. What is the purpose of using a multiple effect evaporator? The primary purpose of using a multiple effect evaporator is to efficiently evaporate water or other solvents from a liquid solution while minimizing energy consumption. Here are the key reasons for using this technology: Energy Efficiency:Multiple effect evaporators use the heat from steam multiple times in a series of evaporator vessels, significantly reducing overall energy consumption compared to single-effect systems. The vapor produced in one stage is used to heat the liquid in the next stage, maximizing heat utilization. Cost-Effectiveness:By reusing heat and reducing energy input, multiple effect evaporators lower operating costs for industrial processes that require the concentration of liquids. This cost-saving aspect is crucial for industries looking to optimize their processes and reduce operational expenses. High Concentration Capability:These systems can achieve higher concentration ratios of the final product compared to single-effect evaporators, making them ideal for applications that require concentrated solutions. This high concentration capability enhances the efficiency of subsequent processing steps, improving overall productivity. Versatility:Multiple effect evaporators can handle a wide range of liquids and are used in various industries, including chemical, pharmaceutical, food and beverage, and wastewater treatment. Their adaptability to different industrial applications makes them a versatile choice for many processes. Space Efficiency:Despite having multiple stages, these evaporators often have a compact design, making them suitable for plants with limited space. This space efficiency allows industries to implement advanced evaporation technology without the need for extensive modifications to their existing facilities. Effective Treatment of Industrial Wastewater:In effluent treatment applications, multiple effect evaporators can significantly reduce parameters like Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), and Total Suspended Solids (TSS). This effective treatment capability helps industries meet stringent environmental regulations and improve their sustainability practices. In summary, the main purpose of using a multiple effect evaporator is to achieve highly efficient and cost-effective evaporation or concentration of liquids in various industrial processes, while minimizing energy consumption and environmental impact. This efficiency and versatility make them an essential technology for modern industrial operations. Which type of evaporator is best? There is no single "best" type of evaporator, as the optimal choice depends on the specific application, product characteristics, and operational requirements. However, I can highlight some key factors to consider when selecting an evaporator: Product Characteristics:The nature of the product being processed, including its viscosity, heat sensitivity, fouling tendency, and solids content, greatly influences the choice of evaporator. Understanding these characteristics is essential to selecting an evaporator that can handle the product effectively without compromising quality or efficiency. Capacity Requirements:The volume of product to be processed affects the selection, with some types better suited for large-scale operations and others for smaller batches. Industries must assess their current and future capacity needs to ensure they choose an evaporator that can meet their demands without unnecessary overcapacity. Energy Efficiency:Multiple-effect evaporators and those with vapor recompression are generally more energy-efficient for large-scale operations. This energy efficiency translates into lower operational costs and reduced environmental impact, making them an attractive choice for many industries. Heat Transfer Efficiency:Different designs offer varying levels of heat transfer efficiency, which impacts processing time and energy consumption. Evaluating the heat transfer efficiency of different evaporators helps industries select a system that optimizes their processing operations. Space Constraints:Some evaporators are more compact than others, which may be a consideration in facilities with limited space. Space-efficient designs allow industries to implement advanced evaporation technology without the need for extensive modifications to their existing facilities. Cost:Both initial capital costs and ongoing operational expenses should be considered. While some evaporators may have a higher upfront cost, their long-term operational savings and efficiency improvements may justify the investment. Industries must perform a thorough cost-benefit analysis to determine the most economically viable option for their needs. In conclusion, the "best" evaporator depends on your specific needs. For large-scale industrial processes, falling film, multi-effect, or MVR (Mechanical Vapor Recompression) evaporators are often preferred for their efficiency. It's crucial to carefully evaluate your product characteristics, process requirements, and operational constraints to select the most appropriate evaporator type. By considering these factors, industries can ensure they choose an evaporator that meets their operational needs, provides cost-effective performance, and supports their sustainability goals. Summary: In the ever-evolving landscape of industrial processes, managing high volumes of wastewater efficiently and sustainably is paramount. Multiple effect evaporators offer a robust solution, combining energy efficiency, scalability, and versatility to address the diverse needs of various industries. By reusing heat across multiple stages, these systems significantly reduce energy consumption and operational costs, making them a cost-effective choice for large-scale operations. Their ability to handle a wide range of liquids and achieve high concentration ratios further enhances their utility across different sectors. When selecting an evaporator, industries must consider product characteristics, capacity requirements, energy efficiency, heat transfer efficiency, space constraints, and cost. By carefully evaluating these factors, they can choose an evaporator that meets their specific needs, ensuring optimal performance and sustainability. Multiple effect evaporators are more than just a technological solution; they represent a commitment to environmental stewardship and operational excellence. As industries continue to seek ways to minimize their environmental impact and improve efficiency, multiple effect evaporators will play an increasingly vital role in achieving these goals.

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