Analysis of MVR Evaporation and Crystallization Technology for Desulfurization Wastewater
Published Time:
2021-08-30
Source:
Author:
Analysis of MVR Evaporation Crystallization Technology for Desulfurization Wastewater
Power plant desulfurization wastewater has high salt content and large water quality fluctuations, requiring high demands on the water treatment system. Using MVR evaporation crystallization technology to treat desulfurization wastewater achieves zero discharge and resource utilization. The following is a brief introduction to the application of MVR evaporation crystallization technology in the treatment of desulfurization wastewater.
I. Advanced Treatment Methods for Desulfurization Wastewater
Natural evaporation ponds, membrane desalination, electrodialysis, evaporation crystallization, etc.
Currently, the common treatment method for desulfurization wastewater is evaporation crystallization, which separates salts in solid form to achieve near-zero discharge.
II. Introduction to MVR Evaporation Crystallization Technology for Desulfurization Wastewater
The desulfurization wastewater MVR evaporation crystallization system is divided into a concentration system, a crystallization system, and a drying system. Most of the desulfurization wastewater is reused after evaporation and condensation.
III. Principle of MVR Evaporation Crystallization Technology for Desulfurization Wastewater
MVR is the most energy-efficient among all evaporation crystallization processes. Its basic principle is to compress the secondary steam that would normally be condensed using cooling water in the evaporator, increasing its pressure and saturation temperature, and then sending it to the evaporator heater as a heat source to heat the material liquid. Because the latent heat of the secondary steam is fully utilized, energy saving is achieved.
IV. Desulfurization Wastewater Treatment Process Using MVR Evaporation Crystallization
After pretreatment and membrane concentration, the concentrated water enters the evaporation crystallization system. After treatment by the evaporation crystallization system, the product and crystalline salt are obtained. The total dissolved solids (TDS) content of the produced water is less than or equal to 100 mg/L, and the purity of the crystalline salt is greater than or equal to 97.5%.
V. Advantages of the MVR Evaporation Crystallization System
(1) Targeted design, capable of adapting to complex influent water quality and a wide range of water quality changes, ensuring the continuous and stable operation of the MVR system.
(2) High thermal efficiency, energy saving, low specific energy consumption, the energy consumption of evaporating 1t of clear water is about 1/6～1/5 of that of traditional evaporators (energy consumption varies with different materials), and the operating cost is greatly reduced.
(3) Intelligent, the various operating parameters of the compressor can be monitored through software, and analysis reports can be generated.
(4) The compressor uses frequency conversion control, and can automatically perform frequency conversion control according to the on-site conditions during actual use.
(5) The compressor system has multi-directional automatic protection functions, and automatically performs protection when changes occur in temperature, pressure, etc., ensuring the normal use of the compressor.
(6) Since the heater is also a condenser for secondary steam, no additional condenser is needed, and there is no circulating cooling water consumption.
(7) Small footprint, fewer operators, and fewer supporting public works projects.
Recommended Dynamics
Address: 3rd Floor, Building C15, Phase II, Dongyi International Media Industrial Park, Chaoyang District, Beijing
Email:mkt@horwater.com
Email：
Tel：
Tel：
图片alt标题设置： Horwater Environment (Beijing) Co., Ltd.
表单验证提示文本： Content cannot be empty!
循环体没有内容时： Sorry,no matching items were found.
CSS / JS 文件放置地