CSRE MD
Membrane Distillation
CSRE MD is driven by a vapor partial pressure difference triggered by temperature difference across hydrophobic membrane which is a barrier for liquid phase, only allowing vapor phase to pass through membrane's pores.
CSRE MD, a revolutionary process to desalinate high salinity of waste water, is constructed by anti-corrosive plastic materials, operated at low OpEx and an alternative technology to current metalic evaporators.
Strong chemical tolerance
Strong resistance to acid, alkali and oxidants Concentrate acids & alkalis, e.g., sulfuric acid, hydrochloric acid, sodium hydroxide, and oxidants, e.g., ferric chloride, high chlorine reagents, without neutralization, even till crystallizes.
Low-temperature & multi-effect design
CSRE MD adopts mult-effect, heat-recirculating and modular design. CSRE MD is driven by low-temperature heat sources.
CSRE MD effectively utilizes low-grade waste heats and energy consumption can be lower than 2-5kWh/ t of water.
MD work flow diagram
Utilizing residue/waste heat in plant, according to different components in waste water, MD concentrates waste water to a concentration close to saturated state for maximizing volume reduction and reducing total volume of subsequent crystallization, leading to low OpEx of whole process.
MVR-MD
With the development of ZLD technology, MVR is attracting more and more concerns due to very less steam consumption and lower OpEx than multi-effect evaporator, and suitable for applications in the areas without steam/surplus heat or with high steam price. The same, MD can be integrated with mechanical vapor compressor to promote working efficiency. Thus, CSRE developed MVR-MD in house, which is a combination process of CSRE MD and MVR.
The temperature of flash steam generated by MD is increased by compression to promote efficiency of recycling and heating. Thus, the MVR-MD system can utilize generated flash steam by self to keep system running and just needs less steam for make-up after starting up, which substantially decrease energy consumption. Furthermore, the MVR-MD system is operated at negative pressure with high safety coefficient and suitable for clients in short of steam/surplus heat or having low price of electricity, e.g., coal-fired power plants. CSRE adopts non-metallic materials to construct system with modular and internal-channel design for promoting chemical-resistance and flexibility of system.
MD based ammonia extractor
With the developmenet of membrane technology, ammonia extraction from waste water through membrane processes absorbs more and more attention. CSRE is developing MD based ammonia extractor, MD extractor, for ammonia extraction at low temprature; the equipment adopts PTFE hydrophobic membrane as a barrier to isolate water containing ammonia from absorbent solution; volatile ammonia passes through membrane under ammonia partial pressure at the both side of membrane and is absorbed by absorbent solution.
The equipment with modular and internal-channel design is constructed by welding plastic materials, strong tolerance to chemicals and operated at low temperature and pressure with low OpEx and high safety. Feed and absorbent can be in-situ heated and cooled, respectively, which greatly promotes ammonia extraction efficiency.
Presales enquiry
Mr SHI：+86 13811087068
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Contacts：
Beijing China Science Resources and Environmental Technology Co. Ltd.
Contact person：Mr SHI
Mobile: +86 138 1108 7068
Email：contact@csretech.com.cn
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