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Treatment of Phenol Wastewater
Paracetamol Recovery

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   Sunresin Park,No.135, jinye Road, Xi'an        Hitech Industrial Development Zone,              Shaanxi-710076, China
  E-mail: seplite@sunresin.com
  Tel: +86-29-89182091

Drainage Water Recycling

Ion Exchange Technology for Water Reuse

Drainage water recycling is a process of converting drainage into recycling water.

The chemical industry produces sewage at various stages, removes the salts and pollutants, and makes the effluent reach the circulating water standard and reuse it, so that zero discharge of wastewater can be achieved. Domestic sewage can be used to irrigate farmland or toilet flushing after being treated by treated water recycling technology.

The electroplating industry is a large amount of water, and the total amount of heavy metal ions in water is high. In recent years, the Chinese government has made specific regulations on the reuse of water in the electroplating industry.

Specifically, it is necessary to stipulate the COD, metal ion content, salt concentration, pH, and color of the water. In the conventional water reuse process, the ammonia nitrogen COD in the water needs to be biochemically treated, and the dissolved salt generally needs to be removed by membrane filtration.

There are some drawbacks to this process:
1. Some refractory organic matter remains, COD is high, ammonia nitrogen exceeds the standard, and pollutes the RO membrane .
2. Although the salt is reduced, in some industries, it is still unable to meet the recycling standards.

Many cases adopt ion exchange and membrane separation in combination. Ion exchange and adsorption technology, as a finishing technology, can be used to reduce COD, color value, etc., and is used before membrane treatment. If there is a serious conductivity control, it can be processed by mixed bed to meet the requirements of recycling water.

Our Advantages
  • Multiple resins
  • Supporting Equipment & system
  • Successful EPC project cases
Typical Application
  • Decolorazation
  • Reduce COD
  • Remove ammonia nitrogen
  • Control conductivity
  • Removal heavy metals
  • Deionization

Category List

SEPLITE LX Series                             Decolorazation and Reduce COD, remove ammonia before RO
SEPLITE MB Series                            Reduce conductivity to recycling-water standard
SEPLITE LSC Series                          Heavy metal removal

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Latest News

01 2020-12
A Better Choice for Tungsten and Molybdenum Separation

Sunresin has set up special topics and established a special research team based on customers’ needs to conduct research and analysis on the element composition and existing technology of tungsten leaching solution, and successfully developed sepcial resin Seplite® LSC680 for tungsten and molybdenum separation as well as the matching process.

27 2020-11
Acetone Purification and Cycling (Methylamine removal), solvent in the production of PPS (polyphenylene sulfide)

The ion exchange resin (IER) method is very excellent and efficient for acetone purification. Acetone will pass cation exchange resins first and then the anion exchange resins, more than 95% methylamine will be removed.

24 2020-11
Sunresin awarded as Asia's Best Under A Billion by Forbes 

On November 23, 2020,Forbes announced Asia’s Best Under A Billion 2019 list. Sunresin was honored to be selected. The promulgation ceremony originally scheduled to be held in Bangkok, Thailand, was carried out online due to continuous spreading pandemic.

Here to Provide Complete Separation and Purification Solutions
Sunresin Park,No.135, jinye Road, Xi’an Hi-tech Industrial Development Zone, Shaanxi-710076, China
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