How to clean Jewelry processing wastewater?

       NanaMem® micro-integrated equipment has been successfully applied in the sewage treatment of a jewelry factory with flat ceramic membrane group as the core component in Zhejiang. The jewelry factory produces sewage during the polishing, polishing, and cleaning of the jewelry. The sewage contains emulsifiers, oil, and various heavy metals.

      It is reported that there are about 3,000 jewelry processing enterprises distributed in Zhejiang. These jewelry companies secretly discharge sewage directly, which has a great impact on the local groundwater and ecological environment, and has also attracted great attention from the local government. The government issued a severe supervision policy. A few companies have been detained because of stealing sewage, and jewelry processing enterprises are basically facing production suspension.

        NanaMem® has developed a set of micro-integrated reclaimed water recycling equipment for cleaning jewelry processing wastewater . This device uses NanaMem® flat ceramic membrane unit as the core technology and is equipped with a pre-oxidation and reduction system, namely redox + flat ceramic membrane unit. PC-MBR The micro-integrated equipment performs jewelry sewage treatment, and the treatment result reaches the water reuse standard for jewelry processing and cleaning, which not only solves environmental pollution, but also saves water.

       Flat ceramic filtration membrane is a high-tech patented product and produced by NanaMem® and applied in the water treatment industry. Its unique ceramic material characteristics have an irreplaceable position in the waste water treatment industry. NanaMem® Flat ceramic filtration membrane  is a new generation of inorganic ceramic membranes, which uses Al2O3 , ZrO2, TiO2, SiO2, SiC and other inorganic materials, using the Chinese millennium ceramic traditional sintering process and modern production equipment. It is mainly based on the theory of "physical sieving". According to a certain range of membrane pore size, the permeability of different molecules with different diameters has different permeability. The pressure difference between the two sides of the membrane is the driving force, and the membrane is the filter medium. Under the action, when the material liquid flows over the surface of the membrane, only water, inorganic salts, and small molecular substances are allowed to pass through the membrane, and large-molecular substances in the water are prevented from passing through, such as suspended matter, glue, and microorganisms. NanaMem® breaks the tradition and discards tubular ceramic membranes. 

       Flat ceramic membranes fully exploits the advantages of inorganic ceramic membranes and displays magical membrane strength. The flat ceramic membrane has the incomparable advantages of the tubular ceramic membrane and the traditional organic MBR membrane. The tubular ceramic membrane has a small flux and strong use limitations. The traditional organic MBR membrane is made of  cellulose acetate, aromatic polyamide, and polyetherorganic composite materials such as sulfone, fluoropolymer, etc., which are not resistant to acids and alkalis, extremely corrosive, poor impact resistance, and low flux Flat ceramic membranes are not only equipped with organic membranes and tubes Ceramic membrane’s  advantages, but also has a large flux, acid and alkali resistance, corrosion resistance, strong impact resistance, and can be backwashed automatically. The service life of the diaphragm can reach 10 years, so it deserves to become the king of the membrane.

NanaMem® flat ceramic membrane has been used in many fields such as municipal sewage, industrial sewage treatment, engineering bidding, oil-water separation, aquaculture wastewater, fish pond, seafood aquaculture water purification, car washing, and swimming pools water reuse. NanaMem® flat ceramic membranes have been exported to Mexico, Thailand, Vietnam, Indonesia and other countries.