The wastewater of hexanolactam (nylon) fiber production in Shijiazhuang Synthetic Fiber manufactory is high concentrated with organic nitrogen compounds.
It was studied that the process conditions of treating fluobenzene wastewater with acidification, extraction, inorganic fluoride removal and electrocatalysis.
The paper introduces their salt-tolerance mech anism and research progress regarding conventional anaerobic or aerobic sludge, halophile and salt-tolerant yeast.
An experiment on removing suspended solid(SS)from carclazyte catalyst production wastewater was carried out using 4 inorganic flocculants and 3 organic flocculants.
The optimized conditions for phosphorus recovery as hydroxyapatite from wastewater by synthetic tobermorite through seeded crystallization were studied in this paper.
The source and damage of manganiferous wastewater were introduced. The control technology, sewage purification means and water resources protection were discussed.
Primary modified process of natural clinoptilolite was introduced, with focus on application of both natural and modified clinoptilolite in wastewater treatment.
The test for treatment of waste water from acetic acid and acetic anhydride production by using anaerobic digestion-aerophile biochemical method is described.