Treatment method and device of high-salt-content nondegradable dye wastewater pit-pond

• Main Authors: XU DANYU, QIAO NAN, GAO WEI, WANG QI, SUN KAI, TAN CUILING, ZENG MENG, LYU JINGHUA, SHI YAN, HOU YING, ZHONG CHENG, LI XIAOJING, DUAN YUNXIA
• Format: Patent
• Language: Chinese; English
• Published: 25.01.2017
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to a treatment method and device of a high-salt-content nondegradable dye wastewater pit-pond. The percolation pit device comprises a pretreatment pH regulating tank, a Fenton oxidation tower, a microbial strengthening effect tank, an activated carbon adsorption regenerating tower, a disk tubular reverse osmosis membrane, a triple-effect evaporator, an activated carbon filter, a rotary drying machine and a pyrolyzer. A physicochemical process, a microbial strengthening process and a membrane technique are coupled to implement the high-salt-content industrial wastewater advanced treatment and desalting recycling technique under the synergistic actions; and the technique implements high removal rate, is economical and applicable, and can perform stable treatment without generating secondary pollution. The high-salt-content nondegradable pit-pond sewage treatment integrated technique, rotary drying for sediment treatment and pyrolysis integration technique are developed to implement reutili