Circulating treatment system for cadmium-containing wastewater in cadmium telluride thin-film solar cell production

• Main Authors: PAN JINGONG, LU YONGJUN, LUO BO, YUN WEIMING, WAN TAOCHENG, FU GANHUA, XIA KANG, HU LONGTAO, ZENG FANRONG, YANG WEN
• Format: Patent
• Language: Chinese; English
• Published: 23.12.2022
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The utility model discloses a circulating treatment system for cadmium-containing wastewater in cadmium telluride thin-film solar cell production, which comprises a water collecting tank, a reaction tank and a settling tank which are sequentially connected with one another, a bottom outlet of the settling tank is connected with a sludge tank, an outlet of the sludge tank is connected with a filter press, and an upper outlet of the settling tank is connected with an adjusting barrel. A fresh water outlet of the reverse osmosis device is connected with the EDI device; a concentrated water outlet of the reverse osmosis device is connected with the ion exchange device; an outlet of the ion exchange device is connected with the adjusting barrel; a concentrated water outlet of the EDI device is connected with the reverse osmosis device; the circulating treatment system provided by the utility model is scientific and reasonable in configuration, stable in operation, high in treatment efficiency, strong in operabilit