Treatment device and method for chemical nickel plating waste liquid

• Main Authors: ZHOU QIUMAN, CHEN HAIJIAO, SONG WENJIE, FAN HONG, PAN ZHANCHANG
• Format: Patent
• Language: Chinese; English
• Published: 25.06.2019
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Belonging to the technical field of chemical nickel plating wastewater treatment, the invention discloses a treatment device and method for chemical nickel plating waste liquid. Specifically, a pH automatic controller and an ORP automatic controller are utilized for automatic adding of alkali and sodium chloride, electrocatalytic oxidation is employed to break complexing so as to dissociate and precipitate nickel ions at an negative electrode; then resin adsorption is utilized for deep nickel removal to as to make the nickel ion below the emission standard; adding a Fenton reagent into the nickel removed solution for further oxidization of phosphate radical into phosphate radicals easy to precipitate, and under the action of a calcium salt and a flocculant, the product is converted into calcium phosphate precipitate so as to realize up-to-standard emission of nickel and phosphorus. According to the invention, the catalyst is added in electrolysis to produce electrocatalytic oxidation so as to realize the dual