Method for treating electroplating platemaking wastewater by three-dimensional electrolysis

• Main Authors: HUANG YANING, CHEN MANLIN, LI JIANGUO, WANG MENGYUN, XIAO NING, WAN XUXING
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention provides a method for treating electroplating platemaking wastewater by three-dimensional electrolysis and belongs to the technical field of industrial wastewater treatment. The method comprises the following steps: 1) adjusting the pH (Potential of Hydrogen) value and electrical conductivity of the wastewater; 2) introducing active filling particles into a two-dimensional electrode to form a three-dimensional electrode; optimizing electrolysis parameters so as to carry out efficient electrolysis treatment on the electroplating wastewater containing heavy metal ions; 3) taking Fe<3+> newly generated in an electrolysis process as an efficient inorganic flocculating agent and adding alkali to adjust the pH value of the wastewater; flocculating and precipitating; filtering and discharging water. According to the method provided by the invention, a three-dimensional electrode electrolysis process is adopted and the electrolysis efficiency is extremely improved; on the basis of guaranteeing the heavy