Method of utilizing modified active carbon particles to preprocess aluminum alloy milling wastewater

• Main Authors: QIAO YONGLIAN, WANG HONGWEI, ZHOU SHILEI
• Format: Patent
• Language: Chinese; English
• Published: 16.08.2019
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention belongs to the field of industrial wastewater processing, and relates to a method of utilizing modified active carbon particles to preprocess aluminum alloy milling wastewater. Accordingto the method, active carbon particles are modified, and modified active carbon particles and iron chips are used to carry out electrolysis to process aluminum alloy milling wastewater. The method comprises following steps: soaking coconut shell active carbon particles into an acetone solution for 24 hours; repeatedly washing the active carbon particles by distilled water; adding processed activecarbon particles in a diluted phosphoric acid solution, heating the diluted phosphoric acid solution for 6 hours in a water bath with a temperature of 60 DEG C, taking out, washing, drying, sealing,storing; adjusting the pH of aluminum alloy milling wastewater to 3-4 by diluted sulfuric acid; adding modified active carbon particles and iron chips into wastewater; fully stirring the wastewater for one hour, and allowing th