国家/地区 中国（5）
IPC部 C（5）
IPC大类 C02（5） C01（2）
IPC小类 C02F（5） C01B（2）
IPC C02F001/66（5）
发明人
公开年 2023（5）
申请年 2022（5）
专利权人

Treatment of chromium-containing wastewater involves using lignin-based composite aerogel as adsorbent material, adjusting pH of chromium-containing wastewater, and removing hexavalent chromium-ion in wastewater.

ZHANG Y, ZHAO X, CHU R, GUO X

Zero-discharge treatment method for full resource utilization of waste acid in graphene production by e.g. adjusting supernatant pH to neutral by adding sulfuric acid, evaporating and concentrating by mechanical vapor recompression, crystallizing to obtain potassium sulfate, recycling water.

FENG X, FENG J, XIAO L, FENG S

High nitrate graphene water processing device comprises coagulation reaction tank, alkali medicine adding device, polyacrylonitrile butadiene styrene (PAC) dosing device, and polyammonium acetate (PAM) dose device.

YANG G, WU Y, LI Y, ZHAO J, JIN W

Nickel-containing wastewater treatment system used for processing electroplating, industrial nickel-containing waste water, comprises pre-processing system including nickel-containing wastewater adjusting tank and pH adjusting tank and desalination system including multi-medium filter.

YANG Y, GONG B, GONG L, GONG Y

Device used for extracting graphene, consists of stirring tank connected with feed tank and water tank, circulation pump connected to side of stirring tank through pipeline, pneumatic diaphragm pump, pressure filter device, oxidation catalytic device and filter device.

ZHAN Z