国家/地区 中国（3）
IPC部 B（3）
IPC大类 B01（3） C02（3）
IPC小类 B01D（3）
IPC B01D039/20（3）
发明人 ZHANG K（3）
公开年 2021（2）
申请年 2019（2） 
专利权人 NUCLEAR IND .（2）

Purifying agent used in industrial waste water treatment includes modified mixed flocculant including sodium hydroxide, sodium sulfide, polyferric sulfate, sodium polystyrene sulfonate and composite activated carbon filter element including activated carbon powder, and graphene oxide.

ZHANG K, ZHENG X, QIAO J, ZHAO Z, YANG X, LIN X, LIU F, LIU Y

Composite filter element useful in filter for emergency water supply, comprises multiple closely-connected hollow cylindrical filter layers, which are ceramic layer, composite adsorption layer, protective layer and activated carbon layer.

ZHANG K, WEI S, LIU M, BI Y, DU J

Filter for emergency water supply, has shell whose side wall is formed with water inlet, where bottom part of shell is formed with water outlet and center part of composite filter core is formed with central cavity for flowing out water supply flow.

ZHANG K, WEI S, LIU M, BI Y, DU J