Patent · US Active

Method and reactor for separating and removing heavy metals from wastewater using sulfhydryl-modified nano-magnetized activated carbon

US11628417B2 · kind B2 · utility

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Assignee

Dalian Maritime University · CN

Inventors

Jin Zhang · Mountain View, US
Qing Su · Dalian, CN

Key dates

Filing date	Mar 30, 2021
Grant date	Apr 18, 2023
Priority date	—
Expiry date	Jul 23, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2305/08
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method and reactor are disclosed for separating and removing heavy metals from wastewater using a sulfhydryl-modified nano-magnetized activated carbon. The method includes the steps of preparing a sulfhydryl-modified nano-magnetized activated carbon first; introducing heavy-metal-containing wastewater into a reactor which is equipped with a stirrer and keeping stirring, and then adding the sulfhydryl-modified nano-magnetized activated carbon, continuously stirring for a reaction; after reacting for a period, precipitating under a magnetic field generated by a magnet separator, discharging the resulting supernate, and then discharging the precipitated sludge.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.