Novel industrial wastewater flocculant and preparation method thereof

Abstract

The invention discloses a novel industrial wastewater flocculant and a preparation method thereof, and belongs to the field of water treatment agents. The novel industrial wastewater flocculant is prepared from, by weight, 4-10 parts of calcium oxide, 4-10 parts of polyethyleneimine, 3-9 parts of polymeric aluminium, 4-8 parts of ferric phosphate polymer, 3-9 parts of sodium hydroxide, 4-10 parts of activated carbon, 3-9 parts of aluminum sulfate, 4-10 parts of cellulose, 2-8 parts of disodium hydrogen phosphate, 2-8 parts of sodium lignosulphonate, 5-10 parts of bentonite and 120-160 parts of water. The novel industrial wastewater flocculant is short in flocculent precipitation time, good in effect and low in cost, active emulsifying power of water molecules is improved, harmful substances and heavy metals of water are degraded, high-concentration and high-turbidity wastewater and non-biochemically-degradable wastewater can be treated effectively particularly, and quality of treated water can be recycled.

Description

technical field [0001] The invention relates to a novel industrial wastewater flocculant and a preparation method thereof, belonging to the field of water treatment agents. Background technique [0002] Flocculation is one of the most commonly used key links in wastewater treatment processes. It greatly affects the operating conditions of subsequent processes, final effluent quality and costs, and thus becomes an important scientific and technological research and development field in environmental engineering. An efficient flocculation technology system should be closely combined with excellent flocculants, reactors and self-controlled dosing, among which flocculants play a central role. The key to flocculation treatment technology is to choose a suitable flocculant. [0003] There are many ways to classify flocculants. According to different compositions, they can generally be divided into inorganic flocculants, organic flocculants, and natural flocculants (such as biolog...

AI Technical Summary

Problems solved by technology

[0004] High-concentration industrial wastewater is not only different from domestic sewage, but also different from general industrial wastewater. It often contains a variety of toxic and harmful refractory organic matter, heavy metal ions and ammonia nitrogen and other pollutants. Due to the single flocculation component, the treatment effect of these high-concentration wastewater is not ideal, especially for the removal of dissolved pollutants in water.

Therefore, for high-concentration wastewater, there is still a lack of a flocculant with broad spectrum, high efficiency, good stability, strong specificity, excellent flocculation performance, and moderate cost performance.