Water purifying agent

Abstract

A water cleaning agent is prepared from aluminium polyalumiante, iron polyaluminate, polyacrylamide and fluorescent whitening agent through mixing. Its advantages are high effect, low dosage, short period and no secondary pollution.

Description

technical field [0001] The invention relates to a water purifying agent, which is especially suitable for water purification in waterworks and drinking water in various environments. Background technique [0002] With the continuous improvement of my country's economic development and the improvement of people's living standards, it has also brought about the deterioration of the surrounding environment. Drinking water sources are subject to eutrophication in different degrees across the country, and a large amount of organic matter is troubled. The environment of water intake is affected. The safety of the industry is endangered. The products used in the water industry are as follows: aluminum-based flocculants and iron-based flocculants. [0003] 1. Aluminum flocculant: [0004] Aluminum-based water purifiers are currently the most widely used and mature process routes. Inorganic metal salt flocculants have large flocs during the hydrolysis process, and ...

AI Technical Summary

Problems solved by technology

[0006] Iron-based flocculants are simple to operate, low in cost, and affected by temperature, small flocs have a strong affinity for microorganisms, and can effectively remove suspended solids, colloids, and aerobic microorganisms in water. Iron salts have the problem of yellowing and blackening. When the pH is less than 8.5, Ft2+ has a high solubility in water and cannot be completely settled from the water body. The residual iron in the effluent will be oxidized to Ft3+ to form Fe(OH) 3 Precipitation causes secondary coloring, Ft2+ treatment of high organic content, raw water with high chroma can interact with humic acid in the water to survive organic iron compounds such as humic acid iron that are difficult to flocculate and settle, making the water "black water"