Composite powdery calcium sulphate sewage treating agent and preparation method thereof

Abstract

The invention discloses a composite powered calcium sulfate sewage treatment agent and a method for preparing the same. The sewage treatment agent comprises the following materials in weight portion:5 to 10 portions of tartaric acid, 3 to 5 portions of malic acid, 60 to 70 portions of calcium sulfate, 10 to 15 portions of magnesium carbonate, 10 to 20 positions of calcium carbonate, 10 to 20 portions of ferric chloride, 10 to 20 portions of calcium oxide and 2 to 3 portions of polyacrylamide. The method is to mix the materials. Compared with the prior art, the sewage treatment agent and the method have the advantages of multifunction, high efficiency, environment protection, quick sewage treatment speed, short treatment time, broad-spectrum and high-efficiency removal of various pollutants and harmful substances and strong adaptively to the sewage muddiness, wide pH value range and wide water temperature change of the sewage. The sewage treatment agent and the method have high alkalization degree, small corrosion, convenient production and no pollution in the production process, simple product package, convenient transportation and low composite cost.

Description

technical field [0001] The invention belongs to a sewage treatment agent and a preparation method thereof, in particular to a composite powdery calcium sulfate sewage treatment agent and a preparation method thereof. Background technique [0002] At present, the main treatment method for water pollution is chemical treatment, that is, water pollutants are treated by adding drugs. Due to the various and mixed types of water pollutants, and the main water treatment agents currently used have single functions, it is necessary to add flocculants, corrosion inhibitors, fungicides and other agents to the water treatment system, and the treatment process is complicated. There are a lot of equipment, the operation process is complicated, the dosage of chemicals is large, the cost is high, and various reagents will resist each other through various chemical reactions, resulting in a decrease in drug efficacy. Among the flocculants currently used for sewage treatment, they are the mos...

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Problems solved by technology

Due to the various and mixed types of water pollutants, and the main water treatment agents currently used have a single function, it is necessary to add flocculants, corrosion inhibitors, fungicides and other agents to the water treatment system, and the treatment process is complicated.

There are a lot of equipment, the operation process is complicated, the dosage of chemicals is large, the cost is high, and various reagents will resist each other through various chemical reactions, resulting in a decrease in drug efficacy. Among the flocculants currently used for sewage treatment, they are the most widely used PAC (polyaluminum chloride) generally has problems such as insufficient polymerization degree, weak flocculation and bridging ability, turbidity of effluent and unstable hydrolysis reaction. Different sewage environments will have a relatively large impact on flocculation. The effects of different sewage environments will vary greatly, among which the temperature of the water body, the pH value and the concentration of pollution have the greatest impact on the flocculation effect. It is difficult for general flocculants to adapt to different sewage conditions. Therefore, in the process of sewage treatment, it is necessary to Check the water temperature and pH value at any time, and manually adjust it to the applicable range of the treatment agent before the reaction can continue, resulting in complicated process and cumbersome operation.

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