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Nonionic Polyacrylamide Most Critical
May 26, 2017

Nonionic Polyacrylamide In the sludge dewatering process, the choice of sewage treatment agent is the most critical, there are many uncertainties, mutations often occur, a lot of time with good reagents, but because of the scene of some of the water into the hair or sludge changes in the change, lead to the selection of a good agent ineffective or ineffective, which results in the extraction of sewage samples back to do the test, which requires that pharmaceutical suppliers can not only provide products, but also have a relatively good after-sales service, under normal circumstances, Well-matched reagents are still relatively stable.

At present, the industrial solid-liquid separation process generally uses polyacrylamide as flocculant, including sedimentation, clarification, Nonionic Polyacrylamide concentration and sludge dewatering process, the application of the industry is also relatively wide, according to the source of sewage mainly divided into two types: urban sewage and industrial wastewater.

Urban sewage: Refers to sewage discharged into the urban sewage system collectively, at the same time, municipal sewage also includes domestic sewage and industrial sewage, urban sewage in the choice of polyacrylamide as a flocculant used, the general use of cationic polyacrylamide, ionic degree generally in $number around, of course, according to the different water quality, but also specific problems specific analysis.

Industrial wastewater: According to the chemical properties of the main contaminants contained in industrial effluents, mainly divided into: organic wastewater containing organic pollutants, inorganic wastewater containing inorganic pollutants, mixed wastewater containing organic and inorganic materials, wastewater containing radioactive substances and only heat-polluted cooling water,Nonionic Polyacrylamide and heavy metal wastewater. For example, the waste water in the process of food or petroleum processing is organic wastewater, and the waste water and electroplating wastewater in the process of mineral processing are inorganic waste water.

According to the classification of industrial processing objects, can be divided into: metallurgical wastewater, textile wastewater, papermaking wastewater, tannery wastewater, pesticide wastewater, oil refining wastewater, mineral processing industry, dyeing industry and sugar industry.

Municipal sewage and industrial wastewater are commonly activated sludge treatment, biochemical sludge is often hydrophilic very strong colloid, Nonionic Polyacrylamide high organic content, extremely difficult to dehydrate. With cationic polyacrylamide treatment, Nonionic Polyacrylamide the dosage is low, dehydration efficiency is high and easy to separate.

Alcohol Factory wastewater, brewery wastewater, monosodium glutamate plant wastewater, sugar factory wastewater, Meat products factory wastewater, Nonionic Polyacrylamide beverage plant Wastewater, textile printing and dyeing plant wastewater. Cationic polyacrylamide is more than dozens of times times more effective than anionic polyacrylamide, nonionic polyacrylamide or inorganic salts. Because such waste water is generally negatively charged.

The selection of polyacrylamide is mainly based on the different charge types of the sewage water. According to the characteristics of water quality to choose the use of cationic polyacrylamide, anionic polyacrylamide, nonionic polyacrylamide, etc., Nonionic Polyacrylamide the process is generally from the laboratory test, to the factory to test, the final determination of product selection, specific problems specific analysis. No matter what the industry's water quality, the choice of the model is the most critical, mutation events occur, once the change, we want to calm treatment, not only look at the problem itself, to find out the solution, the choice of polyacrylamide is a very experimental process.