There is always a reason for the title that is not made without cause. We all know that polyacrylamide flocculants are known as "hundreds of agents", but do you know why? Is mainly used to water purification products more onefold, in view of the industry is also limited, so don't call it "all sectors agent", right now, the emergence of polyacrylamide flocculant, it broke the limit of the industry, every industry can be used to, also slowly recognized by everyone, as more and more the application of the industry, "all sectors agent" would be accepted by everyone; Polyacrylamide flocculants can be applied to these industries:
Pulp and paper industry
The processing of paper black liquor is the key to wastewater treatment in papermaking industry, and the main treatment method is flocculation precipitation method.
It is commonly used as a flocculation settlement of the black liquid in papermaking, and the posterior segment biochemical sludge is dehydrated with the cationic polyacrylamide.
Printing and dyeing industry
In printing and dyeing wastewater treatment process, polyacrylamide on their long molecular chain on stability to a certain degree of bridging between particles to form bulky flocculation body, by bridging flocculation, flocculation and network make connected with floccules particle settling velocity is accelerated, thus to improve chromaticity and removal rate of organic matter.
In municipal wastewater treatment applications, the polyacrylamide with inherent in electrical neutralization and adsorption bridging role, can push rapid agglutination clouding particle separation, the effect of clarification. It is mainly used in the front flocculation settlement of sewage treatment plant and the latter sludge dehydration.
The chemical industry
The most commonly used chemical wastewater treatment method is chemical coagulation method, its function mainly is the tiny suspended solids in water and colloidal substance, by adding the chemical coagulation and flocculation, the colloid stability off form precipitation, to remove.
Mineral processing industry
Mud water is a suspended liquid containing a certain amount of fine mud particles in water. The mainstream treatment is flocculation precipitate. After adding polyacrylamide flocculant to deal with, then through mud water dehydrator squeezing, mud removal rate over ninety-five percent, clear liquid water in the pool can be directly back to sand washing system, truly achieves zero emissions.
The waste water of metallurgical industry is called steel mill waste water. The production properties can be divided into coke plant waste water, blast furnace waste water, steelmaking and rolling steel wastewater. The most commonly used chemical processing method, the method is to waste the cic add some chemicals (such as polyacrylamide) directly with pollutants in the waste water to form the chemical reaction, the formation of refractory solid products (sediment), and then carries on the solid-liquid separation, so as to remove the water pollutants.
The coating industry
Coating containing resin, surfactant, heavy metal ions in waste water, Oil, paint and other pollutants, complex composition, high concentration, but the actual situation of biological sex difference, USES the high quality processing, coagulation precipitation, coagulation, gas floating and sand filtration process on coating waste water processing, the processing method which is feasible in technology and economy.
In leather wastewater, the pollutants are complex and the treatment methods of synthetic wastewater are many, such as biochemical process and materialization. Domestic leather wastewater treatment usually adopts the combination of materialized treatment and biochemical treatment, this method investment province, the operating cost is low, can stabilize the target discharge.
The food industry
The food industry has a wide range of raw materials, the variety of products, the amount of water discharged from waste water and the difference of water quality.
For high water quality requirements or because of wastewater with high organic matter content in wastewater, can adopt two-stage aeration tank or two-stage biological filter, or multi-stage biological rotating disc. Or a combination of two kinds of biological treatment device, also can be used in the series of anaerobic - aerobic biological treatment systems.
The most traditional treatment for electroplating wastewater treatment is chemical treatment (i.e. cic with flocculant in wastewater)
The method is stable treatment effect, low processing cost, convenient operation and management, but need to dispose of sludge after treatment, with no recovery value should adopt chemical method of electroplating wastewater treatment.
The alcohol industry
Alcohol wastewater is organic wastewater of high concentration, high temperature and high suspended solids, the wastewater biochemical treatment technology is often used to deal with, biochemical sludge general advice with cationic polyacrylamide used as sludge dewatering agent.
Ceramic processing sewage is the clay, feldspar, limestone, etc as raw material to add appropriate dispersant and water after berkelium burning, vent of sewage into the ceramic production process. The most common method for dealing with this kind of sewage is the coagulant sedimentation method (PCL and polyacrylamide flocculating agent)
The pharmaceutical industry
Most pharmaceutical wastewater in the biochemical treatment must conduct the necessary preprocessing before, in order to reduce the SS, salinity and part of COD in the water, reduce the waste water in biological inhibitory substances, and improve the wastewater can be degraded, to facilitate the subsequent biochemical treatment of wastewater.
The oil industry
The main pollutant of oil field is oily wastewater, and the main target of wastewater treatment is oil removal. In the case of wastewater with high oil content, it can be used in three ways. For wastewater with low oil content, the second method can be applied to meet the requirement of the index.
The range of polyacrylamide flocculating agents is unprecedented and is gradually replacing traditional flocculating agents. If you use of polyacrylamide flocculants have any doubt, consult yantai billion Thai chemical co., LTD., telephone: 0535-6722178
鲁ICP备14019848号-1 CopyRight © 2013-2016 Yantai billion thai chemical co.,ltd.All Rights Reserved Technical support:pintoo co.,ltd