How to choose flocculant in wastewater treatment?

How to choose a flocculant in wastewater treatment should be selected according to the characteristics of the wastewater in a specific industry, and at the same time, it also depends on where the flocculant is added and what purpose it is used for.


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Overview and Applications of Bisacrylamide

Bisacrylamide is a chemical substance with a molecular formula of C7H10N2O2. Bisacrylamide has two identical and very active reactive functional groups. It can be polymerized with a variety of ionic monomers to prepare ion exchange resins, and is polymerized with nitrogen and sodium acetate. In addition, it can also be used in medical, cosmetics and paper processing fields, and it has a wide range of uses.


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The application of microbial flocculants in actual water treatment

The main component of microbial flocculants is microbial cells or their secondary metabolites. It has the characteristics of wide application range, high flocculation activity, safety, harmlessness, and easy biodegradability, so it can be widely used in the treatment of water supply, sewage and wastewater.


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Poly(Dimethyl diallyl ammonium Chloride) has good dewatering performance for activated sludge

Poly(Dimethyl diallyl ammonium Chloride) is a cationic organic polymer with dimethyldiallylammonium chloride as the main body. It has good water solubility, and the aqueous solution is neutral, It has good dewatering performance for activated sludge.


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Application of PDMDAAC-Bentonite in the Treatment of Reactive Dye Wastewater

PDMDAAC bentonite prepared by modifying bentonite with Poly(Dimethyl diallyl ammonium Chloride) has greatly improved its adsorption performance compared with the original soil. The decolorization rate of printing and dyeing wastewater is slightly higher than that of activated carbon, but the treatment time is far less than that of activated carbon.


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Solvent effects of siloxanes on donor–acceptor interactions

Researchers at Kanazawa University report in Chemical Communications how solvents influence the strength of donor–acceptor interactions.  They found that silicone solvents, providing low compatibility, intensify donor–acceptor interactions between aromatic molecules compared to hydrocarbon solvents.


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Factors affecting the flocculation effect of microbial flocculants

The degree of treatment of water supply, sewage, and wastewater mainly depends on the flocculation characteristics of the microbial flocculant. Therefore, a better flocculation effect can be achieved through certain treatment conditions.


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Researchers have made new progress in the research of smart multicolor fluorescent polymer hydrogels

This research work preliminarily proves the feasibility of using the biomimetic multilayer core-shell structure to prepare smart multicolor fluorescent polymer hydrogels, which is expected to play an important role in the application of seafood freshness detection, information security and encryption, and flexible discoloration skin.


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Precautions for the use of polyacrylamide

1. The size of the flocs, 2. The characteristics of the sludge, 3. The ionicity of polyacrylamide, 4. The dissolution of polyacrylamide, 5. When using a composite flocculant, you must pay attention to the order of addition and the time interval of dosing .


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AIE-active Fluorescent Polymeric Hydrogel Emerged as Research Hotspot

Based on previous findings on AIE-active FPHs, Prof. CHEN Tao and colleagues at the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences (CAS), systematically summarized the recent progress in this young but flourishing research area, with particular focus on the design and preparation of AIE-active FPHs. The study was published in Aggregate.


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What are the application fields of polyacrylamide?

Polyacrylamide applications include: water treatment, sewage treatment and industrial water treatment; oil field chemical treatment agents, widely used as retention aids, filter aids, and leveling agents in the papermaking field; and used in medical materials; food industry, etc.


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Factors affecting the viscosity of polyacrylamide

The viscosity of polyacrylamide solution mainly reflects the internal frictional resistance between liquid molecules due to flow or relative movement. The internal friction resistance is related to the structure of the polymer, the nature of the solvent, the concentration of the solution, temperature and pressure and other factors.


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Characteristics and applications of polyacrylamide

Polyacrylamide (PAM) is a linear polymer with the chemical formula (C3H5NO)n. Polyacrylamide has a wide range of applications in industries such as petroleum exploration, water treatment, textiles, papermaking, mineral processing, medicine, and agriculture.


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Fixing mechanism of fixing agent

The cationic group in the colour-fixing agent molecule and the anionic group in the dyestuff molecule are used to form an ionic bond to form a deposit on the fiber, thus reducing the water-solubility of the dyestuff and improving the color fastness of the dyed fabric.


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Common types and choices of reactive dye fixing agents

The fixing agent can improve the washing fastness of the dye and resist the bad influence of the atmosphere on the dye. Common types of fixing agent: metal salt fixing agent, cationic fixing agent, reactive fixing agent.


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Microbial flocculants have great market potential

The commercial production of microbial flocculants began in the 1990s. Because there is no secondary pollution, it is convenient to use and has an attractive application prospect.


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Polyacrylamide, a widely used flocculant in water treatment

Flocculants are widely used in water treatment. They are synthetic polyacrylamide series products, mainly divided into anionic, cationic, nonionic and zwitterionic. Polyacrylamide (polyacrylamide), often abbreviated as PAM.


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Main Types of organic polymer flocculants

Main Types of organic polymer flocculants: 1. It is made based on natural polymer organic matter and chemical treatment to increase its active group content. 2. Polyacrylamide series products synthesized by modern organic chemical methods. 3. It is made by grafting (or copolymerizing) natural raw materials and polyacrylamide.


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Main categories and characteristics of inorganic flocculants

Mainly divided into two categories: iron preparation series and aluminum preparation series, of course, also includes its cluster of high polymer series.


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Brief introduction and main classification of flocculants

According to its chemical composition, flocculants can be divided into inorganic flocculants and organic flocculants. Among them, inorganic flocculant includes inorganic coagulant and inorganic polymer flocculant; organic flocculant includes synthetic organic polymer flocculant, natural organic polymer flocculant and microbial flocculant.


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