High-efficiency sludge dehydrating agent is a high-performance polymer whose main function is to improve the sludge structure and dewatering effect, thus reducing the volume of sludge.

Polyquaterniums are cationic (positively charged) polymers, polyquaternium (acronym Polyquat), which help to enhance the shine and softness of hair while simultaneously reducing frizz, breakage and split ends.

Given that oily wastewater has the characteristics of being difficult to degrade and easy to emulsify compared to other general polluted water sources, conventional treatment processes cannot achieve the expected results. This article briefly introduces the coagulation ultrafiltration treatment process for oily wastewater.

Polymer coagulants have strong adsorption properties and aggregation capacity, and metal salt coagulants are able to treat large amounts of wastewater quickly and at low cost.

The common coagulants used for treating drinking surface water are aluminum sulfate, iron sulfate, ferric chloride, sodium aluminate. In addition to the coagulants listed above, there are many other coagulants available for treating drinking surface water, including polymers and natural coagulants

Organic sludge conditioner is a composite conditioner, whose function is to fully break the wall of organic biomass in sludge and release water before flocculation and dehydration, which is beneficial for sludge reduction treatment through dehydration equipment.

Poly(dimethyl diallyl ammonium chloride) Other name: Polydmac; PDMDAAC; PDADMAC, It is widely used as antistatic agent, spinning oil agent and flocculating agent. This article introduces the typical applications of Polydmac.

Biological method refers to a treatment method that gives full play to the metabolism of microorganisms, realizes the effective decomposition of organic pollutants contained in chemical wastewater. In addition, as a new method and technology in the treatment of chemical wastewater, the constructed wetland has the characteristics of low energy consumption.

Although PDMDAAC has a high density of positive charge, it also has some shortcomings, such as low molecular weight due to factors such as decay chain transfer, and its strong hydrophilicity and hydrophobicity. These disadvantages limit its application to a certain extent.

Water-soluble cationic polymer has a wide range of applications, and DMDAAC polymer is one of the best. This is not only because of its high efficiency, non-toxic, high positive charge density, but also because of its low cost.

The monomer solution is generally about 60%. Under the condition of nitrogen deoxidization, polymerization is initiated with an appropriate amount of initiator within the appropriate temperature range of the initiator. Other additives can also be added in the polymerization process to improve the performance of the polymer.

Clarifier is a device for water coagulation and removal of suspended solids and colloids in water. The medium used to intercept and separate impurity particles in the clarifier is suspended sludge. The coagulation treatment process of water and wastewater includes three stages: mixing of water and chemicals, reaction and separation of flocs and water.

Chemical wastewater generally comes from inorganic chemical and organic chemical wastewater. Generally, chemical wastewater can be divided into petrochemical wastewater, synthetic chemical wastewater, textile printing and dyeing industrial wastewater, etc.

Wastewater from food processing is biodegradable, non-toxic, high in biological oxygen demand and suspended solids. Settling, wedge screens are a common method to reduce suspended organic solids loads prior to discharge. Cationic high-efficiency oil-water separator is often used in the treatment of oily sewage in food factories.

The treatment of petroleum wastewater can effectively prevent the wastewater generated in the oil exploitation from having a huge impact on the environment.

[COD] chemical oxygen demand. It is the amount of oxidant consumed when a certain strong oxidant is used to treat a water sample under certain conditions.

The research team of Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences proposed the method of Interfacial Diffusion Polymerization, which realized the macro-precision growth of hydrogels, and further realized the repair of damaged polymer gels.

The oil production wastewater can be discharged only after the water quality reaches the standard after treatment. The following reference standards can be used as the oil production wastewater treatment standards.

In a study published in Chemical Science, a research group led by Prof. YUAN Daqiang from the Fujian Institute of Research on the Structure of Matter of the Chinese Academy of Sciences reported seven new water-robust POCs linked by hydrazone bonds.

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.