How to determine the dosage of polyacrylamide PAM by testing wastewater

How to formulate polyacrylamide PAM into liquid, and its turbidity, decolorization, including the application of removing heavy metal ions, polyacrylamide PAM in the process of dosing and use, how to choose its dosage ratio through the situation of wastewater, which is very important. Under normal circumstances, wastewater is collected for small experiments to calculate the amount of polyacrylamide PAM.

2021-05-19

What is the difference between polyacrylamide and polyaluminum chloride?

Polyacrylamide and polyaluminum chloride are two commonly used flocculants in the water treatment industry, and they are used as water treatment to play the role of coagulation precipitation, so many people are not clear about their differences, today Xiaoqi will talk to you about the specific difference between polyacrylamide and polyaluminum chloride. Polyacrylamide is an organic polymer, also known as organic flocculant, which can be divided into three types: cationic, anionic and non-ionic, and the appearance is white dry powder or emulsion. Mainly used in sewage treatment, raw water treatment and industrial water treatment; Polyaluminum chloride is an inorganic polymer, also known as inorganic flocculant, the appearance of the color is diverse, mainly according to its content and change, brown, light brown, yellow, the higher the aluminum content, the lighter the color. The effect of treating sewage is also good, it has a wide range of applications, and is widely adapted to various waters. It can quickly form large alum flowers and has good precipitation performance. The suitable pH range is wide, and the pH value and alkalinity of the treated water decrease is small. When the water temperature is low, it can still maintain a stable precipitation effect. The alkalinization degree is higher than other aluminum salts and iron salts, and the effect on equipment erosion is small. To sum up, the frequency of use of polyacrylamide in sewage treatment is given, but the use of polyaluminum chloride is also a lot, because they are different types of flocculants, so they can be used complementarily in use, and their role must be one plus one greater than two.

2021-04-30

1 minute, teach you the right choice of polyacrylamide (PAM) model!

How to correctly choose polyacrylamide (PAM) model is an old problem, a common problem, and a problem that is easy to choose wrong. Picked the wrong one? What's the harm? There is basically no big harm, that is, the cost is increased or the flocculation effect is not as it should be, and the treatment is not up to standard. Of course, regardless of the size of the hazard, whether it is a hazard or to be avoided, it is also important to correctly select the right polyacrylamide (PAM) model.

2021-03-26

New standards and new regulations, emulsion cationic polyacrylamide testing requirements are revealed

Cationic polyacrylamide is an important one of the four major ionization properties of polyacrylamide (other types are non-ionic, anionic and zwitterionic). Cationic polyacrylamide has good water solubility and high flocculation ability because of the high density positive charge on the macromolecular chain, so it has a wide range of applications in industrial sewage treatment, wastewater treatment, sludge decarburization water treatment. Ionic and anionic polyacrylamide has also been known as a water treatment agent for a long time. However, with the development of new technology of emulsion cationic polyacrylamide, as a water treatment agent, it is easy to stir, easy to dissipate, less dosage, convenient operation, and has begun to be valued.

2021-02-20

Explain how to get the best out of polyacrylamide

The three important indicators of polyacrylamide are molecular weight, hydrolysis degree and solid content. There are three main indicators of cationic polyacrylamide, that is, ionization, solid content and molecular weight. The molecular weight of anionic polyacrylamide varies from 6 million to 22 million, and the ionization degree of cationic polyacrylamide varies from 20%-60%; Recently, many customers in different fields have reported that the effect of adding polyacrylamide is not good, and Yuanda Water Purification Materials suggests: choose the corresponding anion or cationic products according to the on-site sewage treatment process and equipment.

2021-01-08

Cationic polyacrylamide price, use, function, indicators

Cationic polyacrylamide is a water-soluble polymer with a positive charge in its solution, which can adsorb negatively charged substances, effectively flocculate suspended solids and colloids with high organic matter content, and can strengthen solid-liquid separation for desilting. Because it contains a variety of active groups, it can be reacted with a variety of substances in sewage to capture, adsorption, bridge. Cationic polyacrylamide has the functions of precipitation and turbidity removal, decolorization, bonding, and strengthening slurry water separation. Cationic polyacrylamide At present, domestic cationic polyacrylamide is mostly prepared by binary copolymerization or ternary copolymerization, and binary copolymerization is prepared by AM (acrylamide) and DAC (acryloyloxyethyltrimethyl

2018-12-12

The more expensive polyacrylamide, the better the effect, right? You'll know it after reading this

The more expensive the price of polyacrylamide, the better the effect, this is obviously wrong, so on the other hand, the better the effect of polyacrylamide, the more expensive the proposition is true? Let's discuss below: What determines the good or bad effect of polyacrylamide? The quality and badness of polyacrylamide need to be judged according to its use conditions, and when the role is different, the factors that determine its quality are also different. In the field of water treatment, when polyacrylamide acts as precipitation, its quality can be observed by observing the flocculation effect (huddle size), precipitation rate, water quality clarity, polyacrylamide amount used, polyacrylamide dissolution rate and whether it can meet the on-site make

2018-10-20

What are the two most important factors affecting the future of China's chemical industry?

Editor's note: On September 13, at the 2018 China International Petrochemical Conference, Li Shousheng, president of the China Petroleum and Chemical Industry Federation, delivered a keynote speech entitled "Jointly Create the Next Future of the Petrochemical Industry with Consumption Upgrading and Supply-Side Structural Reform". With his consent, Interface News has excerpted some of the content for industry discussion. Author: Li Shousheng, President of China Petroleum and Chemical Industry Federation, after 40 years of rapid development of reform and opening up, China's productivity has been greatly liberated and continuously improved, the contradiction between market supply and demand has shifted from insufficient supply to overall oversupply, and people have shifted from pursuing consumption quantity to pursuing consumption quality

2018-09-28

Shenyang Chemical will lift the ban on 159 million shares on November 23

Flush Finance Baijia No. 11-2000: 31 Shenyang Chemical will unban 159 million shares on November 23, 2018, accounting for 19.35% of the total share capital.

2018-06-16

Environmental protection inspection, another batch of pharmaceutical companies and chemical industries are about to close

According to reports, a new round of environmental inspections in 2018 is coming, and the requirements for this inspection will be more stringent! On March 29, 2018, the Ministry of Ecology and Environment announced the "Second Batch of Central Environmental Protection Inspectors in 7 Provinces (Cities) Public Transfer of Cases Accountability". 1,048 people were questioned in seven provinces, including Shanghai, Hubei, Guangdong, Chongqing, Shaanxi and Gansu. A new round of environmental inspections is coming, and the Ministry of Ecology and Environment held a regular press conference in March 2018. Liu Youbin, spokesman of the Ministry of Ecology and Environment, said that the Ministry of Ecology and Environment resolutely shoulders the political responsibility of ecological civilization construction and environmental protection: First, closely focus on fighting the battle against pollution

2018-05-26