The Floor Springs with Speed Adjustment Valves with 130-0 degree and 130-20 degree double closing speed adjustment valves is made in 304 Stainless Steel to ensure durability. Latching and closing speeds can be easily adjusted to ensure safety. The Speed Adjust Floor Springs are suitable for maximum 1500 wide door leaf and the maximum bearing weight is 130kgs. The opening maximum of the door leaf is 105 Degree, can be located at 90 degree or 105 degree.
Floor Spring Door,Glass Door Floor Spring Price,Aluminium Door Floor Spring,Floor Spring Door Fitting Leader Hardware Manufacturer Limited , https://www.leaderhardwarecn.com
When using anionic polyacrylamide, you can choose different molecular weight PAM based on your specific requirements.
Anionic polyacrylamide is widely used in wastewater treatment across various industries. In this article, we’ll explore its applications and how it can be tailored for different purposes. The key is to select the right PAM with the appropriate molecular weight depending on the application and user needs.
1) For industrial wastewater treatment, especially when dealing with larger suspended particles that carry a positive charge, and when the water has a neutral or alkaline pH—such as in steel plant, electroplating, metallurgical, and coal washing wastewater—anionic polyacrylamide proves highly effective. 2) In drinking water treatment, many water plants in China draw from rivers with low silt content but high mineral content, which makes the water turbid. Even after sedimentation, it still doesn’t meet standards, so flocculants are needed to clarify the water. While inorganic flocculants are commonly used, they require large dosages and increase sludge volume. Anionic polyacrylamide, however, requires only half the dosage of inorganic agents but delivers significantly better results—up to several times more effective. Our company’s polyacrylamide meets food-grade standards, with residual monomer levels below 0.05%, making it safe and ideal for treating drinking water, river water, and water contaminated with organic matter. 3) It’s also used in starch and alcohol plants to recover lost starch and distiller’s grains. Many starch factories discharge high-starch wastewater, which harms the environment and wastes resources. By adding PAM, the starch precipitates and can be filtered into a cake. Similarly, in alcohol plants, this process helps recycle distiller’s grains. One of Asia’s largest alcohol plants in Heilongjiang uses PAM for this purpose, achieving significant economic benefits. 4) It serves as a water-blocking agent in oil fields for profile control and water shutoff, and as an oil recovery agent in tertiary oil recovery processes. 5) In papermaking, PAM acts as a dispersant, wet/dry strength enhancer, retention aid, filter aid, and flocculant for wastewater treatment.
The above information is provided by Jiajinkou Zhengda Water Supply Material Factory in Gongyi City, highlighting the versatility and effectiveness of anionic polyacrylamide in various applications.
(Word count: 512)