To overcome the challenges of using polyacrylamide, please keep this guide handy

In numerous industries such as wastewater treatment, paper making, and oil extraction, polyacrylamide has become an indispensable “star agent” due to its excellent performance. However, in daily use, people often encounter various problems. Today, we will summarize common issues related to polyacrylamide to help you easily tackle any challenges you may face! I. Dissolution issue Slow dissolution rate Many users have reported that polyacrylamide takes a long time to dissolve. This is mainly due to its long molecular chains that are entangled with each other. It is recommended to use an appropriate stirring speed, generally controlled between 60 – 200 rpm, to avoid breaking the molecular chains caused by high-speed stirring, which could affect the usage effect. Additionally, use clean tap water at room temperature for dissolution, as water temperature that is too high or too low can affect the dissolution rate. A water temperature of around 25℃ is suitable. Clumping occurs after dissolution Clumping occurring during dissolution may result from improper dosing methods, where the chemical is poured directly into water without being uniformly dispersed. The correct procedure involves slow and even addition, feeding the chemical gradually along the vortex created by agitation. This allows the chemical to disperse rapidly under the impact of the water flow, thereby preventing clumping. II. Issues with Usage Effectiveness Poor flocculation effect In wastewater treatment, the flocculation effect may sometimes prove unsatisfactory following the application of polyacrylamide. This may stem from an incorrect choice of chemical agent, as different types of polyacrylamide (anionic, cationic, non-ionic) are suited to varying water qualities and treatment scenarios. For instance, anionic polyacrylamide may yield superior results when treating acidic wastewater; while cationic polyacrylamide holds advantages for sludge dewatering. Furthermore, dosage is critical: insufficient quantities fail to achieve full flocculation, whereas excessive amounts may cause colloidal particles to restabilise, thereby diminishing flocculation efficiency. Consequently, optimal dosage must be determined through laboratory testing. The treated water is not clear Should the treated water remain turbid, beyond considering chemical selection and dosage, insufficient reaction time or inadequate mixing intensity may be contributing factors. Appropriately extending the reaction period allows chemicals to react fully with contaminants. Concurrently, adjusting mixing intensity is advisable: increasing agitation speed during the initial reaction phase promotes thorough mixing, whilst reducing speed later prevents floc breakage. III. Storage Issues Storage Period and Deterioration Polyacrylamide powder typically has a shelf life of approximately two years when stored in a dry, cool, and well-ventilated environment. However, if stored in humid conditions, the agent readily absorbs moisture and may form lumps, leading to a reduction in active ingredients and compromising its efficacy. Therefore, it is essential to store the agent in a sealed container to prevent exposure to damp air. Variations in results between different batches Even for polyacrylamide of the same specification, performance variations may occur between different batches. This is because subtle variations in factors such as raw material purity and reaction conditions during production can influence product characteristics. It is advisable to conduct small-scale trials before employing a new batch of chemical to ensure the desired treatment effect is achieved. IV. Safety and Environmental Protection Issues Is it harmful to the human body? Polyacrylamide itself is essentially non-toxic, but the residual monomer acrylamide is toxic. However, under normal usage conditions, provided there is no direct contact with skin, mouth, etc., the risk to human health is minimal. During handling, it is advisable to wear protective equipment such as gloves and masks to avoid inhaling dust. Handling after use Sludge or residues treated with polyacrylamide require appropriate disposal according to specific circumstances. Where classified as hazardous waste, disposal must comply with relevant environmental regulations to prevent secondary environmental contamination. Although polyacrylamide is highly effective, its daily application requires attention to detail and the correct resolution of various issues. We hope this article proves helpful in your use of polyacrylamide! The main products of flocculant manufacturer Xinhuan Water Treatment are: White polyaluminium chloride (food grade), drinking grade polyaluminium chloride, industrial grade polyaluminium chloride, anionic polyacrylamide, cationic polyacrylamide, nonionic polyacrylamide, petroleum recycling polyacrylamide, oil recovery polyacrylamide, polyacrylamide, polymer flocculant polymer flocculation coagulant, polymeric ferrous sulphate, polymerized iron and aluminium chloride, and other water treatment chemicals. Welcome customers to write to us to negotiate business! Tel/WhatsApp：86 19139972558 Email：Sunny@xhwtm.com Contact:Sunny