01-What is a polyamine (epichlorohydrin dimethylamine copolymer) water purifier? What is its basic principle?
Answer:Polyamine (epichlorohydrin dimethylamine copolymer) water purifier is a cationic polymer. It mainly purifies water quality through the principle of charge neutrality and adsorption bridging. Pollutants such as suspended particles and colloids in water usually carry negative charges. A large number of positively charged groups on the molecular chain of polyamine water purification agents can undergo charge neutralization reactions with these negatively charged pollutants, destroying their stability and promoting them. Gather together. At the same time, polyamines have long molecular chains, which can play a bridging role between particles, connect multiple small particles into large flocs, accelerate precipitation, and achieve water purification. The relevant principles are detailed in the "Water Treatment Agents Handbook". Elaborate.
02-What types of water can polyamine water purifier treat? For example, industrial wastewater, domestic sewage or drinking water?
Answer:Polyamine water purifier has a wide range of applications. In terms of industrial wastewater treatment, it has good treatment effect on wastewater with high turbidity, high chroma, and containing organic matter and heavy metal ions generated by printing and dyeing, papermaking, chemical and other industries. For example, the decoloration rate of printing and dyeing wastewater can reach more than 95%, and the removal rate of CODcr is 50%-70%, which has been verified in many academic studies such as "Synthesis of polyamine flocculants and their potential use in treating dye wastewater"; For domestic sewage, suspended solids and organic matters can be effectively removed and sewage turbidity can be reduced; during the drinking water pretreatment stage, impurities such as colloid and algae in the water can be removed, water quality can be improved, and the efficient operation of subsequent purification processes can be ensured.
03-What is the appearance and state of a polyamine water purifier? What are the requirements for storage conditions?
Answer:Polyamine water purifying agents are usually colorless to light yellow transparent liquids. During storage, it is required to be stored in a sealed manner and should be placed in a dry, cool and ventilated warehouse to avoid direct sunlight and high temperature environment. The storage temperature is recommended to be controlled at 5 ℃-35 ℃. If the temperature is too high, it may lead to product degradation and performance degradation. If the temperature is too low, crystallization and solidification may occur, which will affect use. The shelf life of the product is generally 6 months (below 25 ℃). Storage as required during the shelf life can ensure stable product performance.
04-Do you need special equipment when using polyamine water purifier? What is the investment method?
Answer:The use of polyamine water purifier does not necessarily require special equipment, but can be selected based on the amount of water treated and water quality. For small amounts of water, a simple intermittent dosing method can be used, and a manual metering container can be used to intermittently add the diluted polyamine water purifier to the water to be treated; for large amounts of water, continuous dosing is recommended, and a metering pump is required. The diluted polyamine water purifier (recommended dilution ratio is 1:5 - 1:10, diluted with clean water or recycled water after treatment) is continuously injected into the water treatment system at the set flow rate. No matter which method is used, it is necessary to ensure accurate control of the dosing amount to avoid affecting the treatment effect due to excessive or insufficient dosing.
05-Compared with common water purification agents such as polyacrylamide, what are the unique characteristics of polyamine water purification agents?
Answer:Compared with polyacrylamide, polyamine water purification agents have three unique advantages. First, the charge density is higher. The charge density of polyamines can reach 2.5 - 3.0meq/g, and the charge density of polyacrylamides is generally 1.5 - 2.0meq/g, which makes polyamines have stronger adsorption capacity for negatively charged pollutants., and the flocculation speed is 20%-30% faster. Second, the pH has a wider range of application. Polyamines can function efficiently under water conditions of pH 4.0 - 10.0. Polyacrylamide is more suitable for neutral and alkaline water (pH 6.0 - 8.5). Polyamines reduce the complex operation of adjusting water pH. Third, in terms of biological safety, after testing, residual amine substances in water after polyamine-treated are ≤ 0.1 mg/L, which is far lower than the drinking water hygiene standard (≤ 0.5 mg/L), and can be used for drinking water pretreatment. However, polyacrylamide is limited in the application of drinking water treatment due to monomer residue problems.
06-Compared with traditional water purification agents, how much can New Haitian Company's polyamine water purification agents reduce water treatment costs for enterprises?
Answer:Compared with traditional water purification agents such as polyaluminum chloride and polyacrylamide, our polyamine water purification agent has the core advantages of "low dosage and high treatment efficiency". In typical scenarios such as industrial circulating water and municipal sewage, the dosing amount can be reduced by 30%-50%, and the cost of subsequent sludge dehydration treatment can be reduced (sludge production is reduced by 20%-30%). Taking a company that processes 10,000 tons of sewage per day as an example, the comprehensive water treatment cost can be reduced by 12,000 - 20,000 yuan per month. Specific data can provide a customized cost calculation plan based on your company's water quality parameters.
07-What is the production capacity of New Haitian Company's polyamine water purifier? Can long-term stable supply be guaranteed and the risk of supply interruption be avoided?
Answer: Our company has a professional production line for polyamine water purification agents with a production capacity of 15000 tons. It has passed REACH certification and NSF certification, which can meet the emergency order demand of 500 tons per time. At the same time, we have established a full-chain supply chain management system of "raw material-production-warehousing-logistics", and signed long-term strategic cooperation agreements with core raw material suppliers such as epichlorohydrin and dimethylamine. We have sufficient raw material reserves and can provide your company with "monthly scheduled and quarterly guaranteed" stable supply services, and the risk of interruption of supply is very low.
08-What is the range of key indicators such as appearance, solid content, and pH value of your company's polyamine water purifier? How to adapt to the treatment needs of different water quality?
Answer: The core indicators of our company's polyamine water purifier are strictly controlled at: molecular weight 80,000 - 150,000 Da, solid content ≥50±1%, pH value4-7、Viscosity:100-6000。For different water quality, we provide 3 customized models: ① Low molecular weight type (suitable for high-turbidity industrial wastewater, rapid flocculation and sedimentation); ② Medium molecular weight type (suitable for municipal sewage, taking into account turbidity removal and decoloration); ③ High molecular weight type (suitable for low-turbidity drinking water pretreatment to improve filtration efficiency), the optimal model can be recommended based on your company's water quality test reports (such as turbidity, COD, suspended matter concentration).
09-Will the polyamine water purifier produce harmful substances during use and affect the environment or human health?
Answer: No. Polyamine water purifier itself is an environmentally friendly water treatment agent and will not produce harmful substances under normal use doses. Its degradation products are mainly small molecule amines, carbon dioxide and water, and have no secondary pollution to the environment. From the perspective of human health, when water treatment meets discharge standards, the concentration of polyamines and related degradation products remaining in water is extremely low and will not cause harm to human beings. Its safety has undergone strict toxicological tests and practical application verification., in line with relevant national environmental protection and health standards, such as the "Hygiene Standard for Drinking Water"(GB 5749 - 2022) clearly stipulates the limits of related substances that may remain in drinking water, and the polyamine water purifier fully meets the standards.
10-Xinhaitian CompanyDo you provide technical support and after-sales service? If problems arise during use, how to solve them?
Answer: We provide "full-cycle technical services": ① Pre-sales: free door-to-door testing of water quality and providing small and pilot test plans; ② In sales: Send technicians to guide the installation and debugging of dosing equipment on site to ensure the first use effect; ③ After-sales: Establish a 24-hour technical response mechanism. If problems such as poor flocculation effect and fluctuations in water outlet indicators occur, the technician will provide a solution within 24 hours. If on-site treatment is needed, they will arrive at the customer's site (nationwide) within 72 hours.
