1. Coagulants 混凝剂

English: Coagulants neutralize the surface charge of colloidal and fine suspended particles in water, destabilize tiny particles so they can aggregate into micro-flocs. Widely used for raw water clarification, municipal sewage, industrial wastewater phosphorus removal and turbidity reduction. Typical products: PAC (Polyaluminium Chloride), Ferric Chloride, Aluminium Sulfate, PolyDADMAC. 中文：混凝剂中和水中胶体与微细悬浮物的表面电荷，破坏微粒稳定性，使其凝聚成微小矾花。用于原水净化、市政污水、工业废水除磷、降浊。代表产品：聚合氯化铝 PAC、三氯化铁、硫酸铝、聚二烯丙基二甲基氯化铵 PolyDADMAC。

2. Flocculants 絮凝剂

English: Flocculants are high-molecular polymers, mainly anionic, cationic and nonionic Polyacrylamide (PAM). They bridge micro-flocs into large, dense and fast-settling flocs. Applied in sludge dewatering, sedimentation tank clarification, ore wastewater, papermaking wastewater, oilfield water and solid-liquid separation. Custom compound flocculant packages are available for complex water quality. 中文：絮凝剂为高分子聚合物，主要分为阴离子、阳离子、非离子聚丙烯酰胺 PAM。通过架桥作用把微小矾花抱团成大而密实、沉降速度快的絮团。用于污泥脱水、沉淀池澄清、矿山废水、造纸废水、油田污水固液分离；可提供适配复杂水质的定制复配絮凝助剂包。

3. Scale Inhibitors 阻垢剂

English: Scale inhibitors disperse insoluble inorganic salts such as calcium carbonate, calcium sulfate and silicate. They suppress crystal precipitation and adhesion on pipeline, heat exchanger and boiler surfaces. Commonly used in cooling circulating water, RO reverse osmosis system, boiler water. Representative: ATMP, HEDP, PBTC, composite scale inhibitor. 中文：阻垢剂分散碳酸钙、硫酸钙、硅酸盐等难溶无机盐，抑制晶体析出、附着在管道、换热器、锅炉内壁。多用于循环冷却水、RO 反渗透纯水系统、锅炉给水。代表：ATMP、HEDP、PBTC、复配阻垢剂。

4. Corrosion Inhibitors 缓蚀剂

English: Corrosion inhibitors form a protective film on metal surface to isolate water medium, slow down electrochemical corrosion of carbon steel, copper and alloy pipelines. Usually compounded with scale inhibitors for circulating cooling water system. 中文：缓蚀剂在金属表面形成保护膜，隔离水体介质，减缓碳钢、铜、合金管路的电化学腐蚀；常与阻垢剂复配，用于循环冷却水系统。

5. Biocide / Algaecide 杀菌剂 / 灭藻剂

English: Biocides kill bacteria, microorganisms and algae in water, prevent slime and biofilm blockage inside cooling towers, RO membranes and pipelines. Divided into oxidizing biocide (sodium hypochlorite) and non-oxidizing biocide (isothiazolinone, glutaraldehyde). 中文：杀菌剂杀灭水体细菌、微生物、藻类，防止冷却塔、反渗透膜、管道内壁滋生粘泥、生物膜堵塞；分为氧化性（次氯酸钠）与非氧化性（异噻唑啉酮、戊二醛）两类。

6. pH Adjusting Agents pH 调节剂

English: pH adjusters control water acidity and alkalinity to meet optimal working window for coagulation, membrane system and biochemical tank. Alkali agents: Sodium Hydroxide, Lime, Soda Ash. Acid agents: Sulfuric acid, Hydrochloric acid. 中文：pH 调节剂调控水体酸碱度，保障混凝、膜系统、生化池处于最佳运行区间。碱性药剂：烧碱、石灰、纯碱；酸性药剂：硫酸、盐酸。

7. Defoamers (Water-based) 水性消泡剂

English: Water-based defoamers eliminate and suppress stable foam generated in aeration tanks, biochemical wastewater, sludge dewatering and circulating water. Avoid foam overflow and interfere with measurement sensors. Non-hazardous grade available. 中文：水性消泡剂消除并抑制曝气池、生化废水、污泥脱水、循环水产生的稳定泡沫，防止泡沫溢池、干扰仪表监测；可提供非危型产品。

8. Decolorizing Agents 脱色剂

English: Decolorizing agents target dye wastewater, printing & textile wastewater. They capture soluble dye molecules via charge neutralization and adsorption, reduce chroma, also assist COD removal. Mostly organic cationic polymer products. 中文：脱色剂针对染料、印染废水，依靠电荷中和与吸附捕捉可溶性染料分子，降低出水色度，同时辅助降低 COD，多为有机阳离子高分子产品。

9. Heavy Metal Capture Agents 重金属捕捉剂

English: Heavy metal trapping agents selectively chelate dissolved heavy metal ions (nickel, copper, lead, cadmium, chromium) in electroplating and chemical wastewater, form insoluble chelate precipitates to meet discharge standards. 中文：重金属捕捉剂选择性螯合电镀、化工废水中溶解态镍、铜、铅、镉、铬等离子，生成难溶螯合沉淀物，帮助废水达标排放。

10. Filter Aid / Sludge Conditioner 助滤剂 / 污泥调理剂

English: Sludge conditioners improve sludge structure, reduce sludge specific resistance, enhance dewatering performance for belt filter press and plate frame filter press. Reduce moisture content of sludge cake. 中文：污泥调理剂改善污泥结构、降低污泥比阻，提升带式压滤机、板框压滤机脱水效率，降低泥饼含水率。