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Product Introduction
Calcium Hydroxide ---Sewage Treatment Special
—— Efficient pH Adjustment · Sewage Purification · Cost Reduction, the Preferred Reagent for Industrial and Municipal Sewage Treatment
Calcium hydroxide (Ca(OH)₂), commonly known as slaked lime, is a white powdery inorganic compound with CAS No. 1305-62-0 and a molecular weight of 74.09 g/mol. It is strongly alkaline (the pH value of 0.01 mol/L aqueous solution is 12.4), slightly soluble in water, and its solubility decreases with increasing temperature. It has excellent neutralization, precipitation and coagulation properties, and is the core reagent for adjusting wastewater pH value and purifying water quality in the field of sewage treatment. It is widely used in the treatment processes of various industrial wastewater and municipal sewage, balancing treatment efficiency and economy, helping enterprises achieve environmentally compliant discharge.
Application Scenarios
This product is suitable for various sewage scenarios, especially for acidic wastewater and high-pollution industrial wastewater, with strong adaptability. It has been widely used in six major high-pollution industries, including:
| Application Industry | Core Pollutants | Treatment Effect |
| Electroplating Industry | Strong acid, Cu⊃2;⁺/Ni⊃2;⁺/CN⁻ | Triple effect of cyanide breaking, heavy metal precipitation and neutralization, heavy metal <0.1mg/L, cost reduced by 50% |
| Iron and Steel/Mining Industry | pH 2–4, Fe⊃2;⁺/Mn⊃2;⁺/SO₄⊃2;⁻ | Pre-neutralization to prevent corrosion, co-precipitation of iron and manganese, service life of pipe network extended by 5-10 years |
| Fluorine Chemical Industry | F⁻ 1000–3000mg/L | F⁻<5mg/L, cost is 20% of the resin method |
| Paper Industry | High alkalinity, lignin, fiber | Neutralize alkalinity, COD reduced by 40%, flocculation speed increased by 2 times |
| Municipal Sewage | High phosphorus, pathogenic bacteria, perishable sludge | Chemical phosphorus removal, sludge conditioning, effluent TP <0.5mg/L |
| Food Processing | Oil, organic acid, suspended solids | Demulsification and oil removal, oil removal rate >80%, biogas production increased by 25% |
In addition, it can also be used in scenarios such as acid mine water, fluoride-containing wastewater in the photovoltaic industry, and raw water pretreatment in waterworks, realizing water quality compliance and resource recycling.
Product Advantage
✅ Efficient and Fast: Fast reaction speed, pH adjustment can be completed in 10-30 minutes, high removal efficiency of heavy metals, phosphorus, fluorine and other pollutants, and stable treatment effect;
✅ Cost-Effective: Easy-to-obtain raw materials and mature production process. Compared with similar reagents, it can reduce the sewage treatment cost by 30%-50%, suitable for large-scale applications;
✅ Safe and Environmentally Friendly: Lower corrosiveness than sodium hydroxide, controllable operation risk, no secondary pollution. The generated sludge has a dense structure and good dewatering performance, which can realize resource utilization;
✅ Stable Quality: Produced by automatic production line,经过 multiple tests, high purity, low impurities, all indicators meet national standards, and the difference between batches is small;
✅ Wide Adaptability: Suitable for various industrial wastewater and municipal sewage, balancing pH adjustment and multiple pollutant removal, no need for additional transformation of treatment equipment.
FAQ
Q: Are you a trading company or a factory?
A: We are a factory.
Q: What are your main products?
A: Calcium oxide, Calcium hydroxide, Light calcium carbonate, Heavy calcium carbonate，Nano calcium carbonate
Q: Are samples free? How long is delivery?
A: 5–10kg samples are free (freight negotiable). Regular stock delivered within 48 hours; customized orders in 7–15 days.
Q: Where is your factory?
A: Our factory is located in Changshu, Jiangsu Province, welcome to visit us at any time.
Q: Is there any possible to use my appointed lable or package?
A: Yes, If need, we would like to use lable or package according to your requirement.
Q: How do I contact you to purchase a product?
A: Below is our contact information, please feel free to contact us at any time.
