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1. The use of phosphorus-free corrosion and scale inhibitors in circulating water should be combined with the water quality of the circulating cooling water system to determine the dosage, typically controlled between 10 and 30 ppm.
2. The product should be added continuously.
3. The product has good compatibility and can be used with oxidizing biocides, non-oxidizing biocides, and stripping agents.
4. The phosphorus-free corrosion and scale inhibitor is widely used in power generation, petrochemicals, steel, pharmaceuticals, oil and gas fields, and other industrial sectors.
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Recirculating Cooling Water Treatment Chemicals Manufacturers
Industrial Circulating Cooling Water System
Changzhou Sanming Jinghui's main business is the production and sales of water treatment chemicals, the design and construction of industrial circulating water systems, circulating water treatment scheme design, technology application, technology transfer, and general contracting services; sewage treatment engineering design, construction, and technology Application, general contracting services. It has made outstanding achievements in circulating water, wastewater treatment, reclaimed water reuse, energy conservation and emission reduction in domestic large and medium-sized petroleum, petrochemical, metallurgy, chemical, fertilizer, coal chemical, electric power and other industrial enterprises, and has a large number of stable employees in various industries. customer base. After more than 30 years of development, the water treatment general contracting technical service model currently has more than 50 customers in the power, steel, chemical industry, etc., serving more than 200 sets of circulating water systems, achieving results, and helping customers save energy, reduce emissions, and stabilize production. Make outstanding contributions. The products now in mass production include: organic phosphonic acids, polycarboxylic acids and sulfonate copolymers, corrosion inhibitors, corrosion and scale inhibitors, cleaning agents, pre-film agents, defoaming agents, bactericidal algaecides , flocculants, oil flocculants and other ten series, with more than 100 product varieties of water treatment chemicals.
Our company produces a variety of customized chemicals that can be used in circulating cooling water systems. Industries involved in circulating water systems: such as cooling water systems in power plants, steel plants, chemicals, petrochemicals, paper mills, waste incineration plants, pharmaceutical plants, and textile printing and dyeing plants. Different industries have different chemical solutions that prevent corrosion and scale formation on metal surfaces in water systems. Traditional corrosion and scale inhibitors usually contain phosphate components, but due to the improvement of environmental protection requirements, more and more companies are turning to the use of phosphorus-free corrosion and scale inhibitors. We produce phosphorus-free and low-phosphorus products with various choices. Pay attention to all The dosage of chemicals should be determined based on the water quality of the circulating cooling water system.
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BENEFITS & FEATURES
View MoreProduct Code SM-D-05BW
Appearance Light yellow to brownish yellow transparent uniform liquid
Active matter content, % ≧32.0
pH value (1% aqueous solution) 2～3
Density (20℃), g/cm3 ≧1.10
Total phosphorus content (in terms of PO43-), % ≦2.00
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BENEFITS & FEATURES
1. The use of this product in circulating water should be combined with the water quality of the circulating cooling water system to determine the dosage, typically controlled between 8 and 20 ppm.
2. The product should be added continuously.
3. The product has good compatibility and can be used with oxidizing biocides, non-oxidizing biocides, and stripping agents.
4. The product is widely used in power generation, petrochemicals, steel, pharmaceuticals, oil and gas fields, and other industrial sectors.
View MoreProduct Code SM-D-05Q
Appearance Light yellow to brownish yellow transparent and homogeneous liquid
Active matter content, % ≧20.0～32.0
pH value (1% aqueous solution) 2～5
Density (20℃), g/cm3 ≧1.10
Total phosphorus content (in terms of PO43-), % 2.00～6.80
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BENEFITS & FEATURES
1. The scale dispersant for circulating water is widely used in industrial circulating water treatment, chemical cleaning and pre-filming, and oil field water injection treatment systems.
2. For circulating water treatment, the dosage should be determined based on the water quality of the circulating cooling water system, typically controlled between 15 and 40 ppm, with continuous addition. It can be used with corrosion and scale inhibitors, oxidizing biocides, non-oxidizing biocides, and stripping agents.
3. For chemical cleaning and pre-filming of circulating water systems, the dosage should be determined based on the process and water quality, typically controlled between 80 and 100 ppm, with shock dosing.
4. For oil field water injection treatment, the dosage is generally controlled between 10 and 50 mg/L based on the injection water volume, with continuous addition.
View MoreProduct Code SM-3210C
Appearance Colourless to light yellow transparent homogeneous liquid
Active matter content, % ≧30.0
pH value (1% aqueous solution) ≦3.5
Density (20℃), g/cm3 1.05～1.15
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BENEFITS & FEATURES
1. The use of the scale inhibitor for circulating water should be combined with the water quality of the circulating cooling water system to determine the dosage, typically controlled between 8 and 20 ppm.
2. The product should be added continuously.
3. The product has good compatibility and can be used with oxidizing biocides, non-oxidizing biocides, and stripping agents.
4. The product is widely used in power generation, petrochemicals, steel, pharmaceuticals, oil and gas fields, and other industrial sectors.
View MoreProduct Code SM-D-05A
Appearance Light yellow to brownish yellow transparent and homogeneous liquid
Active matter content, % ≧20.0
pH value (1% aqueous solution) 10.0～12.0
Density (20℃), g/cm3 ≧1.05
Total phosphorus content (in terms of PO43-), % ≦2.00
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BENEFITS & FEATURES
- The use of circulating water corrosion inhibitor should be combined with the circulating cooling water system water quality, according to the water quality to determine the dosage of the agent, usually the dosage of the agent can be controlled in the range of 5 ~ 15ppm;
- The dosage method of this product is continuous dosage;
- The product has good compatibility and can be used simultaneously with oxidative bactericide, non-oxidative bactericide, stripping agent and other agents;
- The product is widely used in power generation, petrochemical, iron and steel, medicine, oil and gas fields and other industrial fields.
View MoreProduct Code SM-D-05B
Appearance Light yellow to brownish yellow transparent and homogeneous liquid
Active matter content, % ≧20.0
pH value (1% aqueous solution) 2±1.5
Density (20℃), g/cm3 ≧1.05
Total phosphorus content (in terms of PO43-), % ≦0.50
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BENEFITS & FEATURES
1. The use of closed-loop water corrosion inhibitors should be combined with the water quality of the circulating cooling water system to determine the dosage, typically controlled between 30 and 100 ppm.
2. The product should be added continuously, based on the amount of wastewater discharged.
3. The product has good compatibility and can be used with biocides and other agents.
4. It is widely used in power generation, petrochemicals, steel, pharmaceuticals, oil and gas fields, and other industrial sectors.
View MoreProduct Code SM-D-05C
Appearance Transparent yellow homogeneous liquid
Active matter content, % 20.0～25.0
pH value (1% aqueous solution) 2±1.5
Density (20℃), g/cm3 ≧1.10
Total phosphorus content (in terms of PO43-), % ≦0.50
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BENEFITS & FEATURES
1. The solid active bromine biocide and algaecide is widely used in industrial circulating water systems, once-through cooling water systems, oilfield injection water, and paper mill wastewater treatment.
2. The product should be added using a shock dosing method.
3. Initial shock dosing should be 20-40 mg/L, followed by shock dosing every 3-7 days at 5-25 mg/L, maintaining a residual chlorine level of 0.1-1.0 mg/L for 2-4 hours.
4. The product has good compatibility and can be used with corrosion and scale inhibitors, non-oxidizing biocides, and stripping agents.
View MoreProduct Code SM-991Y
Appearance White powder or granule
Active matter content, % ≧40.0
pH value (1% aqueous solution) Weak acid
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BENEFITS & FEATURES
1. The non-oxidizing biocide is commonly used as a biocide in industrial circulating water systems and wastewater treatment, and as a mildew inhibitor in paper and paint production processes.
2. The product should be added using a shock dosing method.
3. When used as a slime stripping agent, the dosage should be controlled between 150-300 mg/L. When used as a biocide, the dosage should be 50-100 mg/L, added every 3-7 days depending on the level of bacteria and algae. It should not be used with chlorine-based oxidizing biocides but can be used with corrosion and scale inhibitors.
View MoreProduct Code SM-991F
Appearance Light yellow or light blue-green transparent and homogeneous liquid
Active matter content, % 1.5～2.5
pH value (1% aqueous solution) 2.0～5.0
Density (20℃), g/cm3 1.02-1.06
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BENEFITS & FEATURES
1. This product is commonly used as a biocide and algaecide in industrial circulating water systems and as a biocide in oil and gas gathering pipelines.
2. The product should be added using a shock dosing method.
3. When alternating with oxidizing biocides, it should be added 1-2 times per month at a dosage of 50-100 mg/L, calculated based on the system's water volume, and added to the collection tank or rapid flow area of the suction well.
4. The product may produce foam during use, so an appropriate amount of defoamer can be added as needed.
View MoreProduct Code SM-991N
Appearance Light yellow transparent viscous homogeneous liquid
Active matter content, % 25.0～44.0
pH value (1% aqueous solution) 6.0～8.0
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BENEFITS & FEATURES
1. The antifoam agent is suitable for defoaming treatment in chemical industry, food production, and industrial wastewater and circulating water systems.
2. The product should be added using a shock dosing method.
3. It can be sprayed directly onto the surface of the foaming liquid or pre-mixed into the foaming medium to prevent foam formation, with a typical dosage of 50-100 mg/L.
View MoreProduct Code SM-3210Y
Appearance Milky white uniform viscous liquid
Active matter content, % 10.0～15.0
Density (20℃), g/cm3 0.95～1.10
Reverse Osmosis Water Treatment System
Reverse osmosis water treatment system is an efficient water treatment technology commonly used in drinking water, industrial water, wastewater treatment and other fields. It separates solutes and solvents in water through a semipermeable membrane, thereby removing dissolved solids, ions, macromolecular organic matter, etc., and producing high-purity water. Our company produces and provides a variety of chemicals that can effectively help protect and clean the reverse osmosis membrane, ensure the stable operation of the reverse osmosis system and extend the service life of the membrane.
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BENEFITS & FEATURES
1. The use of the RO membrane-specific scale inhibitor should be based on water quality and system process conditions to determine the dosage, typically controlled between 3 and 5 ppm, with continuous dosing.
2. The following formula can be used to calculate the volume of SM-3210R standard solution to be added to the dosing tank:U=Q×a×V/1000×ρ×X
Where:
U is the volume of standard solution to be added (L)
Q is the RO feed water flow rate (T/h)
a is the dosage of the agent (ppm, g/T) (standard solution)
V is the effective volume of the dosing tank (L)
ρ is the density of the standard solution (g/L)
X is the actual output of the dosing metering pump (L/h)
1000 is the unit conversion factor (g/kg)
View MoreProduct Code SM-3210 membrane scale inhibitor
Appearance Transparent and homogeneous amber-coloured liquid
Proportion 1.20±0.05
pH value (1% aqueous solution) 1.5～2.5
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BENEFITS & FEATURES
1. The use of the RO membrane-specific non-oxidizing biocide should be based on water quality and system process conditions to determine the dosage.
2. For routine operation, the dosage is typically controlled between 3 and 8 ppm, with continuous dosing.
3. This product can also be used during equipment cleaning, with a concentration of 20%, alternating between circulation and soaking.
View MoreProduct Code SM-991F-RO
Appearance Pale blue-green transparent homogeneous liquid
Proportion ≧1.02
pH value (1% aqueous solution) ≦7
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BENEFITS & FEATURES
1. The use of this product should be based on system operating conditions, considering water production, system pressure difference, and desalination rate.
2. Our company can provide cleaning plans based on operating conditions, and the usage and dosage of the cleaner can refer to the corresponding technical plan.
3. The concentration and application temperature of the cleaning solution depend on the type and amount of system deposits. Under the guidance of the cleaning plan, the typical dilution ratio is 1-3% of the entire cleaning system volume (usually 1:45), including the cleaning tank, connecting pipes, filters, pressure vessels, and membranes.
View MoreProduct Code SM-3210S
Appearance Transparent and homogeneous amber-coloured liquid
Proportion 1.10～1.20
pH value (1% aqueous solution) 1.0～3.0
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BENEFITS & FEATURES
1. The use of the RO membrane-specific alkaline cleaner should be based on system operating conditions, considering water production, system pressure difference, and desalination rate.
2. Our company can provide cleaning plans based on operating conditions, and the usage and dosage of the cleaner can refer to the corresponding technical plan.
3. The concentration and application temperature of the cleaning solution depend on the type and amount of system deposits. Under the guidance of the cleaning plan, the typical dilution ratio is 1-3% of the entire cleaning system volume (usually 1:45), including the cleaning tank, connecting pipes, filters, pressure vessels, and membranes.
View MoreProduct Code SM-3210J
Appearance Transparent and homogeneous amber-coloured liquid
Proportion 1.10～1.20
pH value (1% aqueous solution) 10.0～13.0
Catalog Of Water Treatment Related Chemicals
Download Catalog
| System/Use | Product Name | Technical Parameter | Packing |
| Coagulants/Flocculants | PAC | Industrial grade/content: ≥ 28% Drinking water level/content: ≥ 30% |
25kg plastic bag woven bag |
| Al₂(SO₄)₃ | Solid particles or flakes/content: 16.5% | 25kg plastic bag woven bag | |
| Coagulant aid | APAM | Anionic/white or slightly yellow particles/6 million to 18 million molecular weight/solid content: ≥ 88.5%/hydrolysis degree: 24.0 to 28.0% | 25kg plastic bag woven bag |
| CPAM | Cationic/white or slightly yellow particles or powder/Molecular weight: ≥ 6 million/Ionicity: 40-50%/Solid content: ≥ 88% | 25kg plastic bag woven bag | |
| Big brown chemicals | CH6N4O | Boiler deoxidizer/solid/content: 98% min | 25kg cardboard drum/5kg cardboard box |
| NaHSO₃ | Reverse osmosis reducing agent/solid white crystalline powder/ Main content (calculated as SO2): 64.0~67.0% |
25kg plastic bag woven bag | |
| HCl | Meet the national standard GB320 | Conventional is ton barrels, customizable | |
| H2SO4 | Meet the national standard GB/T534 | Conventional is ton barrels, customizable | |
| Alkali (solid/liquid) | Meet national standards GB/T209 or GB/T11199 | Solid standard is 25kg plastic bag woven bag The standard liquid is ton barrels, which can be customized | |
| NH3·H2O | Industrial grade: meets HG/T 5353 Reagent level: Meets GB/T631 |
Conventional is ton barrels, customizable | |
| Chemical reagent | Chemical reagent | Chemical grade, analytical grade, premium grade, reference grade, etc | Bottled, classified according to reagents |
| High purity gas/standard gas | High purity gas/standard gas | Various types of pure gas, mixed gas/purity up to 99.999% | 8L, 10L, 40L and other steel cylinders |
Since 1991
Changzhou SanmingJingHui Environmental Protection Technology Co., Ltd.
Changzhou SanmingJingHui Environmental Protection Technology Co., Ltd. (formerly Changzhou Sanming Chemical Co., Ltd.) is China recirculating cooling water treatment chemicals manufacturers and recirculating cooling water treatment chemicals factory, a high-tech, environmentally friendly and energy-saving water treatment agent professional enterprise integrating scientific research and development, production and sales, and technical services. It was founded in 1991.
The company is located in the central area of the Yangtze River Delta, close to the Shanghai-Nanjing Railway and the Beijing-Hangzhou Grand Canal, and is located in Hengshanqiao Town, the middle intersection of the Shanghai-Nanjing Expressway. It is only half an hour away from Changzhou Civil Aviation Airport and has convenient transportation. It has fixed assets of more than 18 million yuan, more than 20 scientific researchers, and 25% of employees have obtained various professional and technical titles.
Our Proven Management System
As a professional water treatment solutions company, we can provide support at every level our customers need, including factories, R&D technical teams, local sales branches, etc.
Media
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The Reverse Osmosis Membrane Special Non-Oxidizing Biocide is a powerful tool against microbial fouling, but like any other component in your system, ...
READ MORE -
Reverse osmosis (RO) technology is widely used in water treatment due to its advantages, such as stable desalination rates, small footprint, automatio...
READ MORE -
Reverse Osmosis (RO) systems are critical for producing clean, purified water, and one of the biggest challenges they face is biofouling—microbial gro...
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The Reverse Osmosis Membrane Special Non-Oxidizing Biocide has proven to be an effective solution in controlling microbial growth and preventing biofo...
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In many industrial applications, closed-loop water systems often encounter water with high mineral content, which can lead to scaling and corrosion is...
READ MORE
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- No.210, Qianjie Rd, Hengshanqiao Town, Changzhou Economic Development Zone, Jiangsu Prov, China
- +86-18015080980 / +86-519-88612610
- [email protected]
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