Industrial and municipal wastewater facilities face a persistent challenge: removing residual chlorine and chloramines before discharge to protect aquatic ecosystems and comply with tightening regulations. Bisulfite for dechlorination for wastewater has emerged as the most widely adopted chemical solution, and at the heart of this process is sodium metabisulfite (Na2S2O5) – a dry, easily handled source of bisulfite ion. This guide explores why sodium metabisulfite dominates the market, how it works, how to dose it correctly, and what procurement managers need to know when sourcing from China.
In wastewater treatment, chlorine is used as a disinfectant to kill pathogens. However, residual free chlorine and combined chloramines can be toxic to fish and invertebrates even at concentrations below 0.02 mg/L. In the United States, the EPA’s National Pollutant Discharge Elimination System (NPDES) often sets total chlorine residual limits as low as 0.01–0.02 mg/L for receiving waters. Similarly, EU directives and local regulations worldwide mandate dechlorination before any effluent reaches a natural water body.
Chlorine reacts with organic matter to form trihalomethanes (THMs) and other disinfection by-products. Chronic exposure can kill fish, reduce reproduction, and disrupt entire ecosystems. Moreover, chlorine in effluent can corrode downstream piping and interfere with sensitive industrial processes when water is reused. This makes effective, verifiable dechlorination a non-negotiable part of responsible water management.
Understanding how sodium metabisulfite neutralizes chlorine is crucial for correct application. Sodium metabisulfite (Na2S2O5) is a white crystalline powder that dissolves in water to form sodium bisulfite (NaHSO3):
Na2S2O5 + H2O → 2 NaHSO3
The bisulfite ion (HSO3−) then reacts with free chlorine (hypochlorous acid/hypochlorite ion) rapidly and irreversibly:
NaHSO3 + HOCl → NaHSO4 + HCl
This stoichiometry shows that 1 mole of sodium metabisulfite (190.1 g) can neutralize 2 moles of chlorine (2 × 35.45 g as Cl2). In practice, a slight excess (10–20%) is used to ensure complete removal, especially when chloramines are present because the reaction with monochloramine is slower and requires a longer contact time.
Liquid sodium bisulfite solutions (around 38–40% concentration) are commonly used, but they present challenges: limited shelf life (oxidizes to sulfate in storage), higher transportation cost due to water weight, and freezing risk in cold climates. Sodium metabisulfite, as a granular or powdered solid, remains stable for years when kept dry, reduces freight cost per active chlorine removal capacity, and allows water treatment plants to prepare fresh solution on-site as needed. This makes bisulfite for dechlorination for wastewater from metabisulfite the preferred choice for many large-scale and remote treatment facilities.
The theoretical dosage is 1.46 parts sodium metabisulfite per 1 part of chlorine (as Cl2). However, real-world dosing must account for:
For a plant treating 10,000 m³/day with 5 mg/L total chlorine residual, the daily metabisulfite demand at 1.6:1 ratio is:
10,000 m³/day × 5 g/m³ × 1.6 = 80 kg/day.
Sodium metabisulfite can be fed as a prepared solution (typically 10–20% w/w) using metering pumps, or as dry granules via volumetric screw feeders directly into a contact tank with mixing. Solution feeding offers more precise control and faster reaction, while dry feeding reduces equipment footprint but requires careful dust control and dissolution. Most industrial plants prefer solution preparation from the dry product to leverage the cost benefits of bulk metabisulfite.
When sodium metabisulfite contacts moisture, it slowly releases sulfur dioxide (SO2) gas, which can cause respiratory irritation. Proper storage in a cool, dry, well-ventilated area away from acids and oxidizers is essential. Operators should wear dust masks, goggles, and gloves. Never attempt how to make sodium metabisulfite at home for water treatment – industrial manufacturing requires controlled reaction of sodium carbonate or sodium hydroxide with sulfur dioxide under strict conditions, and mishandling can lead to hazardous gas release. Only use industrial-grade product from certified manufacturers like Weifang Hailei Fine Chemical.
| Dechlorination Agent | Form | Relative Cost per lb Cl2 Removed | Reaction Speed | Key Considerations |
|---|---|---|---|---|
| Sodium Metabisulfite (dry) | Granular / Powder | Low | Instant (free Cl); minutes (chloramines) | Stable storage, cost-effective for large volumes |
| Sodium Bisulfite Solution | Liquid 38–40% | Moderate | Instant | Higher freight, short shelf life |
| Sulfur Dioxide Gas | Compressed gas | Low | Fast | Hazardous gas handling, regulatory constraints |
| Activated Carbon | Solid granular | High | Moderate | Catalytic, large footprint, regular replacement needed |
| Hydrogen Peroxide | Liquid 35–50% | High | Moderate | Oxidizer, can release O2, not suitable for all effluents |
For the vast majority of municipal and industrial wastewater plants, sodium metabisulfite provides the optimum balance of low cost, operational simplicity, and reliability. It is exceptionally effective as a bisulfite for dechlorination for wastewater when sourced with consistent quality from established producers.
Sodium metabisulfite is manufactured in different grades. While food grade (purity ≥98%, heavy metal content tightly controlled) is used as a preservative in food processing and as an antioxidant excipient in pharmaceuticals—you may wonder what is sodium metabisulfite in paracetamol, where it prevents oxidation of the active ingredient—it is far more expensive than necessary for water treatment. Industrial-grade sodium metabisulfite with purity of 97–98% and low iron content (<0.002%) is perfectly suited for dechlorination. The key technical parameters for a wastewater dechlorination buyer are:
Using food grade simply adds unnecessary cost without any process benefit. Weifang Hailei Fine Chemical supplies both industrial-grade and food-grade sodium metabisulfite based on customer needs, and our technical team can help you confirm the ideal specification for your bisulfite for dechlorination for wastewater application.
Many international buyers track the price of sodium metabisulfite in China closely, as China dominates global production due to abundant raw material (soda ash and sulfur) and world-scale manufacturing capacity. Typical bulk FOB Qingdao prices for industrial-grade metabisulfite 97% min have fluctuated between $250 and $450 per metric ton in recent years, driven by:
To secure consistent pricing and supply, we recommend:
For the most up-to-date price of sodium metabisulfite in China and a tailored quotation for your wastewater facility, contact our sales team.
China accounts for more than 60% of the world’s sodium metabisulfite production capacity, with established chemical clusters in Shandong, Sichuan, and Hubei provinces. Global benefits of sourcing from a reputable Chinese manufacturer like Weifang Hailei Fine Chemical include:
When implementing bisulfite for dechlorination for wastewater, the reliability of your chemical supply chain is critical. Partnering with an experienced exporter eliminates the risks of inconsistent product and late shipments.
Use the following checklist when evaluating sodium metabisulfite suppliers for your wastewater dechlorination program:
Absolutely not. How to make sodium metabisulfite at home is a question we see online, but industrial production requires reacting sulfur dioxide gas with an alkaline solution under controlled temperature and pressure. The SO2 is toxic and corrosive, and without proper scrubbing systems, it poses serious health and environmental risks. Only use factory-produced, quality-controlled sodium metabisulfite from a trusted chemical supplier.
In pharmaceutical formulations, sodium metabisulfite can act as an antioxidant to prevent the oxidation of active ingredients like paracetamol (acetaminophen). Its ability to scavenge oxygen helps maintain drug stability. This is a food/pharma-grade application, distinct from the industrial-grade product used in wastewater dechlorination.
In addition to bisulfite for dechlorination for wastewater, sodium metabisulfite is employed in gold mining for cyanide detoxification, in pulp and paper as a bleaching agent and “anti-chlor” after chlorine bleaching, in textile processing to neutralize residual chlorine on fabrics, and as a food preservative (E223) to inhibit microbial growth. Our product page offers more detail on these applications.
When stored in a cool, dry place (below 30°C, relative humidity < 70%) in sealed original packaging, industrial-grade sodium metabisulfite maintains its purity for at least 12 months. Avoid exposure to moisture, acids, and strong oxidizers. We recommend a FIFO inventory system to preserve activity.
Whether you are upgrading your dechlorination system or seeking a cost-effective bulk supplier, Weifang Hailei Fine Chemical delivers consistent-quality sodium metabisulfite tailored to your operational needs. Our technical team can help you calculate dosing, select the optimal grade, and navigate the import process. As a leading Chinese exporter with decades of experience, we are committed to supporting your water treatment goals with product you can trust.
Ready to discuss your requirements? Request a quote today and see why facilities worldwide rely on us for bisulfite for dechlorination for wastewater.
Industrial and municipal wastewater facilities face a persistent challenge: removing residual chlorine and chloramines before discharge to protect aquatic ecosystems and comply with tightening regulations. Bisulfite for dechlorination for wastewater has emerged as the most widely adopted chemical solution, and at the heart of this process is sodium metabisulfite (Na2S2O5) – a dry, easily handled source of bisulfite ion. This guide explores why sodium metabisulfite dominates the market, how it works, how to dose it correctly, and what procurement managers need to know when sourcing from China.
In wastewater treatment, chlorine is used as a disinfectant to kill pathogens. However, residual free chlorine and combined chloramines can be toxic to fish and invertebrates even at concentrations below 0.02 mg/L. In the United States, the EPA’s National Pollutant Discharge Elimination System (NPDES) often sets total chlorine residual limits as low as 0.01–0.02 mg/L for receiving waters. Similarly, EU directives and local regulations worldwide mandate dechlorination before any effluent reaches a natural water body.
Chlorine reacts with organic matter to form trihalomethanes (THMs) and other disinfection by-products. Chronic exposure can kill fish, reduce reproduction, and disrupt entire ecosystems. Moreover, chlorine in effluent can corrode downstream piping and interfere with sensitive industrial processes when water is reused. This makes effective, verifiable dechlorination a non-negotiable part of responsible water management.
Understanding how sodium metabisulfite neutralizes chlorine is crucial for correct application. Sodium metabisulfite (Na2S2O5) is a white crystalline powder that dissolves in water to form sodium bisulfite (NaHSO3):
Na2S2O5 + H2O → 2 NaHSO3
The bisulfite ion (HSO3−) then reacts with free chlorine (hypochlorous acid/hypochlorite ion) rapidly and irreversibly:
NaHSO3 + HOCl → NaHSO4 + HCl
This stoichiometry shows that 1 mole of sodium metabisulfite (190.1 g) can neutralize 2 moles of chlorine (2 × 35.45 g as Cl2). In practice, a slight excess (10–20%) is used to ensure complete removal, especially when chloramines are present because the reaction with monochloramine is slower and requires a longer contact time.
Liquid sodium bisulfite solutions (around 38–40% concentration) are commonly used, but they present challenges: limited shelf life (oxidizes to sulfate in storage), higher transportation cost due to water weight, and freezing risk in cold climates. Sodium metabisulfite, as a granular or powdered solid, remains stable for years when kept dry, reduces freight cost per active chlorine removal capacity, and allows water treatment plants to prepare fresh solution on-site as needed. This makes bisulfite for dechlorination for wastewater from metabisulfite the preferred choice for many large-scale and remote treatment facilities.
The theoretical dosage is 1.46 parts sodium metabisulfite per 1 part of chlorine (as Cl2). However, real-world dosing must account for:
For a plant treating 10,000 m³/day with 5 mg/L total chlorine residual, the daily metabisulfite demand at 1.6:1 ratio is:
10,000 m³/day × 5 g/m³ × 1.6 = 80 kg/day.
Sodium metabisulfite can be fed as a prepared solution (typically 10–20% w/w) using metering pumps, or as dry granules via volumetric screw feeders directly into a contact tank with mixing. Solution feeding offers more precise control and faster reaction, while dry feeding reduces equipment footprint but requires careful dust control and dissolution. Most industrial plants prefer solution preparation from the dry product to leverage the cost benefits of bulk metabisulfite.
When sodium metabisulfite contacts moisture, it slowly releases sulfur dioxide (SO2) gas, which can cause respiratory irritation. Proper storage in a cool, dry, well-ventilated area away from acids and oxidizers is essential. Operators should wear dust masks, goggles, and gloves. Never attempt how to make sodium metabisulfite at home for water treatment – industrial manufacturing requires controlled reaction of sodium carbonate or sodium hydroxide with sulfur dioxide under strict conditions, and mishandling can lead to hazardous gas release. Only use industrial-grade product from certified manufacturers like Weifang Hailei Fine Chemical.
| Dechlorination Agent | Form | Relative Cost per lb Cl2 Removed | Reaction Speed | Key Considerations |
|---|---|---|---|---|
| Sodium Metabisulfite (dry) | Granular / Powder | Low | Instant (free Cl); minutes (chloramines) | Stable storage, cost-effective for large volumes |
| Sodium Bisulfite Solution | Liquid 38–40% | Moderate | Instant | Higher freight, short shelf life |
| Sulfur Dioxide Gas | Compressed gas | Low | Fast | Hazardous gas handling, regulatory constraints |
| Activated Carbon | Solid granular | High | Moderate | Catalytic, large footprint, regular replacement needed |
| Hydrogen Peroxide | Liquid 35–50% | High | Moderate | Oxidizer, can release O2, not suitable for all effluents |
For the vast majority of municipal and industrial wastewater plants, sodium metabisulfite provides the optimum balance of low cost, operational simplicity, and reliability. It is exceptionally effective as a bisulfite for dechlorination for wastewater when sourced with consistent quality from established producers.
Sodium metabisulfite is manufactured in different grades. While food grade (purity ≥98%, heavy metal content tightly controlled) is used as a preservative in food processing and as an antioxidant excipient in pharmaceuticals—you may wonder what is sodium metabisulfite in paracetamol, where it prevents oxidation of the active ingredient—it is far more expensive than necessary for water treatment. Industrial-grade sodium metabisulfite with purity of 97–98% and low iron content (<0.002%) is perfectly suited for dechlorination. The key technical parameters for a wastewater dechlorination buyer are:
Using food grade simply adds unnecessary cost without any process benefit. Weifang Hailei Fine Chemical supplies both industrial-grade and food-grade sodium metabisulfite based on customer needs, and our technical team can help you confirm the ideal specification for your bisulfite for dechlorination for wastewater application.
Many international buyers track the price of sodium metabisulfite in China closely, as China dominates global production due to abundant raw material (soda ash and sulfur) and world-scale manufacturing capacity. Typical bulk FOB Qingdao prices for industrial-grade metabisulfite 97% min have fluctuated between $250 and $450 per metric ton in recent years, driven by:
To secure consistent pricing and supply, we recommend:
For the most up-to-date price of sodium metabisulfite in China and a tailored quotation for your wastewater facility, contact our sales team.
China accounts for more than 60% of the world’s sodium metabisulfite production capacity, with established chemical clusters in Shandong, Sichuan, and Hubei provinces. Global benefits of sourcing from a reputable Chinese manufacturer like Weifang Hailei Fine Chemical include:
When implementing bisulfite for dechlorination for wastewater, the reliability of your chemical supply chain is critical. Partnering with an experienced exporter eliminates the risks of inconsistent product and late shipments.
Use the following checklist when evaluating sodium metabisulfite suppliers for your wastewater dechlorination program:
Absolutely not. How to make sodium metabisulfite at home is a question we see online, but industrial production requires reacting sulfur dioxide gas with an alkaline solution under controlled temperature and pressure. The SO2 is toxic and corrosive, and without proper scrubbing systems, it poses serious health and environmental risks. Only use factory-produced, quality-controlled sodium metabisulfite from a trusted chemical supplier.
In pharmaceutical formulations, sodium metabisulfite can act as an antioxidant to prevent the oxidation of active ingredients like paracetamol (acetaminophen). Its ability to scavenge oxygen helps maintain drug stability. This is a food/pharma-grade application, distinct from the industrial-grade product used in wastewater dechlorination.
In addition to bisulfite for dechlorination for wastewater, sodium metabisulfite is employed in gold mining for cyanide detoxification, in pulp and paper as a bleaching agent and “anti-chlor” after chlorine bleaching, in textile processing to neutralize residual chlorine on fabrics, and as a food preservative (E223) to inhibit microbial growth. Our product page offers more detail on these applications.
When stored in a cool, dry place (below 30°C, relative humidity < 70%) in sealed original packaging, industrial-grade sodium metabisulfite maintains its purity for at least 12 months. Avoid exposure to moisture, acids, and strong oxidizers. We recommend a FIFO inventory system to preserve activity.
Whether you are upgrading your dechlorination system or seeking a cost-effective bulk supplier, Weifang Hailei Fine Chemical delivers consistent-quality sodium metabisulfite tailored to your operational needs. Our technical team can help you calculate dosing, select the optimal grade, and navigate the import process. As a leading Chinese exporter with decades of experience, we are committed to supporting your water treatment goals with product you can trust.
Ready to discuss your requirements? Request a quote today and see why facilities worldwide rely on us for bisulfite for dechlorination for wastewater.
Industrial and municipal wastewater facilities face a persistent challenge: removing residual chlorine and chloramines before discharge to protect aquatic ecosystems and comply with tightening regulations. Bisulfite for dechlorination for wastewater has emerged as the most widely adopted chemical solution, and at the heart of this process is sodium metabisulfite (Na2S2O5) – a dry, easily handled source of bisulfite ion. This guide explores why sodium metabisulfite dominates the market, how it works, how to dose it correctly, and what procurement managers need to know when sourcing from China.
In wastewater treatment, chlorine is used as a disinfectant to kill pathogens. However, residual free chlorine and combined chloramines can be toxic to fish and invertebrates even at concentrations below 0.02 mg/L. In the United States, the EPA’s National Pollutant Discharge Elimination System (NPDES) often sets total chlorine residual limits as low as 0.01–0.02 mg/L for receiving waters. Similarly, EU directives and local regulations worldwide mandate dechlorination before any effluent reaches a natural water body.
Chlorine reacts with organic matter to form trihalomethanes (THMs) and other disinfection by-products. Chronic exposure can kill fish, reduce reproduction, and disrupt entire ecosystems. Moreover, chlorine in effluent can corrode downstream piping and interfere with sensitive industrial processes when water is reused. This makes effective, verifiable dechlorination a non-negotiable part of responsible water management.
Understanding how sodium metabisulfite neutralizes chlorine is crucial for correct application. Sodium metabisulfite (Na2S2O5) is a white crystalline powder that dissolves in water to form sodium bisulfite (NaHSO3):
Na2S2O5 + H2O → 2 NaHSO3
The bisulfite ion (HSO3−) then reacts with free chlorine (hypochlorous acid/hypochlorite ion) rapidly and irreversibly:
NaHSO3 + HOCl → NaHSO4 + HCl
This stoichiometry shows that 1 mole of sodium metabisulfite (190.1 g) can neutralize 2 moles of chlorine (2 × 35.45 g as Cl2). In practice, a slight excess (10–20%) is used to ensure complete removal, especially when chloramines are present because the reaction with monochloramine is slower and requires a longer contact time.
Liquid sodium bisulfite solutions (around 38–40% concentration) are commonly used, but they present challenges: limited shelf life (oxidizes to sulfate in storage), higher transportation cost due to water weight, and freezing risk in cold climates. Sodium metabisulfite, as a granular or powdered solid, remains stable for years when kept dry, reduces freight cost per active chlorine removal capacity, and allows water treatment plants to prepare fresh solution on-site as needed. This makes bisulfite for dechlorination for wastewater from metabisulfite the preferred choice for many large-scale and remote treatment facilities.
The theoretical dosage is 1.46 parts sodium metabisulfite per 1 part of chlorine (as Cl2). However, real-world dosing must account for:
For a plant treating 10,000 m³/day with 5 mg/L total chlorine residual, the daily metabisulfite demand at 1.6:1 ratio is:
10,000 m³/day × 5 g/m³ × 1.6 = 80 kg/day.
Sodium metabisulfite can be fed as a prepared solution (typically 10–20% w/w) using metering pumps, or as dry granules via volumetric screw feeders directly into a contact tank with mixing. Solution feeding offers more precise control and faster reaction, while dry feeding reduces equipment footprint but requires careful dust control and dissolution. Most industrial plants prefer solution preparation from the dry product to leverage the cost benefits of bulk metabisulfite.
When sodium metabisulfite contacts moisture, it slowly releases sulfur dioxide (SO2) gas, which can cause respiratory irritation. Proper storage in a cool, dry, well-ventilated area away from acids and oxidizers is essential. Operators should wear dust masks, goggles, and gloves. Never attempt how to make sodium metabisulfite at home for water treatment – industrial manufacturing requires controlled reaction of sodium carbonate or sodium hydroxide with sulfur dioxide under strict conditions, and mishandling can lead to hazardous gas release. Only use industrial-grade product from certified manufacturers like Weifang Hailei Fine Chemical.
| Dechlorination Agent | Form | Relative Cost per lb Cl2 Removed | Reaction Speed | Key Considerations |
|---|---|---|---|---|
| Sodium Metabisulfite (dry) | Granular / Powder | Low | Instant (free Cl); minutes (chloramines) | Stable storage, cost-effective for large volumes |
| Sodium Bisulfite Solution | Liquid 38–40% | Moderate | Instant | Higher freight, short shelf life |
| Sulfur Dioxide Gas | Compressed gas | Low | Fast | Hazardous gas handling, regulatory constraints |
| Activated Carbon | Solid granular | High | Moderate | Catalytic, large footprint, regular replacement needed |
| Hydrogen Peroxide | Liquid 35–50% | High | Moderate | Oxidizer, can release O2, not suitable for all effluents |
For the vast majority of municipal and industrial wastewater plants, sodium metabisulfite provides the optimum balance of low cost, operational simplicity, and reliability. It is exceptionally effective as a bisulfite for dechlorination for wastewater when sourced with consistent quality from established producers.
Sodium metabisulfite is manufactured in different grades. While food grade (purity ≥98%, heavy metal content tightly controlled) is used as a preservative in food processing and as an antioxidant excipient in pharmaceuticals—you may wonder what is sodium metabisulfite in paracetamol, where it prevents oxidation of the active ingredient—it is far more expensive than necessary for water treatment. Industrial-grade sodium metabisulfite with purity of 97–98% and low iron content (<0.002%) is perfectly suited for dechlorination. The key technical parameters for a wastewater dechlorination buyer are:
Using food grade simply adds unnecessary cost without any process benefit. Weifang Hailei Fine Chemical supplies both industrial-grade and food-grade sodium metabisulfite based on customer needs, and our technical team can help you confirm the ideal specification for your bisulfite for dechlorination for wastewater application.
Many international buyers track the price of sodium metabisulfite in China closely, as China dominates global production due to abundant raw material (soda ash and sulfur) and world-scale manufacturing capacity. Typical bulk FOB Qingdao prices for industrial-grade metabisulfite 97% min have fluctuated between $250 and $450 per metric ton in recent years, driven by:
To secure consistent pricing and supply, we recommend:
For the most up-to-date price of sodium metabisulfite in China and a tailored quotation for your wastewater facility, contact our sales team.
China accounts for more than 60% of the world’s sodium metabisulfite production capacity, with established chemical clusters in Shandong, Sichuan, and Hubei provinces. Global benefits of sourcing from a reputable Chinese manufacturer like Weifang Hailei Fine Chemical include:
When implementing bisulfite for dechlorination for wastewater, the reliability of your chemical supply chain is critical. Partnering with an experienced exporter eliminates the risks of inconsistent product and late shipments.
Use the following checklist when evaluating sodium metabisulfite suppliers for your wastewater dechlorination program:
Absolutely not. How to make sodium metabisulfite at home is a question we see online, but industrial production requires reacting sulfur dioxide gas with an alkaline solution under controlled temperature and pressure. The SO2 is toxic and corrosive, and without proper scrubbing systems, it poses serious health and environmental risks. Only use factory-produced, quality-controlled sodium metabisulfite from a trusted chemical supplier.
In pharmaceutical formulations, sodium metabisulfite can act as an antioxidant to prevent the oxidation of active ingredients like paracetamol (acetaminophen). Its ability to scavenge oxygen helps maintain drug stability. This is a food/pharma-grade application, distinct from the industrial-grade product used in wastewater dechlorination.
In addition to bisulfite for dechlorination for wastewater, sodium metabisulfite is employed in gold mining for cyanide detoxification, in pulp and paper as a bleaching agent and “anti-chlor” after chlorine bleaching, in textile processing to neutralize residual chlorine on fabrics, and as a food preservative (E223) to inhibit microbial growth. Our product page offers more detail on these applications.
When stored in a cool, dry place (below 30°C, relative humidity < 70%) in sealed original packaging, industrial-grade sodium metabisulfite maintains its purity for at least 12 months. Avoid exposure to moisture, acids, and strong oxidizers. We recommend a FIFO inventory system to preserve activity.
Whether you are upgrading your dechlorination system or seeking a cost-effective bulk supplier, Weifang Hailei Fine Chemical delivers consistent-quality sodium metabisulfite tailored to your operational needs. Our technical team can help you calculate dosing, select the optimal grade, and navigate the import process. As a leading Chinese exporter with decades of experience, we are committed to supporting your water treatment goals with product you can trust.
Ready to discuss your requirements? Request a quote today and see why facilities worldwide rely on us for bisulfite for dechlorination for wastewater.