Chemical Wastewater Color Removal for a Leather Chemical Manufacturer in Turkey

Chemical Wastewater Color Removal for a Leather Chemical Manufacturer in Turkey

Industry Challenge

The leather processing and leather chemical industry generates large volumes of wastewater containing dyes, tanning chemicals, surfactants, and organic compounds.

In Turkey, where the leather industry plays an important role in the export economy, many manufacturers face strict environmental discharge regulations for wastewater color and COD levels.

A leather chemical manufacturer located in western Turkey contacted Bluwat Chemicals after experiencing difficulties removing color from its chemical wastewater using conventional coagulation methods.

The wastewater contained high levels of dye residues and complex organic compounds, resulting in persistent color even after treatment.

Wastewater Characteristics

Laboratory analysis showed that the wastewater had the following characteristics:

• High color intensity from dye additives
• High COD concentration
• Stable colloidal particles
• Poor natural sedimentation performance
• Difficult color removal using PAC alone

These characteristics required a combined decolorization and flocculation treatment approAch.

Bluwat Jar Test Evaluation

To determine the optimal treatment process, Bluwat engineers conducted a laboratory jar test using wastewater samples provided by the customer.

The recommended treatment process consisted of three steps.

Step 1 – Decolorization

A Bluwat Water Decolorizing Agent was first added to break down dye molecules and neutralize color-causing compounds.

This step significantly reduced the intensity of the wastewater color.

Step 2 – Coagulation

Next, Polyaluminium Chloride (PAC) was introduced to destabilize colloidal particles and initiate coagulation.

PAC helps bind fine suspended particles and organic matter.

Step 3 – Flocculation

Finally, a small amount of Polyacrylamide (PAM)Flocculant was added.

PAM promotes the formation of large flocs, allowing particles and color compounds to settle quickly.

Treatment Performance

After treatment, the wastewater showed significant improvement in both color and clarity.

Large flocs formed rapidly during the test, and sedimentation occurred within a short time.

The results confirmed that the Decolorizing Agent + PAC + PAM combination is highly effective for treating leather chemical wastewater.

Benefits for Leather Chemical Manufacturers

This treatment approAch offers several advantages for leather chemical and tanning-related industries:

Application Industries

The same treatment strategy can also be applied to wastewater generated from:

• Leather chemical manufacturing
• Tanning industry wastewater
• Dye and pigment production
• Textile dyeing plants
• Chemical additive manufacturing

About Bluwat Chemicals

Bluwat Chemicals is a professional manufacturer and exporter of Water Treatment Chemicals with more than20 years of production experience.

Our core products include:

• Water Decolorizing Agent
• Polyacrylamide (PAM) Flocculants
• Polyaluminium Chloride (PAC)
• PolyDADMAC Coagulants
• Polyamine Coagulants

Bluwat chemicals are widely used in industrial wastewater treatment, textile wastewater treatment, chemical wastewater treatment, and municipal water treatment.

Looking for an Effective Wastewater Treatment Solution?

If your facility is facing challenges with high-color industrial wastewater, Bluwat Chemicals can provide professional treatment solutions.

Our technical team can perform jar testing and dosing optimization to recommend the most suitable treatment chemicals.

Contact us to learn more about our wastewater treatment products and solutions.