Industry News

Explore a shampoo wastewater jar test using decoloring agent, PAC, pH adjustment and anionic PAM, with recorded chemical dosages and treatment steps.

A bottle of soft drink may look harmless, but its sugar, acidity, phosphorus and color can create a surprisingly concentrated wastewater stream. This article uses a simple calculation to explain the pollution load and outlines a practical treatment strategy for beverage manufacturers.

 Laboratory case collection covering corn fermentation, soy sauce, soybean protein and xylose wastewater, with emphasis on color reduction, coagulation and floc separation.

See how a four-step process using a decolorizer, PAC, pH adjustment and anionic PAM improves landfill leachate clarification.

A dye effluent so dark it read as opaque black in the bottle. In the laboratory we ran a four-step jar test — 1.3 kg/t decoloring agent, 3.3 kg/t PAC, caustic flake to pH 7, then 3 g/t anionic PAM. After 2–3 minutes of settling the supernatant ran clear with a faint yellow cast.

A laboratory treatment case showing how a heavy metal scavenger, polyaluminum chloride, pH adjustment, and anionic polyacrylamide were used in sequence to remove complexed copper from electronics wastewater.

A pharmaceutical intermediate manufacturer sent us a deeply coloured effluent sample. In our laboratory we ran a standard jar test — 100 ppm decoloring agent, pH held at 7–8, then 1 ppm anionic PAM. The colour transferred into the flocs and the supernatant separated clearly. 

Polyacrylamide selection depends on particle charge, solids, water chemistry, equipment and the treatment target. This guide answers the most common technical and purchasing questions while separating family-level TDS values from grade-specific recommendations.

Three jar-test validated dosing schemes for pink, reddish-brown and gray water-based paint wastewater. Each case gives the full four-step train — decolorizer, caustic soda to pH 7–8, anionic PAM flocculation and solid-liquid separation — with exact dosages per ton so you can start your own jar tests.