Could PAC be a coagulant for textile dyeing effluents?

Textile and dyeing factories play an incredibly imperative role in deteriorating the water quality by releasing their effluents in ponds, rivers, lakes, and oceans. PAC (Polyaluminum Chloride) could be a potential coagulant for treating the textile dyeing effluents, helping to build a sustainable environment.

Can polyaluminum chloride treat textile dyeing effluents?

The study aimed to assess the coagulant efficiency of polyaluminum chloride (PAC) for treating textile dyeing effluents. The discharged textile dyeing effluents, when untreated, severely pollute water and soils, posing a threat to the entire environment.

Does PAC coagulant remove TDs & cod from textile dyeing effluent?

The total suspended solids (TSS) of various textile dyeing effluent samples were found to be in the range of 401–233 mg/L, which is significantly higher than the permissible limit of TSS (150 mg/L) as per DoE and EPA standards. The passage does not directly mention the removal of TDS and COD by PAC coagulant, but it is commonly used for such purposes in textile effluent treatment. Therefore, the passage implies that PAC coagulant likely removes TDS and COD as well.

What is chemical coagulation in textile dyeing effluent treatment?

Chemical coagulation is a process used in textile dyeing effluent treatment where chemicals are added to change the physical state of dissolved and suspended solids and facilitate their removal by sedimentation.

Is PAC used as a coagulant?

The study results showed that PAC can be used as a coagulant for reducing the concentration of several physicochemical parameters from textile dyeing effluents. It is difficult to degrade the dyeing effluent using a single treatment unit such as physical, chemical, and biological methods.

Do textile dyeing effluents pollute water and soil?

Textile dyeing effluents, when discharged without treatment, severely pollute water and soils, threatening the entire environment. The study analyzed both the discharged and treated effluents using standard methods of analysis. The optimized parameters of the coagulant PAC were the dose, contact time, temperature, and agitation speed.