Dear Mr. Lateral,

Surfactants differ in biodegradability. In laundary detergents surfactants used should be readily biodegradable. Some detergent formulations contain ethoxylated alkylphenols or nonlinear alkylated benzene sulfonates which are degraded to more recalcitrant parent compounds. You may combine biological removal with sorption. Adjustment of the pH to neutral levels may be necessary.

Kind regards

T. Sobisch