Electrocoagulation and electrooxidation are effective methods for removing dyes like rhodamine and methyl violet from textile effluents. A critical review of various treatment methods for the removal of dyes from textile effluent suggests that physiochemical methods are often costly and generate concentrated sludge, creating a disposal problem. Therefore, there is a need to find alternative treatments that are effective in removing dyes from large volumes of effluents and are low in cost, such as biological or combination systems.

However, a study on the removal of problematic reactive dyes and basic dyes from textile wastewater using diatomite as an adsorbent showed promising results.

Another study found that agricultural waste, such as modified banana peels, can be used as adsorbents to remove dyes from aqueous solutions