Title needs improvement to include the scientific name of tea. Abstract is well written and informative The references were up-to-date and relevant to the research work

The introduction was well written, logically organized, the research gap was adequately covered, the research novelty is clearly stated and research objectives were well presented

The methodology looks good and some additional information need to be added to be more informative. For example "Batch adsorption study the conditions need to be added in quantity how the tests were ‎performed "

• The adsorption studies part are well written and follows the standard procedure.

Discussion is well presented and truly support the obtained data