Coco Peat Organic Manure used as Adsorbents for Dyes Removal

Abstract

Textile effluents constitute both organic and inorganic constituents and heavy metals which are not economical to treat and hence discharged into water bodies causing water pollution. Methods like ozonation, adsorption, membrane separation, bio sorption, biodegradation, electrochemical degradation, and phytoremediation and H2O2/UV radiation techniques were frequently used for the decolourization of azo dye containing water. Among these aforementioned techniques, the adsorption technique has shown good performance owing to several inherent advantages like high performance, easy handling with no generation of the toxic intermediates. Also dye treatment should be affordable and eco-friendly. Biochar is a sustainable material which can be used for dyes treatment. In this paper, biochar produced using coconut shell was investigated for the removal of methylene blue as the colouring agent. Batch studies were carried out for decolourization of methylene blue based artificial waste water. Different concentrations of methylene blue from 50-300mg/l was used. The validation of the tests was done using data to fit into the Langmuir isotherms and Freundlich isotherm. The adsorption isotherm was well fitted for Langmuir compared to Freundlich. The KL and KF values were also found.