Ammonia and hydrogen sulphide contribute bad odor in tannery wastewater. The present work deals with odor reduction and treatment of wastewater from a tannery. Samples of tannery waste water are collected from different regions and from different tanning sectors to analyze sulphide and nitrogen contents with them. Methods of removal of these odor-sources by means of adding reactive-chemicals or passing compressed air or adsorption by activated charcoal are studied and discussed. The latter two of methods based on feasibility and eco-friendliness, is used for experimental study. Engineering design aspects of the proposed devices (CSTR / Packed Bed) are discussed. The odor removal process is made continuous by designing and employing a temperature controller by adjusting the flow rate of air passing through the float in a CSTR / packed bed. The automatic control reduces labor cost, stabilizes operating conditions and helps in effective removal of odorous streams and gases.
">Ammonia and hydrogen sulphide contribute bad odor in tannery wastewater. The present work deals with odor reduction and treatment of wastewater from a tannery. Samples of tannery waste water are collected from different regions and from different tanning sectors to analyze sulphide and nitrogen contents with them. Methods of removal of these odor-sources by means of adding reactive-chemicals or passing compressed air or adsorption by activated charcoal are studied and discussed. The latter two of methods based on feasibility and eco-friendliness, is used for experimental study. Engineering design aspects of the proposed devices (CSTR / Packed Bed) are discussed. The odor removal process is made continuous by designing and employing a temperature controller by adjusting the flow rate of air passing through the float in a CSTR / packed bed. The automatic control reduces labor cost, stabilizes operating conditions and helps in effective removal of odorous streams and gases.