Coagulation Followed By Ion Exchange to Treat Domestic Sewage
Acharya Neela1, Thakur Chandrakant2, Chaudhari Parmesh Kumar3
1Acharya Neela, 1Department of Chemical Engineering, National Institute of Technology, Raipur, India.
2Thakur Chandrakant, Department of Chemical Engineering, National Institute of Technology, Raipur, India.
3Chaudhari Parmesh Kumar, Department of Chemical Engineering, National Institute of Technology, Raipur, India.
Manuscript received on 07 August 2019. | Revised Manuscript received on 12 August 2019. | Manuscript published on 30 September 2019. | PP: 6808-6814 | Volume-8 Issue-3 September 2019 | Retrieval Number: C5758098319/2019©BEIESP | DOI: 10.35940/ijrte.C5758.098319
Open Access | Ethics and Policies | Cite | Mendeley | Indexing and Abstracting
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The pollutants contained in domestic sewage (DS) was separated using coagulation in first stage followed by ion exchange (IE) in second stage. The coagulants FeCl3, Alum and Al2(SO4)3.16H2O were used for treatment. Among these, performance of Al2(SO4)3.16H2O and FeCl3 was equally good in term of chemical oxygen demand (COD) removal at their optimum pH and optimum dose. COD values were reduced to 78 and 80 mg/dm3 with Al2(SO4)3.16H2O and FeCl3 from initial value 256 mg/dm3. The FeCl3 coagulant treated DS was further treated using IE process, which was able to reduce hardness upto 10 mg/dm3 from initial value 580 mg/dm3. Settling of FeCl3 treated sludge was found to best and design of settler has been presented from experimental data.
Keywords: Chemical Oxygen Demand, Domestic Sewage, Ion Exchange, Coagulation, Hardness.
Scope of the Article: Bio-Science and Bio-Technology