International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 09 | Sep 2024
p-ISSN: 2395-0072
www.irjet.net
Present scheme of Treatment of Textile Waste Water at Common Effluent Treatment Plant, Jodhpur and Proposed suggestions to be implemented for improvement in quality and enhancement in quantity Prof. (Dr.) A. N. Modi1 , Rumanshu Mathur2 1 Head of Department, Civil Engineering M.B.M. University, , Jodhpur
2 Research Scholar, Department of Civil Engineering, M.B.M. University, Jodhpur (Corresponding Author)
ABSTRACT The Textile dyeing and manufacturing industry is the major producer of waste water that contains persistent substances such as 15% unfixed dyes, predominantly 60-70% azo dyes. These unfixed dyes are a major environmental concern due to their persistence and potential toxicity. In this paper, the present conventional treatment scheme of Textile CETP of Jodhpur has been reviewed and analysis of waster was performed at each treatment unit of plant for period of 10 days from 20/6/2024 to 29/6/2024. The capacity of Textile CETP is 18.5 MLD and the plant is working satisfactory up to tertiary level for 12 MLD -14 MLD, but if the quantum of the water is to be increased than few alterations and up gradations are to executed. Similarly for the 100% reuse of treated water the CETP have to be taken to Zero Liquid Discharge with installation of Ultra filtration, Reverse Osmosis and MVRE for removal of Total dissolved solids. The proposed suggestions appears to be highly promising for 100% reuse in process and in supply in agriculture activities. This work offer a sure sought of relief in pollution generated from Textile units and will will reduce pollution load on river Jojari and will a step towards the preservation & conservation of environment Keywords - Textile, dyes, common effluent treatment plant, Zero liquid discharge, parameters, reuse, primary treatment, secondary treatment, tertiary treatment
1.0 Introduction Jodhpur is an industrial hub for Textile and in ancient times people use to do the works of tie dyeing , Bandhej dyeing and pot dyeing in their houses thus evolution of Textile industries of the city took place from gaining the tag of Small scale & Medium scale units from Tiny units. At present there are around 350 units of Textile in nearby areas of Jodhpur city and around 2000 units of Textile in Marwar region of Western Rajasthan including Pali Balotra, Bithuja and Jasol.One demerit of this sector is Pollution generated from this sector and looking towards the rapid industrialization and need for treatment of waste water generated from Textile a Trust was constituted by industrialists of Jodhpur in the name of Jodhpur Pradushan Niwaran Trust in 1998 1.1 Present Process At present there are about 303 Textile beneficiary members. The alkaline primary treated effluent from member units is received via RCC conduit pipe networks CETP. The total installed capacity of plant 18.5 MLD reserved for Textile units. The CETP operated by Jodhpur Pollution Control and Research Foundation is responsible to treat effluents as per the prescribed limits by RSPCB, CPCB and NGT.For waste water treatment of Textile industries, Common effluent treatment plant of 18.5 MLD Textile is operational up to tertiary level at Sangariya ,Jodhpur. The existing plant is designed up to tertiary level and is capable of treating 18.5 MLD of trade effluent up to the parameters of Inland surface water discharge. In preliminary treatment, the effluent from Textile member units is received at CETP through closed conduit RCC pipe line. The alkaline effluent is neutralized by dosing of HCl/ before bar screen. The neutralized effluent passes through Screen chamber and Grit Chamber and effluent is then passed to Equalization tank. In primary treatment, equalized effluent is pumped to mixing channel for dosing of various chemicals like ferrous sulphate, hydrated lime, poly aluminum chloride/aluminum hydrated chloride and polyelectrolyte dosing for purpose of coagulation and pH adjustment and thereafter to clariflocculator.
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