PASTIC Dspace Repository

Chemical Oxygen Demand (COD) Fractions Characterization of Karachi Metropolitan Wastewater

Show simple item record

dc.contributor.author YASMIN NERGIS
dc.contributor.author MUGHAL SHARIF
dc.contributor.author M. AFZAL FAROOQ
dc.date.accessioned 2023-10-02T05:33:32Z
dc.date.available 2023-10-02T05:33:32Z
dc.date.issued 2010-12-03
dc.identifier.citation Nergis, Y., Sharif, M., & Farooq, M. A. (2010). Chemical oxygen demand (COD) fractions characterization of Karachi metropolitan wastewater. Journal of the Chemical Society of Pakistan, 32(6), 711-716. en_US
dc.identifier.issn 0253-5106
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/19741
dc.description.abstract To prove the hypothesis that the inert products are given to environment due to biological degradation of substrate in activated sludge operations. This study was design to investigate the inert fractions of chemical oxygen demand (COD) in metropolitan effluent. An aerobic batch reactor system was experimentally setup and maintained up to 480 hours. At the end of operations, COD compositions of metropolitan wastewater were found to be STO = 131 mg/L, XSO = 63 mg/L, CSO = 178 mg/L, SSO = 115 mg/L, SI = 16 mg/L, XI = 218 mg/L, respectively. At the end of operations, COD compositions of metropolitan wastewater were found to be STO = 131 mg/L, XSO = 63 mg/L, CSO = 178 mg/L, SSO = 115 mg/L, SI = 16 mg/L, XI = 218 mg/L respectively. This study is focused on inert COD fractions of metropolitan wastewater which consist of domestic as well as local industrial effluent. Soluble inert COD (SI) must be determined for discharge standards since it did not give any reaction in activated sludge system and was given with wastewater discharge. However particulate inert COD (XI) accumulated in system depending on sludge retention time due to it is only wasted from system by wasted sludge. Experimental techniques were used attained Zohu X. et al. [1, 2] in order to determine directly influent particulate and soluble inert fractions. The experimental study was carried out until COD profile reached to steady state or depletion of degradable substrate.The conventional parameters of municipal characterization were as follows: total COD (CTO) = 412 mg/L, total soluble COD (STO) = 131 mg/L, biochemical oxygen demand (BOD5) = 197 mg/L, total biochemical oxygen demand (BODt) = 351 mg/L, total suspended solids (TSS) = 264 mg/L, ammonia nitrogen (NH3-N) = 26.6 mg/L, grease & oil (G & O) = 17.5 mg/L and pH were 7.4 SU, respectively. en_US
dc.description.sponsorship The chemical society of Pakistan is an approved society from the PSF. en_US
dc.language.iso en en_US
dc.publisher Karachi: The Chemical Society of Pakistan en_US
dc.title Chemical Oxygen Demand (COD) Fractions Characterization of Karachi Metropolitan Wastewater en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Advanced Search

Browse

My Account