Assessment of Secondary Treatment Efficiency of Dairy Wastewater using Pilot Constructed Wetland with Hair Waste Modified Substrate

Nongmaithem, A and Radhika, B (2016) Assessment of Secondary Treatment Efficiency of Dairy Wastewater using Pilot Constructed Wetland with Hair Waste Modified Substrate. In: Proceedings of International Conference on Recent Trends In Engineering, Science and Management, 15 &16 July 2016, Madurai, India,.

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Abstract

This work is conducted to study the secondary treatment efficiency of dairy wastewater using constructed wetland (CW) with keratin (hair) waste modified substrate. A pilot horizontal sub-surface flow (HSSF) constructed wetland was built using HDPE plastic crates. Lemongrass (Cymbopogan flexuosus) was planted in the constructed wetland system as the primary vegetation. Modification of substrate was done using keratin (hair) waste. Two dairy industries were considered based on the products manufactured with the objective of attaining standard effluent discharge limits after treatment. Pot culture study was conducted to determine the dilution ratio of wastewater to be fed. Batch feeding process with Hydraulic Retention Times of 24 h, 48 h and 72 h was adopted and the following parameters were analysed and studied; Bio-chemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Kjeldahl Nitrogen (TKN), Total Phosphorus (TP) and pH. The effect of varying Hydraulic Retention Times and modification of substrate by keratin waste were also studied. Results showed good removal efficiency of the pollutants by the pilot-scale constructed wetland system

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Dairy Wastewater, Hydraulic Retention Time, Keratin (hair) Waste, Lemongrass (Cymbopogan flexuosus), Pilot-scale Horizontal Sub-Surface Flow Constructed Wetland
Subjects: Engineering > MIT Manipal > Civil Engineering
Depositing User: MIT Library
Date Deposited: 22 Oct 2016 15:45
Last Modified: 22 Oct 2016 15:45
URI: http://eprints.manipal.edu/id/eprint/147372

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