摘要：Proper utilization and disposal of solid waste specially domestic sludge was one of the most critical problem facing in city because domestic sludge is dump on outskirts of city without any treatment. Reed bed technology was based on ecological principles for management and disposal of domestic sludge. Experimental set up was formulated for treatment / conversion of complex organic matter into simple organic compound. The size of cemented tank used for sludge treatment were 3.5 ft length x 2.0 ft breadth and 3.0 ft depth for constructed reed bed system (CRBs). The CRBs was composed of a gravel bed supported below on a layer of pubbled, local clay. CRBs was planted with locally grown grass, Phragmites karka. Performance of reed in CRBs for domestic waste was evaluated for removal efficiency of some physico-chemical parameters. Plants placed in this rectangular design at the rate of 6 to 8 plants per tank and parameters assessed before and after 15 days of intervals i.e. pH, conductivity, salinity, organic carbon, organic matter, total kzeldhal nitrogen (TKN), organic nitrogen (Org.-N), nitrate-nitrogen (NO3-N), ammonium nitrogen (NH4-N), and available phosphorus (Av.-P), total phosphorus (T-P) while plant parameters freshanddry weight of root, shoot, whole plant biomass and TKN in oven dry tissue. Removal rates were analysed as TOC (48%), TKN (61%), NH4-N (50%), NO3-N (58%) and total phosphorus (65%) respectively. The overall results established that it's very cost-effective treatment technology and removal efficiency was above 50%. The use of reed beds provides an efficient alternative for domestic sludge treatment.
关键词：Constructed reed bed systems (CRBs);domestic sludge;Phragmites karka (reed);cemented tank;cost effective;removal efficiency
