The Role of Aeration Zone in an Integrated Phytogreen System for Bod, Cod and SS Removal from Wastewater in Conventional Oxidation Pond

摘要

Water is the basic element that we use in our daily life. The failure of proper wastewater treatment udfrom the plant to the river stream is one of major factors for the degradation of water quality. udPhytoremediation system was being started over 10 years ago and is now rapidly developing. The treatment udof wastewater using specific aquatic plants has been proven to be efficient on-site. This technology removes udharmful chemicals from the ground when the roots of the plants absorb water and nutrients from polluted udsoil, streams and groundwater. Aeration is a part of the wastewater treatment process, this process aims to udremove and break several elements in wastewater. Aeration process provides oxygen to the water, increasing uddissolved oxygen content to increase the oxidization of pollutants. Two samples of wastewater were taken udfrom the aeration zone and the samples were being tested with parameters like BOD, COD and Total udSuspended Solids. These parameters would then determine the standard of the water being released to the udriver after going through the aeration zone in an integrated phytogreen system. There were two methods of udexperiments being conducted to test these water parameters which were the in-situ and ex-situ experiments udaccording to The Examination of Water and Wastewater (APHA; AWWA; WEF, 2005). 5.2.1. udAeration zone has been successful in lowering the value of Chemical Oxygen Demand and Biochemical udOxygen Demand. Aeration zone has lowered 97% of BOD and 96% of COD in this study. The overall udremoval efficiency for BOD and COD were 98.1% and 97.6% respectively. Suspended Solids has been uddecreased at 85% through the aeration zone, and 90% after the overall process. The concentration of udsuspended solids in this integrated system was in Standard A. As a conclusion, aeration zone has enhanced udseveral parts of the phytogreen integrated system.