Air buangan merujuk kepada cecair dan pepejal-pepejal bawaan air. Air buangan ini dari tempat tinggal, perindustrian dan kegunaan komersial serta dari aktivi-aktiviti manusia. Oleh sebab itu, kualiti air buangan ini telah dinyahgredkan dan dilepaskan kedalam satu sistem kumbahan. Kajian ini lebih fokus kepada potensi bahan erap dari abu hampas tebu, abu sekam padi dan abu bendi dalam penyingkiran bahan pencemar dari air buangan pembetung. Dalam kajian ini, komposisi air buangan pembetung telah ditentukan melalui nilai pH, warna, jumlah bahan-bahan pejal yang terapung (TSS), kekeruhan, keperluan oksigen kimia (COD) dan besi (Fe). Selepas rawatan, komposisi air yang telah dirawat diperiksa untuk mengetahui keberkesanan dan pontensi penyingkiran. Peratusan penyingkiran warna, kekeruhan, jumlah pepejal terapung (TSS), keperluan oksigen kimia (COD) dan besi (Fe) adalah 81%, 99%, 99%, 90% dan 71% masing-masing dari air buangan yang dirawat dengan bahan erap yang berkeasan iaitu SRO-1 (5). Oleh kerana itu, kajian ini menyimpulkan bahawa SRO-1(5) adalah bahan erap cekap yang berpotensi sebagai sumber bahan erap semula jadi dalam penyingkiran pencemaran dari air buangan.
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Wastewater referred to liquids and waterborne solids. It formed as source of domestic, industrial and commercial as well as other liquids involved in human activities. Therefore used water quality had been degraded seriously, and discharged to a receiving sewage system. This study focused on the potentially of sorbents such as, sugarcane bagasse ash, rice husk ash and okra ash in pollutants removal from sewerage wastewater. In this study, the compositions of sewerage wastewater were determined such as pH, colour, total suspended solids (TSS), turbidity, chemical oxygen demand (COD) and iron (Fe). After treatment, the compositions of effluent were characterised to find out effectiveness and removal potentially of sorbents. The removal percentage of colour, turbidity, total suspended solids (TSS), chemical oxygen demand (COD) and iron (Fe) were 81%, 99%, 99%, 90% and 71%, respectively, from wastewater which was treated with effective sorbent namely SRO-1 (5). Therefore, this study concluded that, sorbent SRO-1 (5) was the efficient sorbent which had potentiality as natural sources of sorbent in pollutants removal from sewerage wastewater.
Application of agricultural waste in pollutants removal from sewerage wastewater_ Muhammad Nor Azman Abd Salam_A9_2011_NI