Domestic Wastewater Treatment Using Fly Ash

Abstract

Wastewater treatment and disposal is the serious issue and need attention for protecting the environment. Management of coal fly ash (class C ashes) as a particulate by-product of coal burning has become an issue to be solved right away due to environmental concerns related to soil, water, and air pollution. Over the recent years, fly ash has been experimented as an adsorbent for the waste water treatment plants. Many attempts have been made by researchers for the conversion of coal fly ash. Wastewater treatment using coal fly ash is one such attempt solving water quality issues. The abundant availability, high carbon content and adsorption characteristics of fly ash lead to application in waste water treatment method. In this study, experiments were carried out using fly ash as adsorbent. A batch study was conducted to check the removal efficiency of wastewater The chemical properties of wastewater before and after treatment were examined. The experimental results showed significant reduction in the values of BOD from (178mg/l to 96mg/l), COD from (110 mg/l to 40mg/l), pH from (8.2 to 7.2) and TDS from (880mg/lt 110 mg/l) after treatment. A scanning electron microscope (SEM) scans a focused electron beam over a surface to create an image. Beneficial effects of fly ash utilization as adsorbent was observed for removing various impurities present in wastewater. Sludge conditioning is a use for fly ash, but suitable mixing and feeding equipment for fly ash is required. It is understood from the review that fly ash has demonstrated good removal capabilities for various organic compounds.