Article

GSTF Journal of Engineering Technology (JET)

, 2:11

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

The Use of Natural Filter Media Added with Peat Soil for Household Greywater Treatment

  • Radin Maya Saphira Radin MohamedAffiliated withDepartment of Water and Environmental Engineering, Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia Email author 
  • , Chee-Ming ChanAffiliated withDepartment of Water and Environmental Engineering, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia
  • , Anwaruddin Ahmed WurochekkeAffiliated withDepartment of Water and Environmental Engineering, Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia
  • , Amir Hashim bin Mohd. KassimAffiliated withDepartment of Water and Environmental Engineering, Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia

Abstract

Greywater is wastewater that produces 50-80% of overall water consumption in a house. In many village houses of Malaysia, the household greywater that comes from kitchen, laundry, bathroom and sinks is usually untreated and discharged directly into streams or rivers. This phenomenon escalates the pollution among Malaysian rivers. This study examines the effects of household greywater treated with locally available peat soil. This study was performed by using a two-stage filter media (i) pretreatment (gravel + sand) (ii) peat based (peat + charcoal + gravel). Effects of filtration on the peat soil were examined via the one-dimensional consolidation test and X-Ray Fluorescence Test (XRF). Removal efficiency of the greywater effluent was found to be TSS- 81%, BOD- 54%, COD – 52% and AN - 87%. pH of the greywater was improved from acidic (4.6) to neutral (6.9). Quality of the treated greywater complied with the limits of the Malaysian Standard (Standard B) for wastewater effluent discharge. The consolidation test was affected and became slower. XRF test indicates that peat soil has an increased amount of the inorganic content of Silicon Dioxide (SiO2) and Aluminium Oxide (Al2O3) associated with the absorption of certain elements in greywater. The peat based filter resulted in a substantial removal of pollutants. Further study is needed to look in depth the mechanism of adsorption and its applicability in a large scale processes.

Keywords

greywater peat soil filter media sand gravel charcoal