Stručni rad
https://doi.org/10.33765/thate.13.1.4
DEVELOPMENT OF LOW-COST FILTERS FOR THE TREATMENT OF WATER POLLUTED WITH FOOD WASTE LEACHATE
Neelu Das
; Central Institute of Technology Kokrajhar, Department of Civil Engineering, Kokrajhar, Assam, India
Vivek Srivastava
; Central Institute of Technology Kokrajhar, Department of Civil Engineering, Kokrajhar, Assam, India
Rumi Goswami
; Central Institute of Technology Kokrajhar, Department of Civil Engineering, Kokrajhar, Assam, India
Abhishek Kumar
; Central Institute of Technology Kokrajhar, Department of Civil Engineering, Kokrajhar, Assam, India
Sažetak
This study investigates the efficacy of conventional and modified bio-sand filters as a low-cost filtering device for the treatment of groundwater contaminated with food waste leachate. Two kinds of waste materials, areca nut husk and water hyacinth stems, have been selected to alter the bio-sand filter. In conventional bio-sand filters, the ashes of these wastes are used as a filter medium. The ashes' physical characteristics, such as pH, ash content, and moisture content, have been measured. In leachate polluted water and purified water, tests for total solids, acidity, alkalinity, hardness, chloride content, pH, turbidity, dissolved oxygen, biological oxygen demand, and chemical oxygen demand have been performed. According to the testing findings, the developed filters are efficient in decreasing chloride, hardness, turbidity, chemical oxygen demand, and biological oxygen demand. The same filters have also detected an increase in dissolved oxygen. According to this study, these low-cost filters might be used as a preliminary treatment system for leachate created by food waste recycling plants.
Ključne riječi
areca nut husk ash; water hyacinth ash; bio-sand filter; leachate; biological oxygen demand (BOD); chemical oxygen demand (COD)
Hrčak ID:
286600
URI
Datum izdavanja:
6.12.2022.
Posjeta: 794 *