The
Malaysian Journal of Analytical Sciences Vol 11 No 1 (2007): 23 - 28
CHARACTERIZATION OF LIVESTOCK WASTEWATER AT VARIOUS
STAGES OF WASTEWATER TREATMENT PLANT
Ting Teo Ming*1, Kim Tak Hyun2,
Lee Myun Joo2
1Malaysian Nuclear Agency, Bangi, 43000, Kajang,
Selangor
2Korea Atomic Energy Research Institute (KAERI),
Daejeon, South Korea.
*Corresponding
author: tmting@nuclearmalaysia.gov.my
Abstract
A
characterization study has been conducted at Gongju Livestock Wastewater
Treatment Plant, Gongju, South Korea. It
is owned and operated by the government with treatment capacity of 250 tons per
day. Livestock wastewater was collected
from individual farmer and treated at the treatment plant. The centralized livestock wastewater
treatment plant has various treatment
processes namely pre-treatment, anaerobic
digestion, nitrification, de-nitrification, chemical
treatment, sand filtration and
ozonation. The livestock wastewater was
characterized by high COD, SS, T-N and T -P with concentration of 20,600 mg/l,
6933 mg/l, 2820 mg/l and 700 mg/l, respectively. After the wastewater has undergone various treatment processes it was discharged
to waterways with concentration of COD, SS, T-N and T -P at 105mg/l, 73 mg/l,
2.1 mg/l and 9 mg/l, respectively. This
is part of the study to investigate the potential of irradiation to be applied
at the centralized livestock wastewater treatment plant. Although livestock wastewater can be
potentially applied to crop as source of nutrients it also affect the water
quality due to runoff and leaching. When
the wastewater applied at the rates in excess of crop uptake rates, the excess
wastewater could potentially enter surface and groundwater and polluted them.
Keywords: Livestock
wastewater; surface water; nitrification
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