• DOI:10.17137/KORRAE.2014.22.4.021
• Corpus ID: 129159803

Reduction of Pollutant Load by Small Pond in a Rice Paddy Applied with Pig Manure Compost

@inproceedings{Kim2014ReductionOP,
  title={Reduction of Pollutant Load by Small Pond in a Rice Paddy Applied with Pig Manure Compost},
  author={Min-kyeong Kim and Myung-Hyun Kim and Soon-Kun Choi and Kwang-jin Cho and Seong-Chang Hong and Goo-Bok Jung and Kyuho So},
  year={2014}
}

• Min-kyeong Kim, Myung-Hyun Kim, +4 authors K. So
• Published 30 December 2014
• Environmental Science

Pig slurry has been considered as environmental waste to be treated in an appropriate manner. Moreover, water-born pollution loads by agricultural non-point source(NPS) pollution are expected to become intensified due to ongoing precipitation change. This study was conducted to develop a best management practice to reduce NPS pollution load by agricultural activity with pig manure compost. An eco-friendly way, small drainage pond, was suggested in this study to avoid direct drainage of agricultural runoffs and eventually reduce the amount of pollutants discharged into the surrounding aqua-environment. A small pond(12 m 2 ) was constructed at the corner of a rice paddy field(1,715 m 2 ) located in Suwon, Korea. Water was allowed to drain only via a small drainage pond. Sampling was repeatedly made at two locations, one from an entrance and the other from an exit of a pond, during the rice cultivation period(May to October, 2013). Generally, sampling was made only when runoff water drained through a pond, such as during and/or after rain(irrigation). The water quality analysis showed that all quality parameters(SS, CODMn, T-N, and T-P) were improved as water passed through the pond. The amount of runoff water was reduced by 67.8%. Suspended solids and CODMn concentrations were reduced by 79.8% and 71.9%, respectively. In case of T-N and T-P amounts, the reduction rates were 73.6% and 74.9%, respectively. Our data implies that agricultural NPS pollution from rice paddy fields with pig manure-based fertilizer can be effectively managed when an appropriate drainage water management practice is imposed.