Rural solid waste-characteristics and leachate pollution assessment for different precipitation levels, China

Environmental Science and Pollution Research International
Huiyuan YangZhuoyi Yan

Abstract

Open dumping adversely affects the environment and remains the most widely used method for waste disposal in many developing rural areas in China. Information regarding the impact of rural solid waste (RSW) on the environment remains limited. The objectives of this study are to investigate the characteristics of RSW and the impact of different precipitation rates, and to evaluate the contamination potential of RSW using a leachate pollution index (LPI). The study showed that leachate concentration was significantly influenced by precipitation rates at the initial precipitation stages. Precipitation rates of 42.00 mm/day appeared to have the largest dilution effects. In contrast, the concentrations of leachate at rainfall rates of 24.00 mm/day and soaking were steady, and no similar trends were observed. The highest amounts of pollutants in leachate were the result of soaking. In the first week of our experiment, the LPI value for each rural area waste sample rapidly increased with rising precipitation rates from soaking to 42.00 mm/day. However, no significant change in LPI was observed thereafter (after 5 weeks) even with increasing precipitation rates. The values of chemical oxygen demand, biochemical oxygen demand, total nit...Continue Reading

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Citations

Aug 8, 2019·Environmental Monitoring and Assessment·Ifeoma Lindsey Onyekwelu, Okechukwu Pius Aghamelu
May 18, 2019·Environmental Science and Pollution Research International·Xinyi LiuZhenshan Li

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