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A New Green Model for the Bioremediation and Resource Utilization of Livestock Wastewater

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  • Linhe Sun

    (Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
    Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China)

  • Huijun Zhao

    (Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
    College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China)

  • Jixiang Liu

    (Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
    Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China)

  • Bei Li

    (Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
    Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China)

  • Yajun Chang

    (Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
    Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China)

  • Dongrui Yao

    (Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
    Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Nanjing 210014, China)

Abstract

The rapid growth of the livestock and poultry industries has resulted in the production of a large amount of wastewater, and the treatment of this wastewater requires sustainable and environmentally friendly approaches such as phytoremediation. A substrate-free floating wetland planted with water dropwort ( Oenanthe javanica ), a common vegetable in Southeast China, was constructed to purify a lagoon with anaerobically and aerobically treated swine wastewater in Suqian, China. The average removal rates of total nitrogen, ammonium nitrogen, nitrite nitrogen, and chemical oxygen demand were 79.96%, 95.04%, 86.14%, and 59.91%, respectively, after 40 days of treatment. A total of 98.18 g∙m −2 nitrogen and 19.84 g∙m −2 phosphorus were absorbed into plants per harvest through the rapid growth of water dropwort biomass, and the nitrogen accumulation ability was similar to that observed of other plants, such as water hyacinth. In addition, the edible part of water dropwort was shown to comply with the Chinese National Food Sanitation Standards and be safe for human consumption. Its low soluble sugar content also makes it a suitable addition to the daily diet. Overall, substrate-free floating constructed wetlands planted with water dropwort could be more widely used for livestock wastewater purification and could be integrated with plant–livestock production in China because of its high removal efficiency and recycling utilization of water dropwort biomass.

Suggested Citation

  • Linhe Sun & Huijun Zhao & Jixiang Liu & Bei Li & Yajun Chang & Dongrui Yao, 2021. "A New Green Model for the Bioremediation and Resource Utilization of Livestock Wastewater," IJERPH, MDPI, vol. 18(16), pages 1-13, August.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:16:p:8634-:d:614972
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    References listed on IDEAS

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    1. Yuanyuan Shen & Yu Ji & Chunrong Li & Pingping Luo & Wenke Wang & Yuan Zhang & Daniel Nover, 2018. "Effects of Phytoremediation Treatment on Bacterial Community Structure and Diversity in Different Petroleum-Contaminated Soils," IJERPH, MDPI, vol. 15(10), pages 1-17, October.
    2. Kevin Schoenmakers, 2020. "How China is getting its farmers to kick their antibiotics habit," Nature, Nature, vol. 586(7830), pages 60-62, October.
    3. Zheng, Z.C. & Li, T.X. & Zeng, F.F. & Zhang, X.Z. & Yu, H.Y. & Wang, Y.D. & Liu, T., 2013. "Accumulation characteristics of and removal of nitrogen and phosphorus from livestock wastewater by Polygonum hydropiper," Agricultural Water Management, Elsevier, vol. 117(C), pages 19-25.
    4. Siyuan Song & Penghe Wang & Yongxia Liu & Dehua Zhao & Xin Leng & Shuqing An, 2019. "Effects of Oenanthe javanica on Nitrogen Removal in Free-Water Surface Constructed Wetlands under Low-Temperature Conditions," IJERPH, MDPI, vol. 16(8), pages 1-19, April.
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    Cited by:

    1. Hongyou Wan & Ruifeng Wang & Beibei Wang & Kehao Zhang & Huanhuan Shi & Hailong Wang, 2022. "A Case Study of Swine Wastewater Treatment via Electrochemical Oxidation by Ti 4 O 7 Anode," IJERPH, MDPI, vol. 19(21), pages 1-11, October.
    2. Yajun Chang & Zheyuan Feng & Jixiang Liu & Junfang Sun & Linhe Sun & Qiang Tang & Dongrui Yao, 2022. "Trends and Causes of Raw Water Quality Indicators in the Five Most Famous Lakes of Jiangsu Province, China," IJERPH, MDPI, vol. 19(3), pages 1-16, January.
    3. Linhe Sun & Wei Wang & Fengjun Liu & Jixiang Liu & Fengfeng Du & Xiaojing Liu & Yajun Chang & Dongrui Yao, 2022. "Differences in Nitrogen and Phosphorus Removal under Different Temperatures in Oenanthe javanica Cultivars," Agriculture, MDPI, vol. 12(10), pages 1-15, October.

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