Mass Balance Study on Domestic Wastewater Treatment Using Constructed Wetlands

被引:0
作者
Sudarsan, J. S. [1 ]
Roy, Reenu Lizbeth [2 ]
Nithiyanantham, S. [3 ]
机构
[1] NICMAR Pune, Sch Construct Management SOCM, Pune 411045, Maharashtra, India
[2] SRM Univ, Dept Civil Engn, Kattankulathur 603203, Tamil Nadu, India
[3] Thiru Vi Ka Govt Arts & Sci Coll, Post Grad & Res Dept Phys, Thiruvarur 611003, Tamil Nadu, India
关键词
constructed wetland; nitrogen; phosphorous; domestic wastewater; NUTRIENT;
D O I
10.3103/S1063455X21060096
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Mass Balance is the application of conservation of mass to the analysis of physical systems by accounting for material entering and leaving the system. For this analysis mass can be flows and identified which might have been known through this technique. A mass balance study was conducted to know about the soil, plant and water relationship in the CW unit. The mass balance calculations comprised water and nutrient budget calculations to show the percentage distribution of water and nutrients such as N, P and K in constructed wetland. The distribution of water from the constructed wetland unit was observed to be contributed by evapotranspiration, outflow from the wetland and storage in soil with 1.78; 62.61 and 35.61% respectively. The reduction percentage of nutrient content (macro elements like nitrogen, phosphorous and potassium) present in domestic wastewater after treatment using constructed wetlands was observed to be 53% (total nitrogen) and out of this, 32% reduction is due to plant uptake (Phragmites australis) and 6% absorption is contributed by soil. For phosphorous, the results obtained from the analysis showed 52.6% soil accumulation and 49% plant uptake. For potassium 4% plant uptake and 46.9% soil accumulation was observed respectively. The pH in the range around 7.1 to 7.8 and so the contribution of ammonia volatilization low is observed. The water distribution in the CW unit was contributed by Input and output. Input in the unit comprised precipitation and wastewater inflow which contributes 2.6 and 97.39% respectively and the output comprised evapotranspiration and outflow of treated water from the wetland unit which contributes 1.78 and 62.61% respectively. 35.61% of water was observed to be stored in the soil of the constructed wetland unit.
引用
收藏
页码:497 / 502
页数:6
相关论文
共 14 条
  • [1] [Anonymous], 1996, SOIL MICROBIOLOGY EC
  • [2] Cooper PF., 1996, Reed Beds and Constructed Wetlands for Wastewater Treatment
  • [3] Strategies of aerobic ammonia-oxidizing bacteria for coping with nutrient and oxygen fluctuations
    Geets, Joke
    Boon, Nico
    Verstraete, Willy
    [J]. FEMS MICROBIOLOGY ECOLOGY, 2006, 58 (01) : 1 - 13
  • [4] Hargreaves G. H., 1985, Applied Engineering in Agriculture, V1, P96
  • [5] Hauck R., 1984, HDB ENV CHEM, P105
  • [6] Novel principles in the microbial conversion of nitrogen compounds
    Jetten, MSM
    Logemann, S
    Muyzer, G
    Robertson, LA
    deVries, S
    vanLoosdrecht, MCM
    Kuenen, JG
    [J]. ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY, 1997, 71 (1-2): : 75 - 93
  • [7] Kadlec R.H., 1996, Treatment Wetlands
  • [8] Krishna P.R., 2019, Agric. Rev, V40, P1
  • [9] López-Arredondo DL, 2013, INT J DEV BIOL, V57, P595, DOI [10.1387/ijdb.1302681h, 10.1387/ijdb.130268lh]
  • [10] Nitrogen dynamics in flooded soil systems: an overview on concepts and performance of models
    Nurulhuda, Khairudin
    Gaydon, Donald S.
    Jing, Qi
    Zakaria, Mohamad P.
    Struik, Paul C.
    Keesman, Karel J.
    [J]. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, 2018, 98 (03) : 865 - 871