Physico-chemical and Microbiological Performance Evaluation of Phytoremediation Plant

Talha Zulfiqar, Mudassir Hussain Alvi, Harris Bin Khawar, Muhammad Abdullah, Imran Hashmi

Abstract


Wastewater treatment is a major environmental problem in world particularly in Pakistan, and most conventional treatment approaches either have too much high cost or do not provide acceptable solution. The use of specially selected and engineered plants for environmental clean-up is an emerging technology called phytoremediation. Phytoremediation is the most eco-friendly and cost effective technique for removal of contaminants without the need of excavating or disposing them off. The study was conducted at NUST to treat wastewater of capacity 0.1 MGD and use this treated wastewater for horticulture purposes, fish feed and poultry etc. Apart from this, sampling from 10 points i.e. inlet, sedimentation tank and 8 different ponds were done once a week and different tests like pH, Temperature, TDS, COD, Total Coliforms, Fecal Coliforms etc. were conducted and depending upon the wastewater characteristics, best suitable plants were selected for greater decontamination efficiency for pilot scale plant. Three systems were established, lab scale, pilot scale and parallel scale treatment system, Parallel scale treatment system was designed to check the individual uptake efficiency by plants and the results were the following, water lettuce showed the maximum removal of COD i.e. 90.36%, typha and duckweed almost showed the same value of removal i.e. 83% and pennywort showed the least removal efficiency of COD i.e. 78%.


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References


D. Hinrichsen, et al., “Solutions for a watershort world, population reports, Series M, No. 14. Baltimore, Johns Hopkins School of Public

Health,” Population Information Program, 1997.

C.C. Tanner, et al., “Effect of loading rate and planting on treatment of dairy farm wastewaters in constructed wetlands—I. Removal of oxygen demand, suspended solids and faecal coliforms,” Water Research, vol.

, no. 1, 1995, pp. 17-26.

I. Hashmi, et al., “Chlorination and water quality monitoring within a public drinking water supply in Rawalpindi Cantt (Westridge

and Tench) area, Pakistan,” Environmental monitoring and assessment, vol. 158, no. 1-4, 2009, pp. 393-403.

WWF, Pakistan's waters at risk Water and health related issues in Pakistan and key recommendations, 2007.

J. Vymazal, et al., Constructed wetlands for wastewater treatment in Europe, Backhuys Leiden, 1998.

APHA, American public health association, standard methods for the examination of water

and wastewater, 2012.

P. Gupta, et al., “Treatment of water using

water hyacinth, water lettuce and vetiver grassA review,” Resources and Environment, vol. 2, no. 5, 2012, pp. 202-215.

J. G., “Microbiology a laboratory manual: selective and differential media for identifying microorganisms,” 2011.

H. Rashidi, et al., “Application of wastewater treatment in sustainable design of green built environments: A review,” Renewable and

Sustainable Energy Reviews, vol. 49, 2015, pp. 845-856.

T.B. Pirzadah, et al., “Phytoremediation: an eco-friendly green technology for pollution prevention, control and remediation,” Soil Rem

Plants Prospects Chall, vol. 5, 2015, pp. 107- 126.

T.H. Bell, et al., “Increasing phytoremediation efficiency and reliability using novel omics approaches,” TRENDS in Biotechnology, vol.

, no. 5, 2014, pp. 271-280.

V.C. Pandey, et al., “Sustainable phytoremediation based on naturally

colonizing and economically valuable plants,” Journal of cleaner Production, vol. 86, 2015, pp. 37-39.




DOI: http://dx.doi.org/10.24949%2Fnjes.v8i1.144

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ISSN (Print): 2070-9900   ISSN (Online): 2411-6319