Feasibility Studies for Reuse of Constructed Wetlands Treating Simulated Nickel Containing Groundwater
Journal Title: Universal Journal of Environmental Research and Technology - Year 2011, Vol 1, Issue 3
Abstract
Constructed wetlands are considered as low cost treatment option for domestic and industrial wastewater in the recent decades. The presence of toxic heavy metals in wastewater is a problematic issue, since these heavy metals have potential to accumulate in the treatment systems. Thus heavy metals greatly influence the efficiency of constructed wetlands. Therefore a feasibility study was proposed for long term usage of constructed wetlands as treatment systems. Initially sediment in a constructed wetland was contaminated with simulated nickel containing groundwater followed by using suitable leaching solution to rejuvenate the heavy metal contaminated sediment. A batch study was performed to identify the optimum pH for nickel adsorption on sand. The efficiency of different leaching solutions to remove the adsorbed nickel from sand was studied. Following this a Pilot scale study was carried out in constructed wetland treatment plant (vertical flow) at Anna University, Chennai, India. The amount of nickel solution charged into the Control Cell (sand) and Test Cell (sand planted with Arundo donax) was 29000 mg/cell. The concentration of nickel adsorbed to sand increased from 0.2mg/Kg to 4.34 mg/Kg in the control cell whereas the increase in test cell was 4.08mg/Kg. Leaching the wetland with EDTA solution resulted in removal of nickel up to its background concentrations on the sand. It can be concluded that the proposed feasibility study can be used to rejuvenate the sediment in a constructed wetland for its long term usage as treatment systems.
Authors and Affiliations
Sivaraman C. , Arulazhagan P. , Dirk Walther, Vasudevan N.
Keywords
Related Articles
- EP ID EP31653
- DOI -
- Views 408
- Downloads 1
A Study on Green Dyeing of Cotton with Ethanolic Extract of Sesbania aculeata
In the recent past, the pollution resulting from the production and use of synthetic colorants, has received increased worldwide awareness. This has led to a significant revival of interest in natural colorants in the l...
Extraction and Dyeing Behavior of Pomegranate dye on Tencel Fabric
Application of natural dyes for textile is increasing due to the awareness of ecology, environment and pollution control. The objective of this study is to dye Tencel fabric with pomegranate peel natural dye for compara...
A Study of Sustainable Tourist Centers in Parner Tahsil: A Geographical Analysis
Tourism is one of the largest and fastest growing industries. It is also one of the largest employing labor forces. Tourism industry has major role in development process. Nowadays, India is having greater scope in tou...
Review of the Mutagenicity of Textile Dye Products
A review of the literature on the mutagenicity of textile dye products is presented in this article. This review discusses genetic hazards associated with the production and use of textile dyes throughout the world. Mu...
Water Quality Assessment of Godavari River at Nashik, India: Impact of Sewage and Industrial Wastewater
A systematic study has been carried out to assess the water quality at downstream of Godavari river at Nashikcity and its impact on Nashik Thermal Power Station, Eklahare. Water samples from six sampling stations were...