Evaluation of biological ecological water environment renovation technology and phytoremediation of cadmium from polluted water | |
| Author | Aung Zaw Naing Lin |
| Call Number | AIT Thesis no.EV-05-2 |
| Subject(s) | Aquatic plants Cadmium Water quality |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science Inter-University Program on Environmental Toxicology, Technology and Management, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | The environmental concerns of developing countries are rising up with an increase in domestic wastewater resulting from urbanization along with the untreated effluents from industrial units, which are discharged into natural water body without proper treatment and changing of environmental standards. The discovery of aquatic plant treatment system is becoming popular to overcome the effect of eutrophication along with heavy metal contamination and as an alternative to conventional system due to better treatment of wastewater at low investment and less maintenance cost. The application of Biological Ecological Water Environment Renovation Technology which known as in short BioPark in Thailand was evaluated along with study on phytoremediation cadmium from the polluted water in this research. The interests for evaluation were based on the performance of the measured water quality parameters from Biopark units and the capacity of the system efficiency in terms of nutrient uptake throughout the study. The cultivated plants in the wastewater and storm water media could remove Total Suspended Solid, Chemical Oxygen Demand, and Total Phosphorous. The growth of the cultivated plants grown in Biopark channels was quite successful and this confirmed that certain amounts of plant nutrients (macro and micronutrients) could have been removed from the polluted water. In addition, the cultivation of useful aquatic plants could provide income potential from the biomass produced. Biopark has unique characteristics such as low capital cost and the treatment system could be performed all year round purification with proper plant management and operation of unit are easy for maintenance. After completing of the experiment for the part II of this research study, the lettuce plant could highly accumulate cadmium and it is evident that the plant is hyper-accumulator. The results from each harvesting showed that cadmium was highly accumulated in the lettuce plant of the test group and the nutrient contents in the plant tissues were decreased comparing to the control group during cultivation of plant-effective growth period until the plants age reach to maturity. |
| Year | 2005 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering (EV) |
| Chairperson(s) | Preeda Parkpian |
| Examination Committee(s) | Mizuochi, Motoyuki;Aramaki, Toshiya;Asada, Motoyuki |
| Scholarship Donor(s) | Chulabhorn Research Institute/ Mahidol University/ Asian Institute of Technology- Fellowship |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2005 |