Construction and demolition debris (CDD) and gypsiferous soils contain elevated concentrations of sulfate which can cause several environmental and agricultural problems. Reduction of the sulfate content of CDD and gypsiferous soils is an option to overcome these problems. This study aimed to develop sulfate removal systems either by biological or chemical processes to reduce the sulfate content of CDD and gypsiferous soils in order to decrease the amount of solid wastes and to improve the quality of CDD and soils for recycling purposes or agricultural applications. The treatment concept leaches the gypsum contained in the CDD by water. The sulfate containing leachate is further treated and reused in the leaching step. A mixture of cheap organic materials can be utilized as electron donor for the biological sulfate reduction step, especially in gypsiferous soils treatment. The sulfide containing effluent from the bioreactor can be removed by electrochemical sulfide oxidation system.
Construction and demolition debris (CDD) and gypsiferous soils contain elevated concentrations of sulfate which can cause several environmental and agricultural problems. Reduction of the sulfate content of CDD and gypsiferous soils is an option to overcome these problems. This study aimed to develop sulfate removal systems either by biological or chemical processes to reduce the sulfate content of CDD and gypsiferous soils in order to decrease the amount of solid wastes and to improve the quality of CDD and soils for recycling purposes or agricultural applications. The treatment concept leaches the gypsum contained in the CDD by water. The sulfate containing leachate is further treated and reused in the leaching step. A mixture of cheap organic materials can be utilized as electron donor for the biological sulfate reduction step, especially in gypsiferous soils treatment. The sulfide containing effluent from the bioreactor can be removed by electrochemical sulfide oxidation system.
1. Introduction
2. Biological sulfate reduction for treatment of gypsum contaminated soils, sediments and solid wastes
3. Organic substrates as electron donors in permeable reactive barriers for removal of heavy metals from acid mine drainage
4. Use of organic substrates as electron donors for biological sulfate reduction in gypsiferous mine soils from Nakhon Si Thammarat (Thailand)
5. Biological sulfate removal from gypsum contaminated construction and demolition debris
6. Biological sulfate removal from construction and demolition debris leachate: Effect of bioreactor configuration
7. Chemical sulfate removal for treatment of construction and demolition debris leachate
8. Spontaneous electrochemical treatment for sulfur recovery from the effluent of sulfate reducing bioreactor
9. Biological sulfate removal for gypsiferous soils and solid wastes remediation
Pimluck Kijjanapanich (1985, Chiang Mai, Thailand) studied Chemistry at Chiang Mai University in Chiang Mai, Thailand for her Bachelor’s degree, which was funded by The Human Development in Science Project, Thailand (2004-2008). She got the first class honors with silver medal in Bachelor of Science (Chemistry) in 2008. From 2008 till 2010, she got a scholarship funded by Her Majesty Queen of Thailand to do her Master of Science in Environmental Engineering and Management at Asian Institute of Technology (AIT), Thailand. After graduation, she worked as a research associate for The Asian Regional Research Program on Environmental Technology (ARRPET) at AIT, Thailand for 4 months. From November 2010, she started her PhD in the Joint Doctorate program funded by Erasmus Mundus Joint Doctorate Environmental Technologies for Contaminated Solids, Soils and Sediments (ETeCoS3). The research was carried out at UNESCO-IHE Institute for Water Education (The Netherlands), University of Cassino and Southern Lazio (Italy) and Asian Institute of Technology (Thailand). Most of her researche focusses mainly on biological sulfate reduction for wastewater, solid waste and soils treatment.
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