Alternatives for improvement of wastewater treatment systems for Mahidol University, Salaya
Issued Date
2007
Copyright Date
2007
Resource Type
Language
eng
File Type
application/pdf
No. of Pages/File Size
vii, 108 leaves : ill. (some col.)
Access Rights
open access
Rights
ผลงานนี้เป็นลิขสิทธิ์ของมหาวิทยาลัยมหิดล ขอสงวนไว้สำหรับเพื่อการศึกษาเท่านั้น ต้องอ้างอิงแหล่งที่มา ห้ามดัดแปลงเนื้อหา และห้ามนำไปใช้เพื่อการค้า
Rights Holder(s)
Mahidol University
Bibliographic Citation
Thesis (M.Sc. (Appropriate Technology for Resources and Environmental Development))--Mahidol University, 2007
Suggested Citation
Chanapa Chandrayu Alternatives for improvement of wastewater treatment systems for Mahidol University, Salaya. Thesis (M.Sc. (Appropriate Technology for Resources and Environmental Development))--Mahidol University, 2007. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/96701
Title
Alternatives for improvement of wastewater treatment systems for Mahidol University, Salaya
Alternative Title(s)
แนวทางการพัฒนาการจัดการระบบบำบัดน้ำเสีย สำหรับมหาวิทยาลัยมหิดล ศาลายา
Author(s)
Advisor(s)
Abstract
The study seeks ways and means to improve the university central wastewater treatment systems of Mahidol University, Salaya. The analysis has been accomplished by means of collection of Composite Samples within the University at 11 sites, starting from 7.00 am to 7.00 pm, every 3 hours for 7 days (Monday-Sunday) in two seasons: the rainy and dry season. It dealt with the analysis of the quality of wastewater using 7 parameters: pH, SS, TDS, BOD, TKN, SULFIDE and OIL. The studies compared the quality of wastewater to standard criteria. The wastewater from the buildings with laboratories was analyzed by COD and the quantity of heavy metals in addition to the other 7 parameters. The analysis of wastewater quality in each building was compared with the standard. The results of wastewater quality comparisons from various buildings within the University indicated that the Faculty of Science building (new) and the Office of the President consist of pre-treatment within the building. The quality of the majority of water from these two buildings met the standard criteria. The study on the efficiency of the university central wastewater treatment plant of the University considered the average BOD level of the influent and the effluent from the treatment system. It was found that the efficiency of the university central wastewater treatment plant of the University was 26.98% and 25.56% in the rainy and dry seasons respectively. The study was conducted by T-test statistical experiment through the comparison on wastewater in the rainy season with the dry season. It was found that the BOD from the buildings was statistically different in each season (p>0.05) except for the wastewater plant Influent and Effluent sites, the Dormitory, the Office of the Graduate studies and the Faculty of Environment and Resource Studies, which in each season was not statistically different (p>0.05). The results of this research indicated that there should be improvement of the sewers. The wastewater from each building needs to flow into the university central wastewater treatment plant of the University without direct discharge to the canal. There should be pre-treatment wastewater facilities in each building within the University. The buildings which require immediate attention are the Cafeteria and the Institute of Science and Technology for Research and Development. This is due to the fact that the quality of wastewater from both buildings greatly exceeded the standard criteria. The calculation on the design of the university central wastewater treatment plant of the University proved that the university central wastewater treatment plant of the University requires the installation of an aeration system to reduce the BOD level of the system. Four sets of 7.5 horsepower aerators should be installed in pond 2. This is to ensure that the quality of water discharged by the university central wastewater treatment plant of the University meets the building effluent standards.
Description
Appropriate Technology for Resources and Environmental Development (Mahidol University 2007)
Degree Name
Master of Science
Degree Level
Master's degree
Degree Department
Faculty of Environment and Resource Studies
Degree Discipline
Appropriate Technology for Resources and Environmental Development
Degree Grantor(s)
Mahidol University