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Rapid wastewater audit for Lat Krabang Industrial Estate | |
Author | Galindo, Florence C. |
Call Number | AIT Thesis no. EV-95-12 |
Subject(s) | Factory and trade waste--Thailand--Bangkok |
Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science. |
Publisher | Asian Institute of Technology |
Series Statement | Thesis ; no. EV-95-12 |
Abstract | Results of the estate inventory made show that there are 128 industries presently in operation in Lat Krabang Industrial Estate (LKIE). Majority of these industries engage in manufacturing activites that do not involve excessive consumption of water. There are, however, a small number of industries which are contributing to mucl~ of the pollution load into the two central wastewater treatments plants. Moreover, a number of industries were identified to be releasers of toxicants. Wastewater sampling and analysis conducted for these industries identified as toxic releasers gave evidence of a rampant discharge of substandard quality of wastewater in the context of the toxicants measured. Wastewater analysis for randomly selected industries also verifed the accuracy of existing data and substantiated reasons for inconsistencies observed. A follow-up on the audit conducted in one of the industries in LKIE was carried out. Very little of the recommendations that resulted from the audit had been implemented after more than a year of conclusion . Based on available literature, an audit appt<,>ach intended for industrial estates was proposed using the experience in the rapid 11udit and the follow-up on a past audit made. The proposed audit scheme highlights the importance of considering existing management control systems aside from actual measurements of discharges. The scheme will prove to be useful when regular audits become integrated into LKIE's enviro~ental control system. Results of the rapid audit show that there is limited environmental control measures implemented. Industries are required to pay for the cost of treatment of their wastewater discharges but charging is limited to BOD and SS. Analysis of industrial effluents is therefore limited to BOD and SS determination for they are the only parameters significant for charging. However, results of actual sampling and analysis indicate that a small number of industries contribute significantly to heavy metal discharges. A need for a more' effective and efficient monitoring system is apparent. Based upon these, monitoring and control measures for Lat Krabang Industrial Estate were proposed. These include a new standard for organohalides and standards for each metal, a new charging formula that differentiates charging between industries which conform with standards or not, economic incentives in the form of violation and non-compliance fees, subsidies and a more efficient monitoring system. |
Year | 1995 |
Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. EV-95-12 |
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 and Management (EV) |
Chairperson(s) | Stoll, Uwe; |
Examination Committee(s) | Visvanathan, C.;Yang, Byung-Soo; |
Scholarship Donor(s) | H. M. King's Scholarship;The Royal Thai Government; |
Degree | Thesis (M. Sc.) - Asian Institute of Technology, 1995 |