Waste audit of the standard Thai rubber grade 5L(STR 5L) industry | |
| Author | Krisanapong Sukhsawasdi, M.L. |
| Call Number | AIT Thesis no.EV-01-10 |
| Subject(s) | Rubber industry and trade--Thailand Factory and trade waste--Environmental aspects--Thailand |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | Factory Y is a Standard Thai rubber grade SL (STR5L) processing industry with the average field latex production of 43 tons/day and consumes water of average 0.44 m 3 /ton field latex. As the results of high organic of rubber composition and chemical use in processing, pollutant load in wastewater is very high. 591.5 kg BOD/d, 943 kg COD/d, 16.3 kg N/d, and 41.13 kg SS/d were generated from STR5L processing. This high pollutant loading entered the existing effluent treatment system which comprised of aerated lagoon, facultative pond, and Maturation pond in series. The efficiency of the system was 98.24% BOD and 95.74% COD removal. However, wastewater volume and concentration of STR5L process that transfened to wastewater treatment plant was fluctuated among times in a year then Hydraulic Retention Time (HRT) of pond system was difficult to control. Dimension of wastewater treatment ponds were over than operation range then HRT is high, the balance of symbiosis will break down and BOD removal rate will be low. The effluent of wastewater from last pond was not meet industrial effluent standard. Modification was urgently needed, and it was done by res1zmg dimension of wastewater treatment ponds, using interpond recirculation system and providing some modification. The efficiency of overall system will increase then quality of effluent will be met industrial effluent standard. In order to meet the highest reduction in all problems and zero discharge, waste minimization and operation of high efficiency of overall system were introduced as the most effective solution. |
| Year | 2001 |
| 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) | Samorn Muttamara |
| Examination Committee(s) | Nielsen, Per H. ;Fukushi, Kensuke |
| Scholarship Donor(s) | Asian Institute of Technology (Royal Thai Government) |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2001 |