Potentials for waste minimisation and treatment in starch/noodle factories a case study in Thailand | |
| Author | Shu, Li |
| Call Number | AIT Thesis no.EV-92-28 |
| Subject(s) | Starch industry--Waste disposal Factory and trade waste--Thailand |
| Note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of science |
| Publisher | Asian Institute of Technology |
| Abstract | A medium scale mun g bean starch factory was taken in this s tudy in order to assess t h e pollution caused by various streams in a starch/noodle factory and pr ovide basic information for wast e water management in s tarch/noodle factories. To compare the characteristics of waste water from different facto ries, other two s mall sca le noodle factories were a lso taken into consideration . The medium scale factory u ses mun g bean as raw material and produces approximately 18 ton starch a nd 11 ton protein out of about 50 ton mun g b ean ea c h day with 6-10 ton of raw material getting into waste stream. The results of t his research s how that t h e water con s umption for processing one ton mun g bean in the factory is 16-25 m3 hig he r tha n theoretically required, t ha t everyday 30 - 140 kg out of 3-6 ton starch used for v ermicelli production is wasted, which also goes into waste water, a nd that the characteristics of total waste water from t his factory are as s uch: COD = 3000-5050 mg/l, SS = 1100-1600 mg/l, TKN = 100-250 mg/l and TP = 30-50 mg/l. The same kinds of infor mation about t h e other two small scale factories were also given in t he study and the comparison with the medium o ne have been made. Based on t he research, methods have been proposed for minimizin g the wast e water produced by t h ese factories so as to r edu ce t h e pollution. One of t he alternatives is to use wate r in a con trolled way b y ma rkin g optimum flow rates on t he tab valves, in whic h water con s umption can be b roug ht down from 16-25 m3 to 12 m3 for processin g on e ton mung bean. |
| Year | 1992 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. EV-92-28 |
| 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) | Verink, J. |
| Examination Committee(s) | Schroder, H.;Reutergardh, L.;Visvanathan, C. |
| Scholarship Donor(s) | Government of Denmark |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1992 |