Abstract:
This study project aimed to quantitate and proposed suitable managerial strategies for paint wastegenerated from automobile garages. As of March 2003, there were 966 automobile garagesregistered with the Department of Industrial Works and located in Bangkok Metropolitan area.Number of serviced cars per garage was estimated through the telephone interviews to 220 randomselectedgarages of which 79,102, and 39 were located in inner, intermediate, and outer Bangkok,respectively. Paint waste was weighted on sites separately according to painting-area category, i.e.,one spot, 1/6, 2/6, 3/6,4/6, 5/6, and 6/6 of automobile body surface, and found to be 61.3, 199.1,398.2, 597.3, 759.3, 949.0, and 1,134.0 grams, respectively. Average amount of paint wasteestimated by three methods was around 22 - 25 tons per month. At present, this paint waste wasdiscarded with municipal solid wastes which were collected, transported, and finally disposed in adomestic landfill by local authority. As a result from improper handling, certain residual chemicalsin the paint waste might cause some adverse impacts to the environment. The proposed appropriatemanagement for this paint waste consists of segregation from domestic wastes, exclusive collection,and sequentially sanitary disposal which has two alternatives. First alternative is to incinerate in thecement kiln or send to the industrial waste treatment facilities which will cost, excludingtransportation fee, about 28,600 - 42,500 and 33,000 - 37, 500 baht per month, respectively.Second option is to reuse as a raw material for cement brick production by mixing with the cementeither directly or as the ash after incineration. Estimated expenses for this option excludingequipment and operating costs were 59,864 and 342 baht per month, respectively.