| บทคัดย่อ(English) |
This research study examined use of waste materials from wood industries. The experiment sought to use sawdust to improve the production of Joss Sticks, Mushroom Cultures and Dense Briquette Fuel and to compare the beneficial economics. The statistic used was ANOVA, analysed by using SPSSX. The experiment was conducted during August to September 1999. The places where the experiment was led were at Pornsriayutthaya Joss Stick Factory Phranakornsriayutthaya;province;at Banaranyik mushroom culture garden centre Nakhonprathom;province;the dense briquette fuel production sites at Thailand Institute of Scientific and Technological Research Bangkok and The Charcoal Research Centre Saraburi;province. The result of this research indicated that the Joss Sticks produced from rubber trees, after examine the time during burning was not different from the general Joss Stick production. The mushroom cultures production can be produced by using sawdust from rubber trees. The result after testing the growth of every mushroom fiber was that it was like the fiber of mushroom from the general mushroom cultures production. The dense briquette fuel production can be produced by using sawdust from rubber trees. The result of quality analysis of dense quality fuel had a density of 1,295 kg./m. The compression strength was 0.045 N/nm(2)/length 1 mm. The quality analysis result of fuel showed volatile matters 18.7%, fixed carbon 77.3%, ash content 4.0%, calorifle value 7,450 k.cal./kg. A comparison of beneficial economics of producing Joss Sticks and Mushroom Cultures showed benefiicial economics especially Joss Sticks revealed a maximum profit. The producing of dense briquette fuel proved economically unprofitable. A comparison of value-added residual sawdust using appropriate technology indicated that producing Joss Sticks and Mushroom Cultures are appropriate methods for using waste matter. Using value-added technology with residual sawdust can be a beneficial trend for making decisions about occupation investments. However, there are another factors to consider such as power sources, marketing and experience. |
