出版社：Thai Society of Higher Eduction Institutes on Environment
摘要：This research aimed to analyse biomass loss and total pollution due to pre-harvest burning ofsugarcane by using the Closed Loop Combustion System Model for investigating its effects onthe environment in order to support non-sugarcane burning promotion. The results showedthat 16.61 tons/ha of sugarcane leaf were burned, or 16.65% of sugarcane yield. Total heat energyloss was 292,712 MJ/ha which was estimated to equal electrical power 6,118 kW-h/ha. Theplant nutrient contents in sugarcane leaf and ash were not found to be significantly different.Nevertheless, an economic analysis indicated that the employment of a practice that does notburn sugarcane might reduce somewhat the cost of major fertilizer (NPK) inputs as comparedto pre-harvest sugarcane burning. The amount of the pollutants CO, NO2 SO2 and CO2 in theair caused by burning 100 g of dried sugarcane leaf in the Closed Loop Combustion SystemModel was 4,406, 43.7, 104 and 154,055 mg, respectively, and the weight by area was 731, 7.26,17.3 and 25,592 kg/ha, respectively. This practice would likely lead the pollutant concentrationsincreasing in our atmosphere, which could cause worsened allergies or death for humans and harm to other living organisms such as animals and food crops. Moreover, the CO2 released by burning sugarcane contributes to global warming.
关键词：Sugarcane burning; Air pollution; Biomass loss; Closed loop combustion
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