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首页> 外文期刊>World review of science, technology and sustainable development >Characterisation of waste water from biomass gasification equipment: a case-study from Cambodia
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Characterisation of waste water from biomass gasification equipment: a case-study from Cambodia

机译：生物质气化设备废水的表征：来自柬埔寨的案例研究

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The gasification of rice husks for small-scale power generation in rice mills and other small factories in Cambodia has spread rapidly in the past decade and has a favourable investment payback period where the facility is off-grid. The technology is widely regarded as a sustainable, low-carbon power option. However, installed gasification technologies produce a black waste water which is frequently disposed of into the local environment without any treatment. An analysis was undertaken to identify and measure the key potential contaminants and compare concentrations in the water and sediment with regulatory thresholds established in Cambodia and within other jurisdictions. It was found that concentrations of organic contaminants such as phenols and benzene-type molecules (BETX) (water and sediment) and polycyclic aromatic hydrocarbons (PAHs) (sediment), as well as macro water quality indicators, were far higher than regulatory thresholds prescribe, posing threats to sensitive aquatic ecosystems into which such waste is introduced.
机译：在过去的十年中，柬埔寨的碾米厂和其他小型工厂中用于小型发电的稻壳气化已经迅速普及，并且在该设施离网的情况下具有良好的投资回收期。该技术被广泛认为是可持续的低碳电力选择。但是，已安装的气化技术会产生黑色废水，该废水经常未经处理就直接排放到当地环境中。进行了分析以识别和测量关键的潜在污染物，并将水和沉积物中的浓度与柬埔寨和其他司法管辖区设定的监管阈值进行比较。发现苯酚和苯型分子（BETX）（水和沉积物）和多环芳烃（PAHs）（沉积物）等有机污染物的浓度以及宏观水质指标均远高于规定的阈值。会对引入此类废物的敏感水生生态系统构成威胁。

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