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971.
972.
分析了人造毛皮生产中恶臭气体的来源、特点,提出了水吸收与碱吸收相结合的处理工艺。试运转结果表明, 该工艺合理,操作管理简单,具有较好的处理效果。 相似文献
973.
974.
纯碱厂在生产纯碱过程中要排放出大量碱性废液 ,如果利用其作为净化锅炉烟气的脱硫剂 ,不仅减低了脱硫剂费用 ,而且消除了SO2 污染。本文在简单分析旋流板塔式除尘脱硫装置的结构和工作原理的基础上 ,探讨了利用碱性废液进行烟气除尘脱硫的主要影响因素 ,并找出了最佳操作条件。试验结果表明 :利用纯碱厂排放的碱性废液———一次盐泥进行锅炉烟气脱硫可以取得较高的净化效率 ,同时解决了因为碱性废液排放而给周围水域带来的污染。旋流板塔式除尘脱硫装置结构简单 ,脱硫效率高 ,并且运行安全稳定 ,是一项值得推广的技术 相似文献
975.
硫化氢废气治理研究进展 总被引:9,自引:0,他引:9
综合评述了硫化氢废气的各类净化方法及最新的研究进展。硫化氢废气的净化有吸收法、吸附法、氧化法、分解法和生物法。本文对超级克劳斯法和分解法研究进展进行了重点阐述。 相似文献
976.
977.
Waste plastics recycling by an entrained-flow gasifier 总被引:1,自引:0,他引:1
Takatoshi Shoji Kenjiro Shindoh Hironori Ozaki Atsushi Sodeyama 《Journal of Material Cycles and Waste Management》2001,3(2):75-81
We studied an entrained-flow gasification process which efficiently converts waste plastics to energy at a high energy recovery
rate. Waste plastics, after being shredded to <8 mm or <14 mm, were fed into an entrained-flow gasifier with air and oxygen.
In the gasifier, organic substances were pyrolyzed, partially combusted, and then converted into synthetic gas (CO, H2) at a high temperature (over 1600 K). The clarified gasification characteristics were that the lower heat value (LHV) of
the product gas was over 4.2 MJ/Nm3 and the cold gas efficiency was approximately 60%. Other inert substances in the wastes such as ashes and metals were melted
into slag and condensed on bag filters. The bag filters and a water scrubber removed impurities such as dusts, heavy metals,
and hydrogen halides from the product gases. Solid hydrocarbons, which include char and soot, were removed at a hot cyclone
and on the bag filters.
Received: July 19, 2000 / Accepted: October 3, 2000 相似文献
978.
This study analyses the general-equilibrium impacts of an international climate change response policy on the economy of Western Australia (WA), one of the most mining-based and energy-intensive states of Australia. It finds that emissions would fall by up to 11% from the base level in WA. However, such environmental benefits emanate at some costs to the state economy; in terms of foregone gross state product, the costs are up to 3% of the base level. Indeed, the actual costs and benefits depend on the precise design of the climate change response policy as well as on the other policies within which it operates. For example, when emission quota permits are sold to industries and no tradeable carbon credits (i.e. credits for the carbon sequestrated in Kyoto forests) are granted, emissions decline by about 8% and GSP falls by about 3% of the base levels. If carbon credits are tradeable, however, the environmental benefits could be increased and the GSP cost could be reduced substantially. Also, the reduced economic activity caused by emission abatement results in a modest fall in net government revenue, despite the additional revenue from permit sales in some cases. Accordingly, government’s fiscal package surrounding the emission permits would influence the emission abatement impacts on the economy. With regard to the effects on the structure of the state economy, the oil and gas industry suffers only a slight contraction but the energy-supplying sector as a whole contracts substantially. It is therefore not surprising that the impacts on the WA economy of curbing emissions by energy and transport industries alone are quite significant when compared to those resulted from all industries’ compliance with the abatement scheme. It needs to be noted that the model projections analysed in the paper are based on simplifying assumptions and tentative scenarios, and hence should be viewed with caution and not be understood as unconditional forecasts. 相似文献
979.
中国西部本底大气中CO的连续测量 总被引:16,自引:2,他引:14
在中国西北部的瓦里关全球基准站(36°17'N,100°54'E,3810m asl)建立了气相色谱-汞置换法大气CO连续测量系统.组装调试和运行标定表明,色谱方法的基线稳定,分离度高,检测方法可靠,系统具有高自动化的操作性能和严格的质量控制,其设计完全符合世界气象组织(WMO)全球大气本底测量的要求.根据采样现场大气CO浓度的变化,采用经国际比对的CO标准气系列,用峰高外标法设定可调整的标准工作曲线计算环境CO浓度,系统对CO的检测限低至1×10-9(V/V),检测精度小于0.1%,准确度在±0.05%以内,可提供我国本底地区近地层大气CO连续而精确的现场测量结果. 相似文献
980.