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根据对多管旋风除法器热态除尘效率大量测试实践,讨论了影响多管风除尘器除尘效率的制造质量,整体安装要求、运行管理及锅炉运行等因素,建议在应用推广中应予以重视。 相似文献
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建造一所粪尿分集式生态卫生厕所需300——400元。通过引进这种先进技术,可改善农村生活环境,提高农村卫生条件,防止疾病,减少水资源的利用与污染,并能充分利用养分。 相似文献
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吸附胶体浮选法处理电解钴废水的研究 总被引:6,自引:0,他引:6
采用吸附胶体浮选法处理电解钴废水。用十二烷基磺酸钠(SLS)作浮选剂,用FeCl3和Al2(SO4)3作混凝剂,浮选后废水可达到国家工业废水排放标准(3mg/L)。为实际废水的处理提供了可靠的依据。 相似文献
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Rocky intertidal habitats frequently are used by humans for recreational, educational, and subsistence-harvesting purposes,
with intertidal populations damaged by visitation activities such as extraction, trampling, and handling. California Marine
Managed Areas, particularly regulatory marine reserves (MRs), were established to provide legal protection and enhancement
of coastal resources and include prohibitions on harvesting intertidal populations. However, the effectiveness of MRs is unclear
as enforcement of no-take laws is weak and no regulations protect intertidal species from other detrimental visitor impacts
such as trampling. The goal of this study was two-fold: (1) to determine impacts from human visitation on California mussel
populations (Mytilus californianus) and mussel bed community diversity; and (2) to investigate the effectiveness of regulatory MRs in reducing visitor impacts
on these populations. Surveys of mussel populations and bed-associated diversity were compared: (1) at sites subjected to
either high or low levels of human use, and (2) at sites either unprotected or with regulatory protection banning collecting.
At sites subjected to higher levels of human visitation, mussel populations were significantly lower than low-use sites. Comparisons
of mussel populations inside and outside of regulatory MRs revealed no consistent pattern suggesting that California no-take
regulatory reserves may have limited effectiveness in protecting mussel communities. In areas where many people visit intertidal
habitats for purposes other than collecting, many organisms will be affected by trampling, turning of rocks, and handling.
In these cases, effective protection of rocky intertidal communities requires an approach that goes beyond the singular focus
on collecting to reduce the full suite of impacts. 相似文献
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阐述了利用87C51单片机对振弦式传感器信号进行数据采集、分析处理、显示的基本原理.系统软件采用87C51汇编语言,以及模块化程序设计技术,使得软件维护方便,可靠性高. 相似文献
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简要分析化验室采样过程中存在的问题,并就如何对石化化验室采样过程实行HSE管理提出一些具体的管理办法。 相似文献
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蒋蔚琪 《石油化工环境保护》1998,(4):17-21
着重阐述了该厂系统划分的情况,系统划分的经济比较,主体单元的设计特点,得出一个利用老厂的给排水公用工程设计必须根据各老厂的具体情况,优化给排水系统划分。 相似文献
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