环境服务业核心竞争力研究——以城市污水处理服务业为例

环境服务业对于减轻环境污染、改善生态环境、促进环境与经济、社会协调发展具有重要意义。研究建立了环境服务业核心竞争力评价指标体系．对11个污水处理厂开展调研研究．运用层次分析法评价污水处理服务业的核心竞争力,旨在为提高环境服务业的社会经济和环境综合效益提供理论借鉴。     

天津临港工业区循环经济发展思路

天津临港工业区作为滨海新区重要组成部分,港口经济特点突出,是我国临港型工业发展的典型代表。从港口工业一体化港区联动的循环经济产业体系、围海造陆特色区域的循环经济发展新模式、公用工程岛资源能源集成共享网路和循环经济支撑体系多维角度,构建临港型工业区循环经济发展思路,探索临港型区域发展循环经济的途径和模式,以期为我国同类区域循环经济发展提供经验借鉴。     

依靠科技进步节能减排,提高钢铁行业发展的内力

节能减排是我国经济发展中必须解决的问题,特别是高耗能产业更应首当其冲。我国钢铁行业节能减排任务很重,但依靠科学技术的进步,提高了企业发展的内力,取得了一定的成绩。但是,钢铁业总能耗依然占到全国总能耗的14%以上,今后面临的节能减排任务仍很艰巨。     

浅析鹤岗市环保产业发展及对策

从鹤岗市环保产业现状出发,立足我国环保产业发展方向,对鹤岗市环保产业现状、发展中存在的问题和障碍,进行了分析和探讨,并在此基础上提出了发展环保产业的对策。     

发展循环经济 保护生态环境——以洛阳生生乳业有限公司农业循环经济发展模式为例

以洛阳生生乳业开展的循环经济模式为例,进行了产业模式介绍,分析了发展循环经济与环境保护的关系,进行了经济效益、社会效益、及环境效益的分析。     

钢铁工业发展循环经济要解决的关键问题

作为经济发展的重要基础产业,钢铁工业在我国国民经济建设中发挥了不可替代的作用。针对钢铁工业发展过程中存在的矛盾和问题,提出发展循环经济,建设资源节约型、环境友好型钢铁工业重点要解决的几个问题。     

美国污染物排放标准对制定我国锡工业污染物排放标准的启示

在分析美国污染物排放标准体系和排放标准法制化管理的基础上,提出我国锡工业污染物排放标准制定中应注意的事项。并指出我国污染物排放标准不适合用标准化管理,应借鉴美国的经验,走法制化管理的道路,通过健全的法律机制,保障锡工业污染物排放标准的制定和实施。     

Natech guide words: A new approach to assess and manage natech risk to ensure business continuity

The risk posed by natural hazards to the technological systems is known as Natech risk. It is different from the more widely known and studied risk posed by such sites to the environment and society. Though currently, available risk assessment techniques recognize Natech, the specific qualitative technique for Natech risk assessment and reduction has not yet been developed. After analyzing past data of Natech accidents, relevant guide words have been suggested in this study. These guide words will help anticipate Natech risk and visualize the Natech scenario. Once the Natech risk is identified, corresponding risk reduction measures can be taken to avoid possible Natech accidents and consequences.     

铁炭微电解法深度处理制浆造纸废水的研究

采用铁炭微电解法对制浆造纸工业中生化处理后的废水进行深度处理研究,考察了废水的初始pH值、反应时间、铸铁屑、活性炭以及H2O2投加量对微电解反应效果的影响.得出的最佳反应条件为:溶液初始pH值为3.0、活性炭投加量8.0 g/L、铸铁屑40.0 g/L、H2O2 7.17 mmol/L以及反应时间60 min.适量H2O2的加入对铁炭微电解反应有明显的强化作用,可使CODcr的去除率增加13.71%.强化微电解反应后再采用8.0 g/L的Ca(OH)2混凝处理,总CODcr和色度去除率分别达到75%和95%.以强化的铁炭微电解与Ca(OH)2混凝联用深度处理后,水质可以达到国家造纸工业水污染物排放一级标准(GB 3544-2001).     

Screening for a new Streptomyces strain capable of e cient keratin degradation

Keratinous wastes could be degraded by some microorganisms in nature. Native human foot skin （NHFS） was used as sole nitrogen source to screen microorganisms with keratin-degrading capability. From approximately 200 strains, a strain of Streptomyces sp. strain No. 16 was found to possess the strongest keratinolytic activity, and the total activity in the culture was 110 KU/ml with specific activity of 2870 KU/mg protein （KU： keratinase unit）. Substrate specificity test indicated that the crude keratinase could degrade keratin azure, human hair, cock feathers and collagen. The optimal pH of the crude keratinase ranged from 7.5 to 10 and the temperature ranged from 40℃ to 55℃. Metal chelating agent ethylenediamine tetraacetic acid obviously stimulated the keratinolytic activity but suppressed the proteolytic activity. To our knowledge, this is the first report on specific induction of keratinases by NHFS from an actinomycete. Moreover, excellent characteristics of its crude keratinase may lead to the potential application in waste treatment and recovery, poultry and leather industry, medicine, and cosmetic development.