炼油污水处理场常见故障及处理

对炼油污水处理场的一般常见故障进行分析、讨论，提出改进意见和随机处理手段。对污水处理场的生产技术管理及污水处理场设计、改造提出见解     

The use of bioluminescent biotests for study of natural and laboratory aquatic ecosystems

A set of bioluminescent tests was developed to monitor water quality in natural and laboratory ecosystems. It consisted of four bioluminescent systems: luminous bacteria, coupled enzyme system NADH:FMN-oxidoreductase-luciferase and triplet enzyme systems with alcohol dehydrogenase and trypsin. The set of biotests was applied for a small forest pond (Siberia, Russia), laboratory microecosystems polluted with benzoquinone and a batch culture of blue-green algae. Thereby effects of natural water compared to those of models of heavy pollution and “bloom” of blue-greens on the bioluminescent tests were revealed. The set of biotests was not affected by a natural seasonal variability of water quality in the unpolluted pond, but responded to the heavy pollution and the “bloom” of blue-greens. The set of biotests could be recommended as the alarm test to control the acute toxicity of natural water bodies.     

Heavy metal monitoring of marine algae from the Turkish Coast of the Black Sea, 1998-2000

Concentrations of Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn were determined in macroalgae samples collected from the Turkish Coast of the Black Sea. Certain algae species were chosen among the green, brown and red algae species at Sile and Sinop sampling stations from 1998 to 2000. In general, as regards the influence of the collection sites on the whole metal accumulation, Sinop is considered to be more polluted than Sile. The concentrations of the heavy metals in Cystoseira barbata algae are compared with previous studies in the same stations. The results showed that all metal levels have gradually decreased during past years. At the same time, Cd, Co, Cr, Cu, Fe, Ni and Pb levels in the present study are lower than in Bosphorus and Marmara Sea algae. However, Mn and Zn concentrations are higher than Bosphorus but lower than at Marmara. According to these findings the heavy metal pollution decreased in Turkish Coast of the Black Sea during the years investigated.     

长湖水质现状调查及评价

通过对长湖13个点位的采样监测结果表明：（1）长湖的各项主要指标均已超标,特别是化学需氧量（CODcr）、高锰酸盐指数（OC）、总氮（TN）、总磷（TP）等超标严重;（2）从总体上看,长湖水体监测点位的水质是,上游污染情况较重,下游的出水口及大湖湖心水质稍好;（3）采用单项水质参数评价方法对长湖水质进行评价,水体已达到劣Ⅴ类.     

酶体外定向分子进化技术:环境生物污染治理中的新星

环境生物技术在环境控制与污染治理中的应用主要是利用微生物降解和转换污染物.一些人类合成的化学物质由于具有高毒性,且难以被自然界微生物降解,已经严重威胁生态环境和人类的健康.生物治理以其低成本、完成矿质化和实现原位处理等特点,成为较好的治理技术.体外定向分子进化技术是一种发现新的生物表型和新酶的好方法,DNA改组是重要的体外分子进化技术,成功地改造了许多在医药、工业和环境保护等的商业酶.综述了近年来体外定向分子进化技术在环境生物污染治理中的研究进展和应用.     

环境生物技术的研究现状及发展前景

环境生物技术（Environmental Biotechnology）简称EBT，是近20年来才定义的新型边缘学科。环境生物技术主要由生物技术、工程学、环境学和生态学组成。一般认为生物工程即生物技术，是指综合应用生物学、化学和工程学等手段，直接或间接地利用生物体本身，生物体某些组分或某些特殊机能，生产有用物质的一门综合性科学体系。它的产生和发展涉及多种学科，既反映了基础科学研究的最新成果，也体现了工程科学开拓出来的新技术和新工艺。     

平均综合污染指数在地面水污染分级中的应用

根据对污染物污染分担率，在确定地面水体主要污染物的基础上，计算相应水体不平均综合污染指数、对地面水污染程度进行分级。     

Children’s fear in traffic and its association with pedestrian decisions

Introduction: Research on risk for child pedestrian injury risk focuses primarily on cognitive risk factors, but emotional states such as fear may also be relevant to injury risk. The current study examined children's perception of fear in various traffic situations and the relationship between fear perception and pedestrian decisions. Method: 150 children aged 6–12-years old made pedestrian decisions using a table-top road model. Their perceived fear in the pedestrian context was assessed. Results: Children reported greater emotional fear when they faced quicker traffic, shorter distances from approaching traffic, and red rather than green traffic signals. Children who were more fearful made safer pedestrian decisions in more challenging traffic situations. However, when the least risky traffic situation was presented, fear was associated with more errors in children’s pedestrian decisions: fearful children failed to cross the street when they could have done so safely. Perception of fear did not vary by child age, although safe pedestrian decisions were more common among the older children. Conclusions: Children’s emotional fear may predict risk-taking in traffic. When traffic situations are challenging to cross within, fear may appropriately create safer decisions. However, when the traffic situation is less risky, feelings of fear could lead to excessive caution and inefficiency. Practical applications: Child pedestrian safety interventions may benefit by incorporating activities that introduce realistic fear of traffic risks into broader safety lessons.     

木材工业粉尘污染与防治对策探讨

从宿迁市木材工业粉尘污染控制现状存在的问题入手,分析了木材工业企业粉尘污染的原因,提出了控制粉尘污染的若干建议。保护环境是实现木材工业可持续发展的必然要求,必须从工艺、技术和装备方面控制生产过程中的粉尘,使作业环境和大气污染排放达到国家环境保护标准和法规的要求。     

浅析湿地教育与公众参与

湿地作为地球三大生态系统之一,因其独特的生态结构和功能受到越来越广泛的关注。加强公众的湿地教育,提高人们的湿地保护意识,让更多的人参与到湿地保护工作中来,已成为人们关注的热点。文章从中国湿地教育与公众参与的需要出发,分析了目前中国湿地教育及公众参与的现状及存在的问题,并从物质文化、制度文化、精神文化形式角度探讨了湿地教育与公众参与的实施。