Bioremediation of lead by lead-resistant microorganisms, isolated from industrial sample

Lead contamination in water is a widespread problem throughout the world and results from industrial use and processing of lead ore. Bio-availability of lead can be hazardous for children and causes mental retardation. The use of lead free petrol is one measure to check this pollution, but this heavy metal is also present in industrial effluents and need to be removed before these effluents are discharged to natural land or water and as well as to the environment. Using bioremediation, bacteria could render lead non-bioavailable would provide an alternative option for detoxifying this contaminant in the environment. The property of some species of bacteria and algae, to extract metals from their surroundings, has been utilized to purify industrial effluents. The first step in devising a bioremediation strategy is to identify candidate bacterial strains capable of modifying the contaminant. Biotechnological approaches are recommended for extraction of metal forms can be grown in ponds where effluents (rich in heavy metals) are discharged. The microbes will extract the heavy metals and sequester them inside their cell membranes. The goal of the present study was to examine the capacity of lead resistant bacteria and bioremediation of lead contaminated water.

Quality of effluents from Hattar Industrial Estate

Of 6634 registered industries in Pakistan, 1228 are considered to be highly polluting. The major industries include textile, pharmaceutical, chemicals (organic and inorganic), food industries, ceramics, steel, oil mills and leather tanning which spread all over four provinces, with the larger number located in Sindh and Punjab, with smaller number in North Western Frontier Province (NWFP) and Baluchistan. Hattar Industrial Estate extending over 700 acres located in Haripur district of NWFP is a new industrial estate, which has been developed with proper planning for management of industrial effluents. The major industries located in Hattar are ghee industry, chemical (sulfuric acid, synthetic fiber) industry, textile industry and pharmaceuticals industry. These industries, although developed with proper planning are discharging their effluents in the nearby natural drains and ulti- mately collected in a big drain near Wah. The farmers in the vicinity are using these effluents for growing vegetables and cereal crops due to shortage of water. In view of this discussion, there is a dire need to determine if these effluents are hazardous for soil and plant growth. So, effluents from different industries, sewage and normal tap water samples were collected and analysed for pH, electrical conductivity (EC), total soluble salts (TSS), biological oxygen demand (BOD), chemical oxygen demand (COD), total nitrogen, cations and anions and heavy metals. The effluents of ghee and textile industries are highly alkaline. EC and TSS loads of ghee and textile industries are also above the National Environmental Quality Standards (NEQS), Pakistan. All the effluents had residual sodium carbonates (RSCs), carbonates and bicarbonates in amounts that cannot be used for irrigation. Total toxic metals load in all the effluents is also above the limit i.e. 2.0 mg/L. Copper in effluents of textile and sewage, manganese in ghee industry effluents and iron contents in all the effluents were higher than NEQS. BOD and COD values of all the industries are also above the NEQS. On the whole, these effluents cannot be used for irrigation without proper treatment otherwise that may cause toxicity to soil, plants and animals as well add to the problems of salinity and sododicity. Similarly, these effluents cannot be used for fish farming.

Lead Pollution Research of Resident Children around Some Industrial Park

Lead is an important toxic heavy metal among environment pollution. Some industrial parks were founded in 2005 including non-ferrous metal processing and smelting plants. In order to identify the consequence of lead pollution on children around the industry park, blood samples of neighboring children were collected and analyzed in laboratory. The results showed that the involved children have suffered serious harms from Pb pollution. Almost 75% of the children＇s blood lead levels （BLLs） exceeded the limit of normal blood lead. Worse still, 26.17% of them were at the level of Moderate lead poisoning. The group aged 0-7 showed more susceptibility to Pb than that aged 8-14. Only 19.05% of the children aged 0-7 were at the level of normal blood lead, compared with 45.45% in the group aged 8-14. There was no significant difference between the values of blood lead concentration for male and female or among different age groups. Some approaches, which include controlling the Pb pollution from the industry park and safeguarding the residents, esp. the children were suggested.

Evaluation of Lead Exposure by Hand Wipes: A Review of the Effectiveness of Personal Hygiene on Industrial Sites

To evaluate the effectiveness of personal hygiene (handwashing) amongst workers at industrial sites to remove lead from their hands, a retrospective analysis of hand wipe samples was conducted using data collected by two contractors from two bridge painting projects for total lead using method ASTM E-1979-17/EPA SW846 7000B. Exposures resulted from the removal of lead-based paint from the structure and trace elements of lead found in the abrasive blast media. In total, six work tasks were evaluated and sixty unique hand wipe samples were evaluated. Thirty samples were collected during the worker’s lunch break, after they had reportedly washed their hands with a further 30 collected at the end of the workday following the same protocol. To be included in this evaluation, the contractors were required to follow NIOSH Method 9105 (Lead in Dust Wipes-Dermal Surfaces) with subsequent analysis of samples for total lead by an American Industrial Hygiene Association (AIHA) accredited laboratory. All 60 samples contained detectable lead. The lead exposures ranged from 19.5 μg to 3420 μg. The geometric mean for the samples collected was 337 μg. These results indicate that current personal hygiene practices at the evaluated sites are not effective at removing lead from worker’s hands during and after the workday. They also suggest that the residual lead measured on the workers’ hands, at the end of the shift, is likely contributing to the elevated blood lead levels in this population.

Researches on Countermeasures and the Status Quo of Agricultural Industrialized Cluster in Henan Province

On the basis of the introduction of the connotation of agricultural industrialized cluster,the thesis introduces the competitive advantages of agricultural industrialized cluster as follows:firstly,it makes the agricultural production factors cluster and curtails the agricultural production costs;secondly it enhances the innovation abilities of industries;thirdly it improves the urbanization level of rural areas and increases farmers' income.The thesis also analyzes the status quo of agricultural industrialized cluster in Henan Province,points out the advantages of resources,cost,location and so on,and discuses the existing problems of the agricultural industrialized cluster in Henan Province as follows:firstly,the scale of agricultural industrialized cluster is small and the industrialized chain is short;secondly,there is a shortage of leading enterprises,and the radiating effect within industrialized cluster is not prominent;thirdly,the organization degree of agricultural industrialized cluster is weak,lacking scientific innovation ability.In order to solve the existing problems,the corresponding countermeasures are put forward as follows:firstly,take the market as the orientation,strengthen the policies formulation and accelerate the development of agricultural industrialized cluster in Henan by leaps and bounds;secondly,choose suitable developing models of agricultural industrialized cluster.

Selection,distribution and way of development of leading industries in the Beijing-Kowloon economic belt

In this paper, the development issue of leading industries of Beijing Kowloon Economic Belt is discussed. According to the regional base and the development conditions, the development strategy of Beijing Kowloon Economic Belt should concentrate on developing the following leading industries: Machine building and electronics, textile and its deep processing industry, food processing, chemical industry, and power industry. Meantime, the industrial centers such as Nanchang, Jiujiang, Shenzhen, Huizhou, Ji'an, Fuyang, Shangqiu, and so on should be constructed particularly.

Selection of Regional Leading Industry Based on Comparative Advantage——A Case of Xiqing District,Tianjin City,China

Development status of agricultural industry in Xiqing District of Tianjin City in China is introduced.The intensive level of agriculture is relatively high in this region;the new-type agriculture develops rapidly;and the sales income of agricultural byproducts is the main source of household income.Based on the principles of market potential,production resources intensity,and associated promotion,a total of 3 indices for measuring the comparative advantage are selected,which are comparative advantage index,scale advantage index,and comprehensive advantage index.Based on the data analysis,competitive industries in this region are determined.Result shows that economic crops and aquaculture industry have relatively great location quotient,but aquaculture is not suitable for Xiqing District,due to its natural condition,industrial tradition and bases,and output value.Therefore,economic crop is selected as the leading industry in Xiqing District.

Selection of Leading Industry in Anshun Experimental District Based on Analytic Hierarchy Process

Analytic Hierarchy Process is selected according to the selection method of leading industries by both domestic and foreign scholars. Leading industries which can accelerate the overall economic development of Anshun Experimental District is taken as the target layer; and market demand, efficiency standards and local conditions are taken as the criterion layers, so as to construct the select model of leading industry and to choose the leading industry in Anshun Experimental District. Result shows that the priority order of the leading industry selection in Anshun Experimental District is as follows: tourism > pharmacy > transportation > energy > food processing > characteristic agriculture > package and printing > automobile industry > mining > electric engineering.

China Autos' Past, Present & Future—An Interview with Miao Yu, Deputy Director of the Automobile Industry Department, Ministry of Machine-building Industry

After the second world war, Japan and Korea realized their dream for automobiles. The development of the automobile industry has given an impetus to their whole national economy. When will the Chinese dream for automobiles come true? With this question in mind, our reporter interviewed Mr. Miao Yu. He briefed the reporter on the past,

Recent iSuppli WiMAX Report Validates ZTE's Leading Position in the Industry

ZTE Corporation announced on November 21, 2007, that it has recently been validated by a renowned market

China's Booming Machinery Industry——Modern enterprise management leading the Yantai CMC Bearings Co., Ltd. to prosperity

On July 3, 1994, recognized by the International DNV and the State Quality Appraisal Centre, the Yantai CMC Bearings Co., Ltd. was awarded the ISO9002 (87 version) certificate and gained three firsts—the first enterprise to obtain an ISO9002 certificate in the field of bearings production, in foreign trade circles and in Yantai: The ISO9002 (94 version) certificate was conferred on the enterprise after the first DNV reexamination in March 1995. Yearly growth in output and efficiency enables the enterprise to become the best in the bearings production field. It cannot be denied that the China National

ZTE Positioned in the Leaders Quadrant in Leading Industry Analyst Firm Report

ZTE Corporation announced on July 14, 2010 that it has been positioned in the leaders quadrant in Gartner＇s Magic Quadrant for Softswitch Architecture Report.

ZTE Co-organized Global WiMAX Operation Congress in Singapore with Leading Industry Players

ZTE Corporation was among the key participants in the recently concluded WiMAX Operation Congress,

链主企业生态主导力提升产业链韧性路径研究——以比亚迪和中国新能源汽车产业链为例

提升产业链供应链韧性和安全水平已成为新发展阶段推动我国高质量发展的关键着力点,具备生态主导力的链主企业在产业链韧性提升过程中扮演着支撑者、引领者和组织者的角色。以比亚迪和中国新能源汽车产业链为研究对象,采用扎根理论方法进行探索性单案例研究,探究链主企业生态主导力能力维度和产业链韧性提升路径。研究发现:①链主企业生态主导力包括技术创新引领能力、产业协作整合能力、数字转型赋能能力3个维度;②链主企业生态主导力通过促进产业链关键核心技术突破、产业链协同配套、产业链数字化转型3条路径提升产业链韧性,技术创新引领能力能够促进产业链关键核心技术突破,实现强链、补链,产业协作整合能力能够促进产业链协同配套,实现稳链、固链,数字转型赋能能力能够促进产业链数字化转型,实现延链、优链,从而显著提高产业链风险抵御能力、冲击恢复能力、链条升级能力。研究结论有助于拓展链主企业生态主导力与产业链韧性相关研究,为链主企业提升生态主导力和增强产业链韧性提供实践参考。

Nylon industry trend: What are the four leading companies doing?

In addition to low temperature resistance, nylon has outstanding characteristics in strength, wear resistance and moisture absorption, which makes nylon fabrics have great advantages in outdoor, sports, cold-proof, casual wear and other fields. At present, nylon has become the second largest chemical fiber after polyester in the textile field, accounting for 7.36% of the world’s total chemical fiber output.

High-tech Industrial Zones Take Lead in Industrial Innovation

China’s 56 leading high-tech industrial zones have led the country’s industrial innovation, playing an important role in the nation’s social and economic development, a government statement said on Jan 1.

数字化转型的溢出效应:扩散还是虹吸?——基于行业内领军企业与行业间产业链双重视角

本文基于创新扩散理论与外部性理论,利用2011—2021年中国上市企业和投入产出表数据,探讨行业内领军企业及行业间产业链上下游企业数字化转型对焦点企业转型的影响。研究结果显示:行业领军企业和产业链上下游企业数字化促进焦点企业转型,且产业链上游促进作用高于下游。一方面,数字化转型存在扩散效应,表现在领军企业与产业链上下游企业通过管理层决策同群效应和知识溢出效应促进焦点企业数字化转型;另一方面,数字化转型也存在虹吸效应,表现在产业链下游企业对焦点企业产生研发人才的虹吸效应,领军企业对焦点企业产生数字资本的虹吸效应。本文的研究对于提高领军企业引领带动作用、提升产业链协同效率具有重要启示,并为建设现代化产业体系提供新思路。

中国龙头科技企业技术创新能力驱动路径研究——基于fsQCA研究方法

为推动中国科技企业高质量发展,提升科技企业创新能力,对中国龙头科技企业技术创新能力进行深入探究。基于企业内部研发资金投入、研发人员投入和税收优惠、地方补贴及行业技术5个前因条件,阐述其对中国龙头科技企业技术创新能力的影响。采用模糊集定性比较分析法对26家中国不同行业上市龙头科技企业进行分析,构建前因条件对创新能力的影响框架,结果发现:从整体看,企业研发投入、地方政府补贴以及行业技术通过不同条件组态影响龙头科技企业创新能力;从企业资源看,相较于研发资金,研发人员对龙头科技企业创新能力的影响更加显著;从外部环境看,市场和政府采用优势互补方式驱动龙头科技企业创新,且市场行业技术对企业创新的影响更显著,地方政府补贴对企业创新发挥显著激励作用。

Leading Industries of China Bao'an Group

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新质生产力与我国有色金属产业高质量发展的关系:以铅锌产业为例

高质量发展是发展新质生产力的首要任务,发展新质生产力的过程中要处理好新兴产业和传统产业的关系,决不能忽视和放弃传统产业。有色金属作为我国国民经济、国防工业、科学技术发展必不可少的基础原材料和重要战略物资,是建设现代化强国的重要支撑和保障,也是最具代表性的传统产业之一。生产过程的特性导致有色金属行业在发展过程中面临更严峻的能耗、排放和污染的问题和困难。创新是引领发展的第一动力,在近十年的发展过程中,有色金属行业产业遵循国家政策指引、积极响应国家号召,依托技术创新和改造在工艺升级、节能减排、绿色低碳等方面取得长足的进步,为行业实现现代化高质量发展奠定了坚实的基础。进入新发展阶段后,有色金属行业上下游、左右岸交叉关联融合程度更深,绿色化、数字化、智能化、高端化转型升级需求更加迫切,此时,新质生产力的提出为行业未来面向高质量发展、重塑竞争新优势提供了全新动力和根本指引。有色金属品种多、应用广、生产流程和规模差异化较为明显,但是全行业产业借力新质生产力实现转型升级和高质量发展的需求和目标是一致的。我国是世界上最大的铅锌生产国和消费国,铅锌产业是有色金属产业最具代表性的传统产业之一。本文以铅锌产业为例,结合铅锌产业近年来在国家支持和指导下取得的发展成果,肯定和明确创新赋能传统产业发展和转型的重大意义以及传统产业未来借力和发展新质生产力的需求和潜力;从政策研究角度梳理近三年与有色金属行业高质量发展紧密相关的针对性政策文件,分析国家在未来对有色金属行业特别是铅锌产业发展新质生产力的支持和指引;针对铅锌产业在新发展阶段发展新质生产力方面已经或未来可能面临的问题和挑战,提出政策需要与时俱进、持续的技术创新能力培育、高素质人才培养和造就,以及坚持不懈地推进国际合作等相关建议。