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THAI NGUYEN UNIVERSITY THAI NGUYEN UNIVERSITY OF AGRICULTURE AND FORESTRY - NGUYEN THI TRANG Topic title: “ASSESSMENT OF CURRENT ENVIRONMENTAL QUALITY AT CAO BANG CEMENT FACTORY IN DUYET TRUNG COMMUNE, CAO BANG CITY, CAO BANG PROVINCE” BACHELOR THESIS an Lu n va Mode of study : Full-time : International Training and Development Center si : 2010 - 2015 d oa nl w Batch ac Faculty : Environmental Science and Management th Major oi lm ul nf va an lu Thai Nguyen, 2015 at nh z z THAI NGUYEN UNIVERSITY THAI NGUYEN UNIVERSITY OF AGRICULTURE AND FORESTRY - NGUYEN THI TRANG Topic title: “ASSESSMENT OF CURRENT ENVIRONMENTAL QUALITY AT CAO BANG CEMENT FACTORY IN DUYET TRUNG COMMUNE, CAO BANG CITY, CAO BANG PROVINCE” BACHELOR THESIS an Lu : Full-time Major : Environmental Science and Management n va Mode of study th : 2010 – 2015 w : Assoc.Prof DO THI LAN d oa nl Supervisor : K42 AEP Year si Class : International Training and Development Center ac Faculty oi lm ul nf va an lu Thai Nguyen, 2015 at nh z z Thai Nguyen University of Agriculture and Forestry Bachelor of Science in Environmental Science and Degree program Management Student name Nguyen Thi Trang Student ID DTN1054120166 Assessment of current environmental quality at Cao Bang Cement Factory in Duyet Trung commune, Cao Bang city, Thesis title Cao Bang province Assoc.Prof Do Thi Lan Supervisor Abstract In recent years, environmental pollution is becoming worse Environmental protection is essential, especially for industrial areas Cao Bang Cement Factory is in Duyet Trung commune, Cao Bang province where the environment is being polluted Therefore, we have studied the establishment of “Assessment of current environmental quality at Cao Bang Cement Factory in Duyet Trung commune, Cao Bang city, Cao Bang province " The aim of the study is to assess the current an Lu sources of environmental pollution in Cao Bang cement factory and having measures to protect the environment as well Therefore, that citizen can study and n va work in a safe and clean environment In addition, this enables students to enhance ac th their knowledge, awareness, and responsibility for the environment We conducted si to collect documents, take samples to analyze the environmental quality Analyzing w criteria of environment in Cao Bang factory, we considered it as the basis of oa nl evaluating the current state of the environment The results of analyzing air sampled d showed that all the targets are within the permissible limits except the noise in lu an cement works is quite high (86.1 dBA) exceeds 1.1 dBA Moreover, analysis of nf va wastewater sampled in the factory in comparisons with QCVN 40:2011/BTNMT lm ul (National technical regulation on industrial waste water) showed that pollutants in waste water that are much smaller than the regulation allows However, index oi at nh z z numbers are still quite high such as the percentage of Mn is 0.641 mg/l while allowed standard is mg/l From results above, we can see that the environmental quality is severely polluted, so we have increased the effective solutions to minimize negative impacts on the environment, especially air environment Simultaneously, there are best solutions to minimize effects to local people as well as workers Environmental Keywords quality, Environmental pollution, Environmental protection, Citizen, Awareness, Assessment Number of pages pages Date of submission January 15, 2015 an Lu n va ac th si d oa nl w oi lm ul nf va an lu at nh z z 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.33.44.55.54.78.655.43.22.2.4.55.2237.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.66 an Lu n va ac th si d oa nl w oi lm ul nf va an lu at nh 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.99 z z 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.33.44.55.54.78.655.43.22.2.4.55.2237.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.66 I ACKNOWLEGDEMENT Firstly, I would like to say thanks to Assoc.Prof Do Thi Lan, my research supervisors, enthusiastic encouragement and useful critiques of this research work It has contributed immensely to the evolution of my ideas to complete my project on schedule Secondly, I would also like to extend my thanks to the technicians of Cao Bang Environmental Protection Agency who help in offering me the resources related to project Finally, I wish to thank my family for their support and encouragement throughout my study A special thanks to all those other persons who helped me in completing this report During the process of completing project, mistake is inevitable Thanks so much! an Lu n va ac th si d oa nl w oi lm ul nf va an lu at nh 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.99 z z 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.33.44.55.54.78.655.43.22.2.4.55.2237.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.66 II TABLE OF CONTENTS PART I: INTRODUCTION 1.1 Background and rationale 1.2 Objectives of study .2 1.2.1 To assess the current environment 1.2.2 To analize the sites which are exited and limited in manegement of environmental quality 1.2.3 To propose the solutions in environmental protection .2 1.3 Significations of the study 1.3.2 Practical significance PART II: LITERATURE REVIEW 2.1 Scientific basis of topics .5 2.1.1 Theoretical basis 2.1.2 Scientific basis .7 2.2 Factual basis an Lu 2.2.1 Status of research on the quality of air in the world n va 2.2.2 Status of research on the quality of air in Vietnam .10 ac th 2.2.3 Current environment in Cao Bang province 11 2.2.4 Overall assessment overview 12 si PART III: METHODOLOGY 13 nl w d oa 3.1 Subjects and study area 13 an lu 3.1.1 Research subject 13 nf va 3.1.2 Scope of study .13 lm ul 3.2 Location and time .13 3.3 Contents 13 oi at nh 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.99 z z 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Cement 25 4.3.1 Air environment 28 4.3.2 Water environment 30 4.3.3 Solid waste 33 4.4 Environmental protection of the cement factory in Cao Bang 34 an Lu 4.4.2 Exited measures in environmental protection in the operation of plan .44 4.5 Proposed solutions to reduce environmental pollution for Cao Bang Cement n va factory 44 ac th 4.5.1 Management Solutions 44 si w 4.5.2 Technical Solutions .46 oa nl 4.5.3 Propaganda and education solutions 47 d PART V: CONCLUSION AND PETITION 48 an lu 5.1 Conclusion 48 va oi lm ul nf BIBLIOGRAPHY .Error! 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quality of the factory 32 Table 4.7 The components of solid waste from living activities 33 an Lu n va ac th si d oa nl w oi lm ul nf va an lu at nh 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.99 z z 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into operation, the dust filter operates very well, not only contribute to reduce the environmental pollution, but also increase the yield of raw mill equipment up to 30% c Stage in furnace - Time to start construction: 01/06/2012 - Complete installation type of bag filter system JLMC 84-9 - Choose the new installation of the system for 02 kilns of clinker, select dust an Lu catcher JLMC 84-9 according to the European standards advanced technology n va - The basic specs of dust filter bag KMP 60-5: ac th + Polyester bag: Ø130 x 6000mm: 756 ones si + Blower motor: 132 KW d oa + Pressure = 3800Pa nl w + Flow Fan: 120 000 m3/h nf va an lu + Filter area: 1765 m2 oi lm ul - Time completed and put into use: 30/08/2012 at nh 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37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.33.44.55.54.78.655.43.22.2.4.55.2237.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.66 41 Discription: Hazes were collected inside by the fan inlet JLMC 84-9 Due to the impact between the bag and the air pressure which is inside the air blows after each work cycle, smoke is dissolved and passed through a cloth bag under the blower goes into the environment After installed and put into operation, the dust filter operates very well, not only contribute to reduce the environmental pollution 4.4.1.2 Measures to minimize negative impacts on the water environment Wastewater treatment diagram in the West The cooling water Canal Water line Over water an Lu Tank 200m3 Reuse for production Tank 20m3 Streams Rainfall n va ac th si Discription: oa nl w Water which is used for cooling equipment, living This type of water is no d turbin and reuse for production Excess water goes down the drain overflow and Na va an lu Lung stream machine oi lm ul nf There are two tanks with volume of 20m3 and 200m3 cleaned regularly by at nh 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.99 z z 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awareness of environmental protection, such as: - Establish rules of order, hygiene and environmental protection in the collective workers and factories - To launch movements of hygiene and environmental protection in the factory - Guidance classifications for officers and employees of the Company an Lu 4.4.1.4 Measures to minimize the impact of noise and vibration - Using spring or caoutchouc to reducing large vibratory from large machines All these devices are moving dynamic balance during installation n va ac th - Design of plant and machinery manufacturing system to ensure noise and si vibration that allows to set standards, and ensure sound insulation between the oa nl w production area to the work area and the area outside of the factory d - In addition, there are regular routine checks equipments which create noise, an lu equipped with anti-noise devices for workers such as ear plugs, masks, hats, glasses nf va occupational diseases and health protection as follows: oi lm ul - For employees working in rock drilling unit, should take measures to prevent at nh 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.99 z z 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accommodation for workers who cannot go on during the rainy b Minimize environmental risks - Check regularly and have plans to promptly remedy the problem of environmental equipment, technology equipment an Lu - Have good announcements when occor blasting n va - When there is a problem of environmental risks occurring, they may need to ac th stop operation of the equipment, evacuation of people from the location of the incident si and conduct troubleshooting oa nl w - When labor accidents or environmental incidents related to the plant, the plant d will be reported to the authorities jointly handled oi lm ul nf va an lu at nh 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mainly done in the factory area, should take measures to reduce dust during transportation of materials, ores, on the road to limit the impact on local people - For measures to reduce water pollution, the factory has done quite well, but the air environment has not yet to bring the best performance - No measures to reduce noise pollution in the region's manufacturing plant efficiently, especially drunk crushing area 4.5 Proposed solutions to reduce environmental pollution for Cao Bang Cement factory an Lu 4.5.1 Management Solutions n va * For the functional units th ac - Inspection, testing and production business, and using of resources should be si conducted regularly at all levels to detect violations to handle timely correction oa nl w Strengthening capacity for environmental monitoring, dedicated funding to maintain proper operation of environmental monitoring, establish mechanisms to share and d lu an exchange information with the national monitoring system, with management agencies nf va and research institutions to build environmental database on the status and changes in oi economic development lm ul environmental quality in the area for serving environmental management and socio- at nh 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.99 z z 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.33.44.55.54.78.655.43.22.2.4.55.2237.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.66 45 - Using of economic instruments in environmental management including the promulgation and enforcement of taxes, environmental protection fees, etc… Economic instruments will facilitate the company proactively plan for environmental protection and compliance through integrated environmental protection costs in the cost of production, sales This measure is being applied more and given satisfactory results - Increasing investment in environmental research and activities which are used to develop socioeconomic, with special focus on economic cost-benefit calculations in environmental impact assessment for the investment projects, policy, planning, development plans - For local government management where necessary to monitor, should have more close management * For cement factory - Maintaining of environmental pollution monitoring and reporting to the authorities as a basis for environmental management an Lu - There are part-time officers in charge of the safety issues of labor and n va environmental issues th ac - Developing plans for prevention and remedying of environmental incidents si w - Building regulations on environmental oa nl - Adding environmental management department to directly handle, collecting d environmental issues such as air, water, hazardous waste, waste an lu oi lm ul nf va - Applying the technology which produces less impact on the environment at nh 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accordance with the inspection and proper training Check process better: Modification of rules work, the rules in operating machinery and resuming recording to the technology process in order to have higher performance and generated less waste an Lu + Recycling: n va Reuse of waste materials in the same technological process or there are ac th effective applications in another process in the company si d environmental impact oa nl w + Improved product: the product can be improved in order to minimize the oi lm ul nf va an lu at nh 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protection Organization of short-term training courses on the environment through the activities of organizations, associations Organization of the general session in the new year's sanitation plant, World Environment Day and other occasions Through that education for environmental protection consciousness an Lu n va ac th si d oa nl w oi lm ul nf va an lu at nh 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.99 z z 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.33.44.55.54.78.655.43.22.2.4.55.2237.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.66 48 PART V CONCLUSION AND DISCUSSION 5.1 Conclusion The result of the study showed that the environment in factory is quite good Analysis of air sampled in the factory in comparisons with TCVN 7365: 2003, QCVN 05:2013/BTNMT, QCVN 06:2009/BTNMT, QCVN 26:2010/BTNMT (National Technical Regulation on industrial air quality) indicates that: All the targets are within the permissible limits except the noise in cement works is quite high (86.1 dBA) exceeds 1.1 dBA Analysis of wastewater sampled in the factory in comparisons with QCVN 40:2011/BTNMT (National technical regulation on industrial waste water) showed that pollutants in waste water that are lower than the regulation allows However, index numbers are still quite high such as the percentage of Mn is 0.641 mg/l while allowed standard is mg/l 5.2 Discussion an Lu However, on the basis of understanding the natural characteristics, socioeconomic, environmental status, and evaluating the effectiveness of waste n va management system, the impact of cement factory on environment and the measures th ac for that: Cao Bang Cement factory is operated for a long time (1997) with outdated the si w equipment and operating facilities Although the operation of the plant is bringing oa nl socioeconomic benefits, the negative impact on the environment is still not inevitable d Thus, managers in Cao Bang Cement factory had solutions to protect environment that lu va an including: the measures to minimize negative impacts on the environment, especially air environment Simultaneously, there are best solutions to minimize effects to local oi lm ul nf people as well as workers at nh 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.99 z z 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.33.44.55.54.78.655.43.22.2.4.55.2237.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.66 49 REFERENCES Abu-allaban and Abu-Qudais (2011) Aerosol and Air Quality Reseach, 11:802-810 Cao Bang Cement Join Stock Company – Construction (2013) The result of pollution treatment report based on the Decision No.990/QD-UBND of Cao Bang Cement Company on 24/04/2013 Cao Bang Cement Factory Cao Bang Environmental Protection Agency – Ministry of Resource and Environment (2006) Current situation of National environmental report State Publishing House Cao Bang Environmental Protection Agency (2010) Assessment of Cao Bang current situation of environment report Cao Bang Department of Resource and Environment Grady, C.P.L, Jr., and H.C Lim (1980) Biological Waste Water Treatment, Marcel Dekker, New York Hien, H.T & Ly, B.S (2007) Air environmental protection Publisher of Construction Khoa, L.V, Quynh, N.X & Viet, N.Q (2013) Environmental chemical indicators Ha Noi Educational Publishing House an Lu Metcalf, Eddy (2003) Technical wastewater treatment and reuse McGraw Hill n va New York th ac Ministry of Resource and Environment (2005) Decision No 22/2006/QD-BTNMT si on the application of ISO on environment Publisher of Labor-Social, Ha noi oa nl w Nong, N.N & Phuong, D.T.H (2006) Lecture of environmental management Thai d Nguyen University of Agriculture and Forestry, pp.11 lu va an Resource and Environment Research Center (1997) Report on environmental University oi lm ul nf impact assessment of the Cao Bang Cement Factory Ha Noi National at nh 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.99 z z 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.C.33.44.55.54.78.655.43.22.2.4.55.2237.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.66 50 The National Assembly of Viet Nam (2005) Environmental Protection Law Politic Publisher, pp.7 Quy, V (2011) Some problems of Global Environment Ha Noi National University World Summit Conference and Sustainable Development (2002) Jonhannesburg & Khoa, L.V (2001) Environmental Science Publisher of Education FICO Cement (2013) An overview of Cement Industry in Viet Nam Retrieved from http://ximangfico.com/tin-tuc/xi-mang/3044-tong-quan-nganh-cong- nghiep-xi-mang-viet-nam.html?language=en (Accessed on 22/10/2014) Hoa Binh Magazine, Science – Technology – Environment Column (2013) Current situation of environmental pollution in Vinh Son Cement Factory Retrieved from http://www.baohoabinh.com.vn/28/81122/Tinh_trang_o_nhiem_moi_truong_o_ Nha_may_xi_mang_Vinh_Son.htm (Accessed on 28/10/2014) Environmental Protection Column (2014) Effort in reducing greenhouse gases Retrieved from an Lu http://www.moitruong.com.vn/Home/Default.aspx?portalid=33&tabid=19&distid=15 n va 793 (Accessed on 25/11/2014) ac th si d oa nl w oi lm ul nf va an lu at nh 37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.55.77.77.99.44.45.67.22.55.77.C.37.99.44.45.67.22.99 z z 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