On September 13th, the “2013 National Pollution Prevention and Control Comprehensive Inspection Team†headed by Tan Zhenghua, Director of the Southern China Supervision Center of the Ministry of Environmental Protection visited the Dongfeng Commercial Vehicle Engine Plant and Huanglong Reservoir to inspect and guide the disposal of hazardous wastes. Drinking water source protection. Director of Pollution Prevention Department of Hubei Provincial Environmental Protection Department Lan Guozheng, Deputy Director of Shiyan Municipal Government Office Hu Zeyong, Director of Energy Conservation and Emissions Reduction and Environmental Protection Division of Dongfeng Group Liu Zhizao, Director of Equipment Technology Management Department of Dongfeng Commercial Vehicle Co., Ltd. Sun Dazhao and other leaders Accompany.
It is understood that the purpose of this inspection is to improve the level of pollution prevention and control throughout the country. At the Dongfeng Commercial Vehicle Engine Factory, the inspection team first listened to the disposal of hazardous waste at the Dongfeng Commercial Vehicle Engine Plant, the development of the clean production audit, and the application of clean production of the new power plant assembly. The inspection team inquired in detail about the disposal of hazardous waste in the Dongfeng Commercial Vehicle Engine Plant and the effect of the robot line spraying on the paint line, and went to the site for on-site inspection. The inspection team affirmed Dongfeng's investment in environmental protection development in recent years and requested all units of Dongfeng Company to adhere to the concepts of green development, recycling development, and low-carbon development, and actively explore ways to use reforms and markets. Innovative approaches, scientific and technological methods to solve environmental problems, establish and improve long-term environmental protection mechanisms, and ensure that one river flows into Beijing.
Protein skimmer
Protein skimmer is the most commonly used by aquarium and aquaculture professionals to describe the removal of suspended and dissolved waste from fish tanks by means of air floatation, which is a relatively simple process which relies on the physical and chemical properties of coagulation.
Protein skimmer enhances the oxygenation of a system both biologically and physically. Biological oxygen demand is reduced by the direct removal of biodegradable organic carbon (protein), as well as bacteria in the water column. Physically, the increased surface area provided by the injection of large volumes of air (in the form of small bubbles) into a column of water creates a condition for gas exchange. The addition of a small dose of ozone to the process, with its coagulative and disinfectant properties, makes skimming possibly the best component one could add to a modern life support system for Aquaculture.
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