Ensign Holding Ensign Heavy Industries
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Ensign Industry lays emphasis on product upgrading and equipment level improving. By taking new process, new techniques and new equipments as the leading and it has eliminated the old process, techniques and equipments, optimizing the level of citric acid and alcohol production equipments continuously. By taking these measures, the company’s Energy Conservation and Emissions Reduction has become the industry leader for now.

Depending on technological innovation and uses for reference of domestic and foreign high-tech technologies, combining with the actual situation of production and operation, taking advantage of technology research development and innovation of science and technology, Ensign industry innovated and used new techniques and process, such as thick mash fermentation, Liquid chromatography, calcium hydrogen extraction, multiple condensation and Steam tractor fan etc. Energy consumption indexes decreases significantly and energy saving effect is obvious. The company was awarded the Energy Saving Advanced Enterprise of Weifang and Enterprise of Outstanding Contribution to Energy Saving and other honors.

Energy-saving technological transformation projects also brought about emission reduction. By strategies of reusing three wastes, environmental governance and comprehensive utilization of resources, Ensign reduced three-waste discharge and realized trash to treasure and cyclic development. In 2014, Ensign was awarded Energy Conservation and Environment Protection Model Enterprise by China Biotech Fermentation Industry Association.

EnvironmentalProtection Information

Enterprise Basic Information

    Weifang Ensign Industry Co., Ltd. that the manufacturerof citric acid and special grade alcohol. was established in 1996. Unifiedsocial credit code:913707001657698540.

    Legal representative: Jian Li.

    Address: No.1567, Changsheng Street, Changle,Weifang,  Shandong, China.


Pollution DischargeInformation

    1.Waste Gas

        Ensign has invested in Renovation Project of Boiler Flue Gas Ultralow –Discharge, upgrading and reconstruction to the primary environmental protection facilities since 2016.

        Dust removal: Add electric dust precipitation on the base of bag-type dust remover.

        Desulfurization: a newly built desulfurizing tower, the other 3 towers add spray level, synergy ring, tray and so on.

        Denitration: add low-nitrogen combustion facility.

        The project was completed in July 2017 and achieved ultralow –emission requirement. Waste gas discharge is lower than Heat-Engine Plant Air Pollutant Emission Standard of Shandong Province (DB37/664-2013), amendmentNo.2 ultralow –emission standard(SO2≤35mg/Nm3、NOx≤100mg/Nm3、Dust≤10mg/Nm3), meanwhile Ensign gets pollutant emission license(serial number :91370700165767698540001P).

    2.Waste Water

       Anaerobe and aerobe combination treatment is applied to wastewater treatment process. COD and ammonia nitrogen are the main pollutant.

       Ensign has built anaerobic treatment facility IC Tower and aerobic treatment facility oxidation ditch. All facilities function normally.

       Waste water indirectly discharges into town’s sewage network after being treated by effluent treatment station, entering into Changle Sapphire Water Affairs Development Co., Ltd.

       Ensign has begun to execute Citric Acid Industrial WaterPollutant Emission Standard GB19430-2013(COD≤300mg/l、ammonianitrogen≤30mg/l)since July 1,2016.

       Aim at reinforcing to monitor waste water discharge, Ensign has a waste water discharge outlet that is installed with on-line automatic monitoring equipment which contacts with government environmental protection administration.

Emergency Information

    According to the requirements from environmental protection administration, Ensign compiles Contingency Plan for Emergent Environmental Incident and records it with Changle county environmental protection bureau at January 8, 2015.Record number is 3707CLI2015002.

Environmental Impact Assessment on Construction Project

    All company’s construction projects have environmental impact assessment according to the relevant requirements of environmental protection and put into operation after environmental protection acceptance check of construction project.

    Ensign will constantly increase investment in environmental protection according to the requirements of environmental protection’s development and make new contribution to environmental protection, taking on greater social responsibility.