In accordance with the requirements of the "Regulations on the Environmental Protection Management of Construction Projects" and the "Interim Measures for the Environmental Protection Acceptance of Construction Projects", on July 27, 2019, Shandong Huayang Deere Chemical Co., Ltd. organized an exhaust gas technical renovation project in Tai'an City. Acceptance meeting. The acceptance group consists of the construction unit-Shandong Huayang Deere Chemical Co., Ltd., the acceptance report preparation unit-Tai'an Huanhui Environmental Protection Technology Co., Ltd., the environmental assessment unit-Shandong Huantai Environmental Protection Technology Co., Ltd., the monitoring unit-Qingdao Jingcheng Testing Technology Co., Ltd. and It is composed of 3 technical experts (list of members of the acceptance team is attached). Ningyang County Environmental Protection Bureau sent staff to attend the meeting to simultaneously carry out the acceptance of the project's solid waste pollution prevention and control facilities. The acceptance team listened to the report on the implementation of the environmental protection of the project and the environmental protection acceptance monitoring of the completed project, inspected the site, and verified the relevant information. After serious discussion, the following are the following:

I. Basic situation of project construction

The project is located in the existing factory area of ​​Shandong Huayang Deer Chemical Co., Ltd. in Ningyang Chemical Industrial Park (formerly Ningyang County Biochemical Base). The actual total investment of the project is 3.364 million yuan and the actual environmental protection investment is 3.364 million yuan. In this project, the existing engineering tail gas treatment device is technically modified, and an ammonia catalytic reactor is added before the existing tail gas turbine, and the SCR denitration process is adopted.

The company entrusted Shandong Huantai Environmental Protection Technology Co., Ltd. in August 2018 to compile the environmental impact report form of Shandong Huayang Deere Chemical Co., Ltd. exhaust gas technical transformation project. On August 16, 2018, Ningyang County Environmental Protection Bureau approved the project with Ninghuan Approval Report Form [2018] No. 73. The project started construction in September 2018, completed in March 2019, and commissioned equipment in April 2019.

II. Project changes

According to the document of the General Office of the Ministry of Environmental Protection "Notice on Issuing the List of Major Changes in Construction Projects in Certain Industries in the Management of Environmental Impact Assessment" (Huanban [2015] No. 52, June 4, 2015) "The nature, scale, location, and production process of construction projects Significant changes occur in one or more of the five factors of environmental protection measures and environmental protection measures, and may lead to significant changes in environmental impacts (especially aggravation of adverse environmental impacts), which are defined as major changes", refer to the project’s environmental assessment documents and the actual construction of the project Circumstances, the construction nature, scale, location, and production technology of this project have not changed, so this project has no major changes.

Third, the construction of environmental protection facilities

1. Wastewater

The project is mainly to technically transform the company's existing engineering exhaust gas treatment device to reduce NOx emissions, and no new production and domestic wastewater.

2, exhaust gas

The project is mainly to carry out technical renovation of the company’s existing engineering exhaust gas treatment equipment to reduce NOx emissions. After the technical renovation is completed, the waste gas generated by the dilute nitric acid absorption tower in the nitric acid production process will be treated by one existing exhaust gas after SCR treatment. The air cylinder (67m high, 1.2m inner diameter) is discharged.

In addition, during the operation of the project, relying on the existing liquid ammonia tank area to provide ammonia for the project, the liquid ammonia tank area will produce a small amount of unorganized ammonia. By adopting measures such as strengthening personnel management and plant greening, the emission of unorganized waste gas is reduced.

3. Noise

The noise equipment of this project is mainly fans, pumps and so on. The project selected low-noise equipment and adopted noise reduction measures such as sound insulation and foundation vibration reduction to reduce the impact of project noise on the surrounding environment.

4. Solid waste

The solid waste of the project is mainly spent denitrification catalysts, whose main components are metals such as vanadium, tungsten, titanium, etc., which are hazardous wastes. The hazardous waste code is HW50 772-007-50. The catalyst is replaced every 5 years, and the replacement amount is 1.6t. , Entrust a qualified unit to conduct reasonable disposal. The solid waste of the project has been reasonably disposed of, and no secondary pollution should be produced.

5. Environmental management and risk prevention measures

The company has set up relevant environmental protection management systems, environmental risk investigation and management systems, prepared special emergency rescue plans, conducted drills on time, and registered with the Ningyang Environmental Protection Bureau, with the record number: 370921-2018-097-M. The company has adopted corresponding risk control measures for the liquid ammonia tank area.

6. Sanitation protection distance

According to the on-site survey, the closest sensitive target to the project area is the national village 320m to the north of the plant. The sanitary protection distance of this project is within 50m of the liquid ammonia tank area. There are no environmentally sensitive buildings such as schools, hospitals, and residential areas to meet hygiene requirements. Protection distance requirements.

Fourth, the debugging effect of environmental protection facilities

During the acceptance and monitoring period, the production load was about 79%, and the environmental protection facilities were operating normally.

1. Exhaust gas

The NOx emission concentration range of the project is 95~97mg/m3, and the emission rate range is 3.63~3.81kg/h, which meets the second-level standard of Table 2 of the Comprehensive Emission Standard of Air Pollutants (GB16297-1996) and the Emissions of Nitric Acid Industry Standard" (GB26131-2010) Table 5, "Shandong Provincial Comprehensive Emission Standard of Air Pollutants" (DB37/2376—2013) Table 2 Requirements for key control areas and amendments; the ammonia emission concentration range of the project is 9~14mg /m3, the emission rate range is 0.34~0.55kg/h, which meets the requirements of Table 2 of the "Emission Standard for Odor Pollutants" (GB14554-93).

The monitoring concentration range of ammonia at the project plant boundary is 0.02~0.05mg/m3, which meets the requirements of the secondary standard in Table 1 of the "Odor Pollutant Emission Standard" (GB14554-93); the monitoring concentration range of NOx is 0.022~0.03mg/m3, It meets the requirements of Table 2 of the "Comprehensive Emission Standard of Air Pollutants" (GB16297-1996) and Table 7 of the "Emission Standard of Nitric Acid Industry" (GB26131-2010).

2. Noise

The monitoring value range of daytime noise at the factory boundary is 49~58 dB(A), and the monitoring value range of night noise at the factory boundary is 42~48 dB(A), which meets the "Environmental Noise Emission Standard for Industrial Enterprises" (GB12348-2008) ) Class 3 standards (65 dB(A) during the day and 55 dB(A) at night) requirements.

V. Acceptance conclusion

The project implemented the construction project environmental impact assessment system and the "three simultaneous" system, implemented the environmental protection measures required by the EIA report form and its approval, and discharged pollutants in compliance with the environmental protection acceptance conditions for the completion of the construction project, and passed the acceptance.

Sixth, follow-up work suggestions

1. Modify and improve the relevant content of the acceptance monitoring report based on the opinions of the acceptance team.

2. In accordance with the "Interim Measures for the Environmental Protection Acceptance of Construction Projects", the acceptance report shall be disclosed to the public through the website or other methods that are convenient for the public within 5 working days after the completion of the preparation of the acceptance report, and the subsequent environmental protection procedures shall be improved. At the same time, submit the project completion acceptance materials to the environmental protection department and accept supervision and inspection.

3. Do a good job in the collection, storage, transportation and disposal of solid waste, timely collection, clearing and transportation, and prohibiting open storage to avoid secondary pollution to the environment.

4. Strengthen the daily maintenance and management of environmental protection facilities to ensure the normal operation of environmental protection facilities and the stable discharge of various pollutants; keep records of the operation and maintenance of environmental protection facilities.

Attachment: "List of Environmental Protection Acceptance Team of Shandong Huayang Deere Chemical Co., Ltd. Exhaust Gas Technical Reform Project Completion"