Sewage Treatment Plant in the North of Suma Industrial Park
Annual Report on the Implementation of Self Monitoring in 2023
Ⅰ、 Adjustment and changes in monitoring plan
According to the requirements of the "Measures for Self Monitoring and Information Disclosure of National Key Enterprises" document (Huan [2013] No. 81) issued by the Ministry of Environmental Protection, our factory has taken active action and formulated the "2020 Self Monitoring Plan for the North Sewage Treatment Plant in Suma Park", which has been submitted to the Environmental Protection Bureau of Suzhou City.
Our factory has determined the self testing items for COD and ammonia nitrogen in the inlet and outlet water according to the requirements. In terms of administrative management, we have established a self testing implementation leadership group led by the factory director for the northern sewage treatment plant in Suma Park. The group consists of four technical and equipment personnel from the factory, all of whom have participated in relevant technical training at the provincial and municipal levels and obtained relevant certificates.
According to the requirements of the city, our factory has signed a technical service agreement with Anhui Bishui Technology Company for self testing. A third party will ensure the validity, timeliness, and safety of the self testing data. Our factory has a dedicated person responsible for technical communication and support with the technical personnel of Bishui Company. Anhui Bishui Technology Company strictly uploads monitoring data at a frequency of every 2 hours to ensure independence. Our factory has two laboratory staff members who conduct manual testing. They have formulated the "Detailed Rules for COD and Ammonia Nitrogen Testing of the North Sewage Treatment Plant in the Su Ma Park", which tests the water quality entering and leaving the plant every day, and regularly compares the data with their own online monitoring. Other indicators are entrusted to Anhui Aimile Engineering Technology Co., Ltd. for manual monitoring. From the comparison of the past three months, it can be seen that manual and automatic detection errors are similar and mutually supportive, effectively ensuring the accuracy of data. In terms of implementation methods, it can be confirmed that the collection of COD, ammonia nitrogen and other data is scientific, effective and accurate, thereby ensuring the discharge requirements of the effluent quality of the sewage treatment plant.
No adjustments or changes have been made to the detection plan
Ⅱ、 Annual production days, monitoring days, monitoring points, monitoring indicators, annual monitoring frequency, compliance frequency, and exceedance situation (see table below for details)
Statistical Table of Annual Production Days and Monitoring Days
monitoring content monitoring project | monitoring point | Annual production days | Number of days to be monitored | Actual monitoring days | |
monitoring indicators | wastewater | main discharge outlet | 365 | 365 | 365 |
Factory boundary noise | Surrounding the factory boundary | 365 | 4 | 4 |
Annual monitoring frequency, compliance frequency, and exceedance situation table for each monitoring indicator
monitoring content monitoring project | monitoring point
| Actual monitoring frequency | Number of compliance times
| Exceeding the standard
| |
monitoring indicators | ammonia nitrogen | main discharge outlet | 365 | 365 | 0 |
Chemical Oxygen Demand | main discharge outlet | 365 | 365 | 0 | |
PH | main discharge outlet | 12 | 12 | 0 | |
suspended solids | main discharge outlet | 12 | 12 | 0 | |
Total Phosphorus | main discharge outlet | 12 | 12 | 0 | |
Total Nitrogen | main discharge outlet | 12 | 12 | 0 | |
bod5 | main discharge outlet | 12 | 12 | 0 | |
Anionic surfactant | main discharge outlet | 12 | 12 | 0 | |
chroma | main discharge outlet | 12 | 12 | 0 | |
Number of Escherichia coli like bacteria | main discharge outlet | 12 | 12 | 0 | |
animal and vegetable oils | main discharge outlet | 12 | 12 | 0 | |
petroleum | main discharge outlet | 12 | 12 | 0 | |
Total mercury | main discharge outlet | 12 | 12 | 0 | |
alkyl mercury | main discharge outlet | 12 | 12 | 0 | |
total cadmium | main discharge outlet | 12 | 12 | 0 | |
total chromium | main discharge outlet | 12 | 12 | 0 | |
hexavalent chromium | main discharge outlet | 12 | 12 | 0 | |
Total Arsenic | main discharge outlet | 12 | 12 | 0 | |
Total Lead | main discharge outlet | 12 | 12 | 0 | |
Factory boundary noise | Surrounding the factory boundary | 4 | 4 | 0 |
Ⅲ、 Annual discharge of wastewater pollutants (see table below for details)
Annual discharge of wastewater pollutants
monitoring indicators | emissions(t/a) | Average emission concentration(mg/L) | Discharge standard(mg/L) |
Chemical Oxygen Demand | 211.603 | 22.31 | 50 |
ammonia nitrogen | 3.815 | 0.48 | 5 |
Total Phosphorus | 1.408 | 0.19 | 0.5 |
Total Nitrogen | 76.437 | 9.31 | 15 |
biochemical oxygen demand | 58.945 | 7.425 | 10 |
suspended solids | 55.013 | 6.917 | 10 |
Anionic surfactant | 1.117 | 0.138 | 0.5 |
Number of Escherichia coli like bacteria | 1789724126.502 | 277.5 | 1000 |
animal and vegetable oils | 8.164 | 0.433 | 1 |
petroleum | 3.343 | 0.452 | 0.452 |
Total mercury | Not detected | 0 | 0.001 |
alkyl mercury | Not detected | 0 | Not detected |
total cadmium | Not detected | 0 | 0.01 |
total chromium | Not detected | 0 | 0.01 |
hexavalent chromium | Not detected | 0 | 0.05 |
Total Arsenic | Not detected | 0 | 0.1 |
Total Lead | Not detected | 0 | 0.1 |
PH | \ | 7.3 | 6-9 |
chroma | \ | 6 | 30 |
Ⅳ、Types, quantities, disposal methods, quantities, and destinations of solid waste
type
| Generate quantity(t/a)
| disposal method
| Disposal quantity(t/a)
| whereabouts
|
excess sludge
| 1962.91 | comprehensive utilization | 1962.91 | Suixi Yihai Environmental Protection Technology Co., Ltd |
Ⅴ、 Monitoring results of the impact on the surrounding environmental quality as required
Monitoring of factory boundary noise in the first quarter
Monitoring period
| monitoring results
| compliance status
| |
daytime
| East Factory Boundary
| 58.3 | meet the standard
|
South Factory Boundary | 57.8 | meet the standard
| |
West Factory Boundary | 57.3 | meet the standard
| |
North Factory Boundary | 58.4 | meet the standard
| |
night | East Factory Boundary
| 43.4 | meet the standard
|
South Factory Boundary | 45.4 | meet the standard
| |
West Factory Boundary | 46.4 | meet the standard
| |
North Factory Boundary | 45.2 | meet the standard
|
Monitoring Status of Factory Boundary Noise in the Second Quarter
Monitoring period | monitoring results
| compliance status
| |
daytime
| East Factory Boundary
| 51.7 | meet the standard |
South Factory Boundary | 57.0 | meet the standard | |
West Factory Boundary | 56.3 | meet the standard | |
North Factory Boundary | 53.4 | meet the standard | |
night | East Factory Boundary
| 45.0 | meet the standard |
South Factory Boundary | 51.2 | meet the standard | |
West Factory Boundary | 48.0 | meet the standard | |
North Factory Boundary | 50.0 | meet the standard |
Monitoring Status of Factory Boundary Noise in the Third Quarter
Monitoring period | monitoring results | compliance status | |
daytime
| East Factory Boundary | 52.7 | meet the standard
|
South Factory Boundary | 55.7 | meet the standard
| |
West Factory Boundary | 55.8 | meet the standard
| |
North Factory Boundary | 57.0 | meet the standard
| |
night | East Factory Boundary | 44.7 | meet the standard
|
South Factory Boundary | 49.4 | meet the standard
| |
West Factory Boundary | 47.6 | meet the standard
| |
North Factory Boundary | 49.5 | meet the standard
|
Monitoring Status of Factory Boundary Noise in the Fourth Quarter
Monitoring period | monitoring results | compliance status | |
daytime
| East Factory Boundary | 50.7 | meet the standard |
South Factory Boundary | 52.0 | meet the standard
| |
West Factory Boundary | 50.7 | meet the standard | |
North Factory Boundary | 50.5 | meet the standard | |
night | East Factory Boundary | 43.3 | meet the standard
|
South Factory Boundary | 42.3 | meet the standard
| |
West Factory Boundary | 43.6 | meet the standard
| |
North Factory Boundary | 46.4 | meet the standard |