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Annual Report on the Self Monitoring Implementation of the North Sewage Treatment Plant in Suma Park in 2023

2024.01.12
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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