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Enterprise self monitoring program

Basic situation of enterprises
Company name: Dongguan huangyong Yinzhou Paper Co., Ltd.
Legal representative: Li Weier
Industry: paper making
Production cycle: continuous production
Address: Guangdong city of Dongguan Province Huang Chung Chudo town the first industrial zone
Contact: Li Xiliang
Tel: 13622613090
E-mail: 873194577@qq.com
Main production equipment: pulping equipment, paper making equipment
Wastewater treatment and discharge:
After the waste water from the production workshop is removed by coarse and fine grids, the flow enters into the water collecting tank, and then is lifted to the inclined screen through the lifting pump. The majority of fine fibers and suspended matter were removed under the action of the screen. Inclined screen interception gate slag by gravity flow into the lower sieve pulp pool, wastewater flows into the flocculation reaction pool. Cast flocculants and mixed in wastewater with flocculation reaction pool, flocculation reaction is easy to precipitate the formation of a large number of alum and wastewater. The wastewater is then entered into the primary sedimentation tank, and the physical and chemical precipitation is carried out to remove most of the suspended matter and organic pollutants in the sewage. The primary sedimentation tank is discharged to the water collecting pool, and the waste water is used in the workshop.
The waste water flows into the regulating tank and the water quality is adjusted to the pre acidification tank. The hydrolysis acidification of wastewater in the pre acidification tank can provide a good condition for the removal of COD from wastewater. The wastewater is pumped into the anaerobic reactor water distribution system through the lifting pump. In two, the first reaction chamber, mixed with granular sludge in a variety of microbes, COD in wastewater to obtain higher removal rate in a short period of time and a relatively high load in methanogenic bacteria under the action of COD into methane and collected for further processing by three phase separation. The effluent of the anaerobic reactor enters the aerobic and aerobic pool, and the waste water is in the aerobic section, so that the large molecules in the waste water can not be degraded and dissolved, and the biodegradability of the wastewater can be improved. In aerobic stage. The wastewater is treated by the uniform aeration and mixing of the jet aerator. In this process, the use of aerobic bacteria adsorption, oxidation, decomposition of organic compounds in wastewater, wastewater pollutants are constantly adsorbed and degraded. The oxygen required by the biochemical system is supplied by the blower. The aerobic tank effluent into the two sedimentation tank, wastewater sludge water separation in two sedimentation tank, sludge settling down by the suction machine suction part to return sludge biochemical system.
Two sink pool water into the return water tank, some of the waste water pumped to the workshop to reuse or pre acidification pool, and the other part of the waste water into the advanced oxidation treatment system and further treatment.
In the advanced oxidation treatment system, wastewater into homogeneous acid pool, adding concentrated H2SO4 agents, this adjustment of pH value of waste water, waste water pump to the advanced oxidation reaction tower, tower adding Fenton reagent: H2O2 and Fe2+, Fenton reagent and wastewater in the water distribution system, water circulating pump for mixing reaction the pollutants in wastewater, oxidation and decomposition of nonbiodegradable. Advanced oxidation tower outlet flow into the aeration tank, and aeration in the pool, and adding liquid callback pH value. After the callback pH value of wastewater into the PAC, PAM flocculation agent. Waste water flows into the final sedimentation tank, sludge settling down in the final settling tank, a suction machine suction pump, and then sent to the advanced oxidation sludge thickening tank. Most of the pollutants in the wastewater were removed during the sludge precipitation. The final sedimentation tank is discharged to the filter, the wastewater is filtered by a homogeneous filter layer, and the fine particles and colloidal substances can not be removed by precipitation and clarification. There is an on-line monitoring instrument in the metering tank, which can detect the emission of COD, ammonia nitrogen, flow data, and networking with the environmental protection agency, at any time by monitoring.
Wastewater treatment flow chart:

 

Monitoring content


Layout of monitoring points
Table 1 monitoring points, monitoring factors and monitoring frequency of pollution sources of the company.
Because the company did not use the chlorine bleaching process, so there is no need to monitor adsorbable organic halogen and dioxins.
Table 1 the location of pollution sources

The monitoring method refers to the combination of automatic monitoring, manual monitoring, manual monitoring and automatic monitoring"
Dongguan huangyong Yinzhou Paper Co., Ltd. bitmap

 

 

Monitoring time and working condition record
Record the time to carry out self monitoring, and to carry out their own monitoring of production conditions.
Monitoring analysis method, basis and instrument
Table 2 monitoring analysis method, basis and instrument

 

 

Monitoring quality assurance measures
Sampling and sample analysis are strictly implement the "Environmental Monitoring Quality Assurance Handbook", "environmental quality monitoring quality assurance manual (Second Edition)", "environmental monitoring technical specifications" and "environmental monitoring quality management regulations", and according to the "Guangdong province environmental monitoring quality assurance management (tentative)", Dongguan city environment protection monitoring station "quality manual" requirements. Specific measures are as follows:
1 during the monitoring period, the production load must be equal to or greater than 75% of the rated load.
2 reasonable layout of monitoring points, to ensure that the monitoring points of scientific and rational layout.
3 waste water monitoring
Waste water monitoring instruments in line with national standards or technical requirements. Sampling, transportation, storage, analysis of the whole process in strict accordance with the "technical specification of environmental monitoring (water and wastewater)" and "Environmental Quality Monitoring Water Quality Assurance Handbook" (Second Edition) regulations, codes, passwords, parallel parallel code quality control quality control measures in the process of laboratory analysis.
4 noise monitoring: in noise monitoring before and after the calibration of the sound level of noise statistics analyzer.
5 monitoring and analysis methods adopted by the national standard (or recommended) analysis method, the monitoring personnel through the examination and hold a certificate of qualification, all monitoring instruments by the metrological department for verification and use within the validity period.
Strict implementation of monitoring data three level audit system.
Implementation standards

 

Disclosure of monitoring results
1, the monitoring results of open time
The monitoring data completed in the daily monitoring of the second day of publication or within five days of holidays is announced, the first working day after the holiday holidays all published monitoring data.
2, the monitoring results of the open way
Upload data to Guangdong province key pollution source integrated management platform (http://www.epinfo.org/)
3, the implementation of the monitoring program
The monitoring program was started in October 14, 2016.


 

 

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