First, the general situation of enterprises
Company is located in Jing County in Xuancheng City Economic Development Zone, main products for tea polyphenols and caffeine, widely used in the fields of food, medicines, health products, daily-use chemical, sold to domestic and Europe and the United States, Japan, Korea and other markets, supplier is trusted by the many well-known enterprises at home and abroad, has a certain brand effect, yield and market share among the same industry in the first three. To meet the growing market demand and enterprise"s long-term development, in accordance with the overall urban planning in Jingxian County retreat city park, in Jing County Economic Development Zone in 71 acres of land requisition, implementation of the company"s overall relocation and expansion. Construction project in two phases, the implementation of the first phase of the project has an annual output of 100 tons of natural caffeine, 300 tons of tea polyphenol production capacity, after the implementation of the second phase project of the plant with an annual output of 300 tons of natural caffeine, 1000 tons of tea polyphenol production capacity. The main building facilities include: integrated workshop, raw material warehouse, finished product warehouse, boiler room, sewage treatment station, etc.. Strict implementation of the first phase of the project environmental protection "three simultaneous" system, the installation and commissioning of various pollutants treatment facilities in place, and in March 2013 completed and put into operation. After trial operation, in March 2014 through the Jingxian County Environmental Protection Bureau acceptance.
Two, waste water, waste gas, waste residue treatment measures
Companies for different pollutants have the corresponding waste water, waste gas, waste residue treatment measures.
1, wastewater treatment using biochemical treatment technology. Production wastewater mainly consists of two parts of wastewater of high concentration and low concentration wastewater, which high concentration wastewater mainly from tea polyphenol extract, and low concentration wastewater source in equipment cleaning water, site flushing water, equipment cooling water. Wastewater management net inflow grille canal, large pieces of debris blocking, into the regulation pool; after the micro electrolysis pretreatment into the coagulation reaction tank, the flocculation and desorption, flowing into the beginning of sedimentation tank; anaerobic fermentation and degradation after solid-liquid separation, the supernatant fluid flowing into the hydrolysis acidification tank, the sludge is discharged into the sediment pool; hydrolytic acidification wastewater pump to send to the UASB pool, UASB effluent into the sedimentation tank, the precipitated wastewater flowing into contact oxidation pond; contact oxidation pond effluent flowing into the final sedimentation tank, final settlement pool artesian water into clean water pool, after decolorization compliance emissions to the development zone of the sewage pipe network.
2, boiler flue gas treatment process using multi-stage water film desulfurization and dust removal and multi tube dust removal process. Exhaust gas is mainly produced by burning rice husk boiler, boiler exhaust gas through the ceramic multitube precipitator and the dust in flue gas is the first grade dust catcher, re entering the multi-stage water film desulfurization and dust removal, achieve the purpose of purifying and purification of flue gas through a draught fan sent to the chimney high-altitude emissions. Ash water sedimentation tanks after repeated use.
3, after the extraction of tea leaf and after combustion of rice husk ash, by the specialized company acquisitions as a renewable resource to be comprehensive utilization; after the collection of company of the daily life of living refuse unification, by the sanitation department home cleaning.
4, all monitoring points are in line with the noise values of the industrial enterprises in the environmental noise emission standards (12348-2008 GB), did not exceed the standard conditions.
Three, monitoring basis
1, "the people"s Republic of China Environmental Protection Law"
2, "the people"s Republic of China air pollution prevention and control law"
The monitoring management of the 3, the former State Environmental Protection Administration Decree No. thirty-ninth "environment"
4, the general office of the State Council issued 2013 No. 4 "" 12th Five-Year "total amount of major pollutants emission reduction assessment" in 2013;
5, the Ministry of environmental protection, the National Bureau of statistics, the national development and Reform Commission, supervision department file UNCED [2013 14], "" 925 "total amount of major pollutants emission reduction monitoring measures" in 2013.
6, "state key monitoring enterprise to monitor and Information Disclosure Measures" (trial);
7, the relevant national pollutant discharge standards, monitoring methods standards, etc..
Four, monitoring content
1, waste water monitoring
Every half month in the sewage treatment system to take a water sample, the company"s laboratory to detect COD, ammonia nitrogen, pH value.
2, waste gas monitoring
A flue gas sampling port is arranged on the chimney of a 6t/h boiler in the company, and the sampling and monitoring of Jingxian County environmental monitoring station.
Five, monitoring points and frequency
1, waste water monitoring
Monitoring content monitoring frequency monitoring point
COD 1 / half of the sewage treatment system, the total discharge
Total drainage of 1 times / half of the sewage treatment system
PH value 1 / half of the total discharge of sewage treatment system
2, waste gas monitoring
Monitoring content monitoring frequency monitoring point
Dust, sulfur dioxide, nitrogen oxides 1 times / year flue gas sampling port
Six, monitoring standards and limits
1, wastewater discharge standards and limits
Wastewater discharge standards for the "integrated wastewater discharge standard" (GB8978-1996)
COD (mg/L) chroma (double) pH value
10050 6-9
2, emission standards and the implementation of emission standards
Emission standard for exhaust gas emission standards for "boiler air pollutant emission standards" (GB13271-2001)
The pollutant emission concentration standard (mg/ m fand)
200 types of coal dust coal fired boilers in the two category II period
Sulfur dioxide coal fired boilers in all areas of the second period 450
Nitrogen oxides
Seven, quality control
1, reasonable arrangement of monitoring points, sampling, monitoring personnel to comply with the sampling procedures and state regulations of the monitoring and analysis methods, and carefully record.
2, the strict implementation of the monitoring program, fill in the records, data, and keep the record etc..
Eight, monitoring results announced
1, monitoring information released by the company website.
2, the contents of the announcement: enterprise name, waste water discharge