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Domestic garbage unit treatment cost:
Table 16 unit governance cost statistics of domestic garbage Domestic garbage unit treatment cost（yuan/ton） （assuming the unit cost is unchanged） Harmless clearance Sanitary landfill compost Simple landfill incineration 25/20 35 60 120 8 Note: The unit cost of cleaning and transportation unit is 25 in the eastern region and 20 in the western region. For convenience, we take the average value of 22.5 Virtual governance cost of domestic garbage=x1+y1+z1
x1=m×(z-x) y1=n×(y+ z) z1=r× z
The processing cost of domestic garbage can be obtained by calculation:
Table 17 Virtual governance cost statistics of domestic garbage 2010-2015 virtual governance cost of domestic garbage/10,000 yaun 2010 701,087.35 2011 763,350.65 2012 865,918.25 2013 943,956.65 2014 1,017,596.35 2015 1,127,863.95
3.3 2010-2015 Water Pollution Virtual Governance Cost
Table 18 Introduction of solid water pollution variables Introduction of solid water pollution variables The industrial COD emissions The industrial ammonia nitrogen emission The petroleum emission The heavy metal emission The urban COD emission The urban ammonia nitrogen emission A1 B1 C1 D1 E1 F1 The next section considers the cost of water pollution control for land use projects. Based on the above two treatment costs, we still choose the virtual
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treatment cost method to calculate the annual water pollution treatment cost from 2010 to 2015. By looking up relevant materials, we know that water pollution involves a wide range of fields, including planting, livestock and poultry breeding, industry, urban life and rural life. However, due to the lack of systematic treatment of sewage in agricultural production, we only consider the cost of virtual pollutants in industry and urban life. Here, we consider the water pollution of small community projects as urban life water pollution, while large national projects are considered as industrial sector water pollution.
Pollutants in industrial wastewater include COD, ammonia nitrogen, petroleum and heavy metals. Here we consider the virtual governance cost of four pollutants, then the calculation formula of the virtual governance cost of industrial enterprises is:
The virtual governance cost of the industrial sector=∑(pollutant emissions× virtual governance costs per unit of pollutants× virtual removal rate of pollutants), the total virtual governance cost is the sum of the virtual governance costs of various pollutants.
Virtual domestic wastewater treatment costs include virtual management cost of COD and ammonia nitrogen virtual governance cost, namely virtual wastewater treatment cost = ∑ (pollutant discharge unit pollutant of virtual management cost virtual pollutants removal rate), namely industrial COD discharge quantity A1, industrial ammonia nitrogen emissions B1, C1 oil discharge, heavy metal emissions D1, cities COD discharge E1 and ammonia nitrogen emissions for F1.
The cost of treatment of each pollutant is: Table 19 The cost of treatment of each pollutant Unit cost statistics (assuming the cost is the same) 800/ton Unit ammonia nitrogen treatment cost Unit COD governance cost 100/ton Unit oil treatment cost 500/ton Unit heavy metal treatment cost 1000/ton
It should be noted that the virtual removal rate of pollutants is not 100%, the removal rate of COD is 80%, the removal rate of ammonia nitrogen is 50%, the removal rate of petroleum is 80%, and the removal rate of heavy metals is 50%. The annual emissions of various pollutants are:
Table 20 the annual emissions of industrial pollutant Industrial Annual heavy Industrial COD ammonia Annual oil metal annual nitrogen emissions/ emissions / emissions/10,000 annual 10,000 tons ton tons emissions /10,000 tons
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2015 2014 2013 2012 2011 2010 293.50 311.30 319.50 338.50 354.80 434.80 21.70 23.20 24.60 26.40 28.10 27.30 1.50 1.60 1.70 1.70 2.05 1.01 313.70 333.70 366.30 441.20 623.00 444.85 2015 2014 2013 2012 2011 2010 Table 21 the annual emissions of urban pollutant Annual ammonia nitrogen Urban COD annual emissions per city emissions / 10,000 tons / 10,000 tons 846.90 134.10 864.40 138.10 889.80 141.40 912.80 144.60 938.80 147.70 803.30 93.00 Then calculated by the above data:
Industrial COD Treatment Cost=A1*80%*800
Industrial Ammonia Nitrogen Treatment Cost=B1*50%*100
Petroleum treatment cost=C1*80%*500 Heavy metal treatment cost=D1*90%*1000 Urban COD Treatment Cost=E1*80%*800
Urban Ammonia Nitrogen Treatment Cost=F1*50%*100
Virtual cost of industrial water pollution=industrial COD treatment cost+ industrial ammonia nitrogen treatment cost+ petroleum treatment cost+ heavy metal treatment cost, namely:
Table 22 Virtual cost of industrial water pollution Industrial water pollution treatment cost / 10,000 yuan 2015 189553.23 2014 201062.03 2013 206422.97 2012 218679.71 2011 229353.07 2010 280081.04 Virtual cost of industrial water pollution=industrial COD treatment cost+
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industrial ammonia nitrogen treatment cost+ petroleum treatment cost+ heavy metal treatment cost, namely:
Table 23 virtual cost of urban water pollution Urban water pollution urban governance cost / 10,000 yuan 2015 554825.70 2014 566345.70 2013 582953.40 2012 598001.40 2011 614988.90 2010 524723.40
3.4 Total Governance Data Analysis
Based on the above three data, we put the three aspects of governance cost
together to form the time governance cost chart, as shown in the figure below:
Chart 1 Industrial integrated virtual governance cost
Industrial integrated virtual governance costs from 2010 to 2015 9,000,000.00 8,000,000.00 7,000,000.00 6,000,000.00 5,000,000.00 4,000,000.00 3,000,000.00 2,000,000.00 1,000,000.00 0.00 2010 2011 2012 2013 2014 2015 Total / 10,000 yuan Industrial air pollution virtual treatment cost / 10,000 yuan Industrial water pollution treatment cost / 10,000 yuan Industrial solid pollution / 10,000 yuan
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Chart 2 life total virtual governance cost from 2010 to 2015
The cost of industrial governance in 2011 was relatively larger than that in 2010. However, after 2011, the cost of industrial governance began to decline. Compared with the cost of industrial pollution governance, the cost of living management was much higher. The trend is to increase, then decrease, then increase and then decrease. Overall, the cost of living treatment fluctuates between about 245 billion yuan. According to the overall data trend, we find that both the cost of industrial governance and the cost of living governance are decreasing year by year. The main reason for the decrease is that the negative impacts of land use decrease year by year, which also reflects the global increasing attention to the impact of human activities on ecosystem services.
3.5 Model Analysis Over Time
From the above data, we use the linear regression method to calculate the trend of the model with time. For the industrial governance cost, we set the year=x, the governance cost(10000yuan)=y, and then use the regression line equation to calculate The coefficients a~, b~
:
Calculate a~=8000000 b~=-214213The relationship between x and y can be obtained as follows: y=-214213x+8000000, that is, the governance cost decreases with time, so the following trend graph can be obtained:
Chart 3 industrial governance cost
Industrial governance cost chart 8,400,000.00 8,200,000.00 life total virtual governance cost from 2010 to 2015 30,000,000.00 8,000,000.00 7,800,000.00 7,600,000.00 25,000,000.00 Water pollution comprehensive virtual governance cost / 10,000 yuan 7,400,000.00 20,000,000.00 7,200,000.00 Comprehensive virtual treatment cost of air pollution / 10,000 yuan y = -214213x + 8000000 Comprehensive virtual management cost of domestic garbage / 10,000 yuan 2014 2015 Total / 10,000 yuan 15,000,000.00 7,000,000.00 6,800,000.00 6,600,000.00 10,000,000.00 5,000,000.00 2011 2012 2013 0.00 2010 2011 2012 2013 2014 2015
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