Method for simulating and constructing sea oil pollutant emission reduction operation cost based on Monte Carlo method

Abstract

The invention discloses a method for simulating and constructing sea oil pollutant emission reduction operation cost based on a Monte Carlo method. The method comprises the steps: carrying out statistical analysis based on operation data of a plurality of groups of existing offshore oil fields of the same type, and obtaining the value range of the concentration distribution of various pollutants in the wastewater of each oil field; based on the treatment capacity of different processes in three stages of oil removal, air floatation and filtration and the value range and the distribution function of the removal rate of the various pollutants, applying a Monte Carlo method to carry out multiple random experiments; calculating the effluent concentration of the pollutants in each process and each stage; calculating the pollutant reduction amount according to the water treatment amount of each link and the water inlet and outlet pollutant concentration difference, and analyzing the pollutant emission reduction amount and the operation cost of offshore oilfield wastewater treatment facilities. On the basis of a limiting condition that wastewater treatment stably reaches the standard, the emission reduction amount of the offshore oilfield pollutants is maximum, the treatment cost of the oilfield wastewater is lowest, and online simulation and prediction of the treatment of the offshore oilfield pollutants are facilitated.

Description

technical field [0001] The invention relates to a waste water treatment and emission reduction process, in particular to a method for simulating and constructing the operating cost of the emission reduction of marine oil pollutants based on the Monte Carlo method. Background technique [0002] Compared with land wastewater treatment, offshore water treatment has the characteristics of short process and closed cycle, which makes it more difficult, and information such as water quality and quantity cannot be monitored and adjusted at any time. At the same time, the wastewater treatment system includes multiple process links such as oil removal, air flotation, and filtration. The upstream and downstream are mutually restricted, and the system cannot adjust the equipment parameters and the dosage of chemicals in time according to the quality of the influent water. These factors lead to the inability of the effluent treated to reach the standard stably, and the water quality of t...

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Problems solved by technology

[0002] Compared with land wastewater treatment, offshore water treatment has the characteristics of short process and closed cycle, which makes it more difficult, and information such as water quality and quantity cannot be monitored and adjusted at any time

At the same time, the wastewater treatment system includes multiple process links such as oil removal, air flotation, and filtration. The upstream and downstream are mutually restricted, and the system cannot adjust the equipment parameters and the dosage of chemicals in time according to the influent water quality.

These factors lead to the inability of the wastewater treatment to reach the standard stably, and the water quality of the reinjection water fluctuates greatly, which affects the reinjection process and oil displacement efficiency, greatly increases the cost of wastewater treatment and reduces the oil recovery efficiency

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