Method and system using micro-nanometer bubbles to repair underground water in in-situ mode
A micro-nano bubble, in-situ repair technology, applied in the adjustment method of biological treatment, contaminated groundwater/leachate treatment, chemical instruments and methods, etc. Limited and small scope of influence, etc., to achieve the effect of good oxygen supply effect, large scope of influence and low maintenance cost
Active Publication Date: 2013-06-12
TSINGHUA UNIV +1
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However, in the process of biological ventilation, the air generally moves in the form of microchannels or independent bubbles of millimeter-centimeter particle size in the groundwater. limited
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[0033] Utilize the method and system described in the present invention to carry out the on-the-spot implementation scheme of micro-nano aeration removal of organic pollutants in groundwater as follows:
[0034] (1) Determine the area of organic pollutants in groundwater, determine the flow direction of groundwater, and determine the number of water injection wells needed; for a single water injection well, the maximum range of the polluted area does not exceed 500m, and the concentration of organic pollutants When it is not more than 5000ppm, the method and system of the present invention can have a better repair effect;
[0035](2) According to the measurement in step (1), build one or more water injection wells upstream of the polluted area, or use existing well locations; install micro-nano aeration devices 1 below the groundwater level of the water injection wells, Solar power supply device 9 is installed, and micro-nano aeration device 1 is connected with solar power s...
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The invention belongs to the technical field of repairing polluted underground water and in particular relates to a method and a system using micro-nanometer bubbles to repair underground water in an in-situ mode. A water injection well is arranged at the upstream position of an area where water is polluted by organic pollutants, a micro-nanometer aeration device is positioned in the water injection well, a solar power supply device or a storage battery can supply power, and remote monitor and control can be achieved on the ground through a remote wireless communication device. Air and water can generate water containing micro-nanometer bubbles through the micro-nanometer aeration device to enter a groundwater system to directly resolve the organic pollutants or supplement electronic acceptors for microorganisms continuously to improve degradation and removal of organic pollutants. Simultaneously, a monitor well is arranged to monitor and analyze all parameters in real time in an organic pollutant removal process, and micro-nanometer bubble generation time, water inlet quantity and aeration quantity can be adjusted remotely according to analysis results. The method and the system are good in micro-nanometer bubble oxygen supply effects, long in duration time, large in affecting range and capable of overcoming defects of national degradation, biological ventilation and the like in the general in-situ repair technique.
Description
technical field [0001] The invention belongs to the technical field of restoration of polluted groundwater, and in particular relates to a method and system for in-situ restoration of groundwater with micro-nano bubbles. Background technique [0002] Environment and development are major issues of common concern to the international community today. In order to achieve sustainable development, environmental protection and governance should be an integral part of the development process. As an important part of global water resources, groundwater resources play an extremely important role in economic and social development under the condition of serious surface water pollution in our country. In recent years, due to the rapid development of social economy and the massive production of industrial waste, the problem of global environmental pollution has become increasingly serious, and the petrochemical industry is one of the important sources of pollution. At present, the q...
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Login to View More IPC IPC(8): C02F3/02
CPCC02F3/226C02F3/02C02F2103/06C02F2101/30C02F2209/008C02F2305/06C02F3/006B09C1/002C02F2303/26Y02W10/10
Inventor 胡黎明宋德君李恒震
Owner TSINGHUA UNIV