Temperature-based heavy metal soil pollution remediation device
A soil pollution and heavy metal technology, applied in the field of soil remediation, can solve the problems of secondary soil damage, speed up legislation, reduce soil viscosity and nutrients, etc., and achieve the effect of prolonging the heating time, increasing the service life and improving toughness
Inactive Publication Date: 2020-11-06
达小莉
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Problems solved by technology
[0004] According to the "National Soil Pollution Survey Bulletin" released in 2014, the overall situation of China's soil environment is not optimistic. Facing the serious situation of soil pollution, the speed of national legislation has been significantly accelerated. In addition to adding soil remediation to the new "Environmental Protection Law", the Ministry of Environmental Protection has recently announced the new "Soil Environmental Quality Standards (Draft for Comment)" , the formulation and implementation of the "Soil Pollution Prevention and Control Action Plan" (referred to as "Soil Ten Articles") has also been put on the agenda. The large-scale soil pollution exceeds the standard and the promotion of national legislation. The industry is expected to give birth to a trillion-level soil remediation market. However, many Experts said that although the cake is big, it cannot be blindly optimistic. Due to multiple barriers such as technology, capital, and business models, it is unrealistic for the soil remediation industry to grow bigger in a short period of time.
[0005] At present, in soil remediation, it is commonly used to continuously spray the soil with chemical reagents, which can easily cause secondary damage to the soil and reduce the viscosity and nutrients of the soil.
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Embodiment 1
[0042] see Figure 1-4 , a device for remediating heavy metal soil pollution based on temperature, comprising a fixed pipe 1, a water tank is dug inside the fixed pipe 1, a fixed ring 3 is threadedly connected to the outer end of the fixed pipe 1, and an annular groove 4 is dug at the upper end of the fixed ring 3, The bottom wall of the annular groove 4 is excavated with a plurality of main leakage holes 5 of even parts, the main leakage holes 5 run through the fixed ring 3 and communicate with the inner wall of the fixed ring 3, and the outer end of the fixed pipe 1 is dug with an auxiliary water hole, and the auxiliary water hole is connected to the inner wall of the fixed ring 3. The main leakage hole 5 communicates, the lower end of the fixed pipe 1 is provided with a connecting pipe 2, and a connecting ring 8 is fixedly connected between the inner walls of the connecting pipe 2, the connecting ring 8 is located at the upper end of the connecting pipe 2, and the outer end ...
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The invention discloses a temperature-based heavy metal soil pollution remediation device, and belongs to the field of soil remediation. According to the scheme, when heavy metal soil is repaired, a connecting pipe and a fixing ring are rotationally connected to the two ends of a fixing pipe correspondingly, a main water leakage hole coincides with an auxiliary through hole, dew is enable to enteranannular groove from the upper end of the main water leakage hole through a water flowing groove; calcium oxide powder and water are mixed for heating; a sulfide is diffused in the soil through through holes; calcium oxide powder reacts with water to generate heat in the annular groove; heat is transferred to the inner wall of the fixing pipe; a solid soil remediation agent volatilizes into thefixing pipe, the interior of the fixing pipe is subjected to heat preservation through a heat preservation layer, the length between the outer cylinder and the inner rod is fixed through the screw rod, the fixing rod is inserted into soil, and therefore the soil is fixed and is not prone to loss, and when the fixing rod is located in the soil, the acid-base degree of the soil is detected through the detection test paper.
Description
technical field [0001] The invention relates to the field of soil remediation, in particular to a temperature-based remediation device for heavy metal soil pollution. Background technique [0002] Soil remediation is a technical measure to restore contaminated soil to normal functions. In the soil remediation industry, there are more than one hundred existing soil remediation technologies, and there are more than ten commonly used technologies, which can be roughly divided into three types: physical, chemical and biological. Methods: Since the 1980s, many countries in the world, especially developed countries, have formulated and carried out contaminated soil treatment and remediation plans, thus forming a new soil remediation industry. [0003] "High pollution exceeding the standard rate", "trillion-level market", "complex system engineering", "emerging industries in the early stages of development", China's soil pollution prevention and control is affixing these labels and...
Claims
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Login to View More IPC IPC(8): B09C1/08B09C1/06G01N21/80
CPCB09C1/06B09C1/08B09C2101/00G01N21/80
Inventor达小莉
Owner达小莉