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A kind of curing agent for bisphenol A polluted soil and its preparation method and application

A curing agent and soil technology, applied in the restoration of polluted soil, chemical instruments and methods, applications, etc., can solve problems such as affecting the living environment of farmers, polluting soil and water sources, and easily producing bacteria, achieving high practicability and application. value, soil improvement, effects of reducing bioavailability

Inactive Publication Date: 2020-11-17
SOUTH CHINA NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the acceleration of rural urbanization, traditional fuel methods will gradually disappear, and the consumption and use of residual branches will gradually decrease, resulting in a large number of residual branches piled up, bringing serious adverse consequences
At the same time, because the residual branches themselves carry many pathogenic bacteria, and stacking in the open air is easy to produce bacteria, which in turn pollutes the soil and water sources and affects the living environment of farmers.

Method used

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  • A kind of curing agent for bisphenol A polluted soil and its preparation method and application
  • A kind of curing agent for bisphenol A polluted soil and its preparation method and application
  • A kind of curing agent for bisphenol A polluted soil and its preparation method and application

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preparation example Construction

[0030] A preparation method for a curing agent for bisphenol A polluted soil, comprising the following steps:

[0031] 1) Washing, drying and cutting the discarded lychee branches to obtain biomass raw materials;

[0032] 2) Pyrolyzing the biomass raw material in an anaerobic atmosphere, grinding the obtained solid product, and sieving to obtain a curing agent.

[0033] Preferably, in the step 1) of the preparation method of the curing agent, the drying is specifically air-dried for 5-10 days, and then dried at 75°C-85°C for 60h-80h.

[0034] Preferably, in the step 1) of the preparation method of the curing agent, the cutting is specifically cutting the discarded lychee branches into branches with a length of 1 cm to 2 cm.

[0035] Preferably, in the step 2) of the preparation method of the curing agent, the anaerobic atmosphere is one of nitrogen, helium, neon, argon, krypton, and xenon; further preferably, step 2 of the preparation method of the curing agent ), the anaero...

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Abstract

The invention discloses a curing agent for bisphenol A polluted soil, a preparation method and application thereof. This curing agent is lychee biochar. At the same time, the preparation method of the lychee biochar curing agent is also disclosed. Also disclosed is a method for fixing bisphenol A in soil, which is to mix bisphenol A polluted soil with lychee biochar curing agent to fix bisphenol A. The application of the present invention to immobilize bisphenol A in biochar soil doped with lychees can effectively utilize waste resources, turn waste into treasure, simple operation, significant effect, relatively low cost compared with other fixatives, and improve soil at the same time. Therefore, it has high practicality and application value.

Description

technical field [0001] The invention relates to a curing agent for bisphenol A polluted soil, a preparation method and application thereof. Background technique [0002] Endocrine disruptors have become a new class of organic pollutants in recent years. As a typical pollutant of endocrine disruptors, bisphenol A has the same effect as other environmental hormones because of its chemical structure similar to estradiol and diethylstilbestrol, which can imitate or infect endogenous estrogen and play a role in imitating endogenous estrogen. The effect of estrogen, even when the concentration is ng / L, will have adverse effects on the reproduction, growth and development, nervous system, immune system and other aspects of organisms. Because bisphenol A is easily degraded under aerobic conditions, people seldom pay attention to its hazards and lack of awareness, but bisphenol A can remain for a long time and cause harm under anoxic or anaerobic conditions, such as deep soil and gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/30C09K17/02B09C1/00
CPCB01J20/20B01J20/3078B01J2220/4825B09C1/00C09K17/02
Inventor 舒月红刘峻光蒋少军刘玲玲贾珍珍
Owner SOUTH CHINA NORMAL UNIVERSITY
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