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Method for repairing copper-polluted soil through apatite, rye and bermuda grass

A combined restoration and apatite technology, applied in the restoration of polluted soil, etc., to achieve the effect of easy operation and use, improvement of pH value, and huge economic and social benefits

Active Publication Date: 2018-06-12
HENAN ACAD OF SCI INST OF BIOLOGY LIABILITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a method for jointly repairing copper-contaminated soil with apatite, rye and bermudagrass, which can effectively solve the problem of repairing copper-contaminated soil

Method used

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  • Method for repairing copper-polluted soil through apatite, rye and bermuda grass

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Embodiment 1

[0019] The technical scheme solved by the present invention is a method for jointly repairing copper-contaminated soil with apatite, rye, and bermudagrass, comprising the following steps:

[0020] (1) First, apply 3.5% apatite of soil quality to the 5-15cm plow layer of Cu-contaminated soil, plow the soil, fully mix the apatite and soil and level the land, and balance for 1 week after watering;

[0021] (2) Apply compound fertilizer 40kg / mu to the soil after watering balance for 1 week, sow the rye seeds after germination and cover with thin soil, the seeding rate is 10kg / mu, water according to the dryness and wetness of the soil, so that Soil humidity is kept at 60%-80%;

[0022] (3) When the rye grows to the beginning of earing, the aerial part and root system samples of the rye are collected, dried to measure the dry weight, and the Cu content is determined by Beifen Rayleigh Atomic Absorption Spectrophotometer (WFX110A);

[0023] (4) After the rye is harvested, re-level t...

Embodiment 2

[0026] In the specific implementation of the present invention, a method for jointly repairing copper-contaminated soil with apatite, rye, and bermudagrass, the amount of apatite applied is 3.2% or 3.8% of the mass of Cu-polluted 1-20cm soil .

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Abstract

The invention relates to a method for repairing copper-polluted soil through apatite, rye and bermuda grass. The method can effectively solve the repairing problem of copper-polluted soil. The methodcomprises the steps of firstly, applying apatite to Cu-polluted soil, ploughing soil, and balancing soil for 1 week after watering; applying a compound fertilizer, and seeding rye seeds subjected to accelerating germination; when rye ears, collecting ground parts and root samples of rye, drying the ground parts and the root samples, measuring the dry weight, and measuring the Cu content; flattening soil again, and seeding bermuda grass seeds subjected to accelerating germination; when bermuda grass ears, collecting ground parts and root samples of bermuda grass, drying the ground parts and theroot samples, measuring the dry weight, measuring the Cu content, collecting root soil samples, measuring the pH value, and measuring Cu contents of soil exchangeable state, soil carbonate combined state and soil iron and manganese oxidation combined state. The method is simple in use, easy to operate and utilize, and good in effect, and has strong practical value and great economic and social benefits.

Description

technical field [0001] The invention relates to environmental protection, in particular to a method for jointly repairing copper-polluted soil with apatite, rye and bermudagrass. Background technique [0002] With the acceleration of urbanization and industrialization, and the development of agricultural intensification, soil heavy metal pollution is becoming more and more serious, which has become an important environmental problem affecting the social and economic development of our country. Heavy metal pollutants in soil have the characteristics of long-term, concealment, superficial aggregation and irreversibility, so it is very difficult to control and restore them. Heavy metal elements can also enter the human body through drinking water and the food chain, seriously endangering human health. Cu is one of the micronutrient elements necessary for the growth and development of organisms, but when it is excessive, it can cause soil environmental pollution and produce tox...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00
CPCB09C1/105B09C2101/00
Inventor 杜志敏甄静郭雪白王继雯岳丹丹杨文玲巩涛李冠杰赵俊杰陈国参
Owner HENAN ACAD OF SCI INST OF BIOLOGY LIABILITY