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Hunan Yongqing Environmental Protection Co., Ltd
Farmland management
NegotiableUpdate on 05/03
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Overview
Farmland Remediation Yongqing Environmental Protection is a provider of full industry chain services for the remediation of heavy metal pollution in farmland. It is a company that voluntarily promotes and creates a new third-party governance model for farmland remediation
Product Details
Farmlａnd Remediation
Farmland management
core technology
Croe Technology
At present, Yongqing Environmental Protection Farmland Restoration has established two core restoration technology systems, covering mainstream technologies for farmland restoration in China, with equal emphasis on economic applicability and ecological sustainability. Compared with domestic and foreign treatment technologies and methods such as soil removal, chemical leaching, and microbial remediation, Yongqing's treatment technologies and methods have the characteristics of short cycle, low cost, good effect, and easy promotion, and have been applied in engineering.
Classic Case
Classic Case
Contract service project for remediation of heavy metal contaminated farmland in a district of Changsha City
Project scale:200 acres
A method to reduce cadmium content in rice
A heavy metal passivator for farmland soil and its application
Preparation method and application of modified sepiolite powder
A solidification stabilizer for arsenic contaminated soil and its application
An artificial wetland sewage treatment system for farmland irrigation
Technological achievements:
The "Rice Cadmium Reduction and Selenium Enrichment Integrated Technology" independently developed in 2014 passed the achievement evaluation of Hunan Province
The 2016 farmland restoration and overall governance technology plan passed the evaluation of the Hunan Agricultural Society
In 2018, the independently developed "soil conditioner" was registered
In 2019, as one of the main completion units, "Key Technologies and Applications for Preventing and Controlling Cadmium Pollution in Rice Fields" won the second prize of National Science and Technology Progress Award.
Farmland management
Yongqing Environmental Protection is a provider of full industry chain services for the remediation of heavy metal pollution in farmland, and is a company that has spontaneously promoted and created a new third-party governance model for farmland remediation.
There are scientific research platforms such as the National Engineering Laboratory for Soil Pollution Prevention and Control and Remediation Technology in Farmland and the Hunan Provincial Engineering Technology Research Center for Heavy Metal Pollution Remediation in Farmland Soil; Undertake research projects such as the National Key R&D Program and the Provincial Key R&D Program; It is the vice chairman unit of the "National Collaborative Innovation Alliance for Comprehensive Prevention and Control of Heavy Metal Pollution in Agricultural Product Production Areas" and the vice chairman unit of the "China Agricultural Ecological Environment Protection Association". Yongqing Environmental Protection also participates in standard setting, assisting in the treatment and restoration of polluted farmland.
In recent years, Yongqing has invested tens of millions of yuan in independent research and development, gradually establishing a complete set of technologies and models for soil passivation, plant extraction, foliar resistance control, etc. that can achieve safe production of rice, wheat, and other crops on farmland soil contaminated with acidic and alkaline heavy metals in the north and south, and have been widely applied. In 2016, a third-party remediation project for heavy metal pollution in 236000 acres of farmland was successfully implemented, providing a model experience for third-party remediation of farmland.
In recent years, Yongqing Environmental Protection has implemented more than 10 heavy metal polluted farmland treatment projects totaling over 300000 acres in Hunan, Sichuan, Jiangsu, Zhejiang, Hebei and other places. The total amount of farmland treated has remained stable, accumulating rich treatment experience for farmland with different pollution areas, types and degrees.
There are scientific research platforms such as the National Engineering Laboratory for Soil Pollution Prevention and Control and Remediation Technology in Farmland and the Hunan Provincial Engineering Technology Research Center for Heavy Metal Pollution Remediation in Farmland Soil; Undertake research projects such as the National Key R&D Program and the Provincial Key R&D Program; It is the vice chairman unit of the "National Collaborative Innovation Alliance for Comprehensive Prevention and Control of Heavy Metal Pollution in Agricultural Product Production Areas" and the vice chairman unit of the "China Agricultural Ecological Environment Protection Association". Yongqing Environmental Protection also participates in standard setting, assisting in the treatment and restoration of polluted farmland.
In recent years, Yongqing has invested tens of millions of yuan in independent research and development, gradually establishing a complete set of technologies and models for soil passivation, plant extraction, foliar resistance control, etc. that can achieve safe production of rice, wheat, and other crops on farmland soil contaminated with acidic and alkaline heavy metals in the north and south, and have been widely applied. In 2016, a third-party remediation project for heavy metal pollution in 236000 acres of farmland was successfully implemented, providing a model experience for third-party remediation of farmland.
In recent years, Yongqing Environmental Protection has implemented more than 10 heavy metal polluted farmland treatment projects totaling over 300000 acres in Hunan, Sichuan, Jiangsu, Zhejiang, Hebei and other places. The total amount of farmland treated has remained stable, accumulating rich treatment experience for farmland with different pollution areas, types and degrees.
core technology
Croe Technology
At present, Yongqing Environmental Protection Farmland Restoration has established two core restoration technology systems, covering mainstream technologies for farmland restoration in China, with equal emphasis on economic applicability and ecological sustainability. Compared with domestic and foreign treatment technologies and methods such as soil removal, chemical leaching, and microbial remediation, Yongqing's treatment technologies and methods have the characteristics of short cycle, low cost, good effect, and easy promotion, and have been applied in engineering.
Soil conditioning - Leaf resistance control - Water management
The main approach is to reduce soil heavy metal activity, decrease crop absorption, and control the transport of heavy metals to grains, in order to achieve the goal of safe production of agricultural products. This technology is not only suitable for cultivation, but also economically applicable and easy to promote, making it suitable for the restoration of large areas of polluted farmland.
Technical advantages:
·The reduction rate of available cadmium in soil with mild cadmium pollution reaches 20-30%, and the reduction rate of cadmium in rice reaches 30-50%; The reduction rate of available cadmium in moderately cadmium polluted soil reaches 30-40%, and the reduction rate of cadmium in rice reaches 50-70%.
·11 sets of remediation technology models to meet the remediation needs of different polluted farmland.
·There are two soil conditioner production lines, with an annual production capacity of 600000 acres of arable land for remediation.
Application fields:
·Light to moderate cadmium, arsenic, lead and other single or compound pollution on cultivated land.
·Mild to moderate cadmium pollution in rice fields, tobacco, vegetables, and other crops.
Heavy metal activation plant extraction agronomic regulation
The goal of gradually reducing the total amount of heavy metals in soil is achieved by planting remediation plants that are highly enriched in heavy metals or have a large total extraction capacity, and then harvesting, removing, and safely disposing of them. This technology has good ecological and environmental effects and is a green and efficient restoration technique.
Technical advantages:
·The annual reduction rate of total cadmium in moderately cadmium contaminated soil is 10-20%.
·Develop different crop and hyperaccumulation plant intercropping and intercropping restoration technology models.
Application fields:
·Light, moderate, and severe cadmium, arsenic, lead, and other single or compound pollution on cultivated land.
·Moderate to severe cadmium, arsenic, lead and other pollutants contaminate crops such as rice, wheat, corn, potatoes, tobacco, vegetables, etc.
Security disposal technology
By blending and incinerating with household waste in appropriate proportions, it is possible to efficiently and safely dispose of excessive crop straw and repair plants with different humidity levels.
The fly ash and slag generated during the incineration process can be safely buried after stabilization, which can achieve maximum reduction, harmlessness, and resource utilization.
Technical advantages:
·It can adjust the appropriate blending ratio and other parameters based on the calorific value and moisture content of straw, and has a wide range of applications.
·The heavy metal treatment system is mature, achieving "reduction, harmlessness, and resource utilization".
·Yongqing operates multiple self operated waste incineration power plants, providing strong end-to-end safety disposal support capabilities.
Application fields:
·Safe incineration treatment of various types of agricultural solid waste such as enriched plants and excessive crops.
Classic Case
Contract service project for remediation of heavy metal contaminated farmland in a district of Changsha City
Project scale:236000 acres (including 10000 acres of effect contracting area)
Pollution level:Remediation technology for moderate to mild cadmium pollution: "soil passivation+foliar resistance control+water management+deep tillage" technology system
Repair effect:Among them, after one year of treatment, the average cadmium reduction rate of early rice exceeded 40%, and the average cadmium reduction rate of late rice was close to 60%; The contracted area of 226000 mu measures adopts the "VIP+n" technology system of the Provincial Agricultural Commission, which meets the project assessment and acceptance standards.
Acceptance status:Successfully passed the acceptance inspection in March 2017
Passivation and Restoration Project for Soil Pollution Control and Restoration of Cultivated Land in a Certain Area of Sichuan Province
Project scale:1940 acres
Pollution level:Affected by local chemical enterprises, there is a coexistence of new and old pollutants, as well as composite pollutionThe situation is mainly characterized by moderate to severe cadmium pollution
Repair techniques:Soil passivation+foliar resistance control+water management "+" low cadmium varieties "
Repair effect:Reduce available cadmium in cultivated soil by more than 30% and achieve a compliance rate of over 90% for agricultural products
Management mode:Yongqing Heavy Metal Pollution Control Mobile APP Platform System Management
Soil pollution control and restoration project for cultivated land in a certain area of Jiangsu Province
Project scale:600 acres
Pollution level:Alkaline soil with a total cadmium concentration of 1.2mg/kg
Repair techniques:Soil passivation remediation technology, plant remediation technology
Governance time:May 2017 December 2018
Soil pollution control and restoration project for farmland in a certain area of Hebei Province
Project scale:1000 acres
Pollution level:Alkaline soil with a total cadmium concentration of 1.5mg/kg
Repair techniques:Soil passivation and remediation technology
Governance time:October 2018 to December 2019
In 2017, a Cd enrichment and removal demonstration project covering 100 acres was carried out in Hunan Province
Project scale:200 acres
Pollution level:Soil acidity, total cadmium concentration 0.8mg/kg
Repair techniques:Plant restoration of Sedum sarmentosum
Governance time:July 2017 to December 2018
intellectual property right
Intellectual Property
Standard:
Participated in the compilation of the Guidelines for the Control and Restoration of Polluted Farmland (NY/T 3499-2019)
Books——
Editor in Chief, "Remediation and Application of Heavy Metal Pollution in Farmland"
：intellectual property right
Intellectual Property
Standard:
Participated in the compilation of the Guidelines for the Control and Restoration of Polluted Farmland (NY/T 3499-2019)
Books——
Editor in Chief, "Remediation and Application of Heavy Metal Pollution in Farmland"
A method to reduce cadmium content in rice
A heavy metal passivator for farmland soil and its application
Preparation method and application of modified sepiolite powder
A solidification stabilizer for arsenic contaminated soil and its application
An artificial wetland sewage treatment system for farmland irrigation
Technological achievements:
The "Rice Cadmium Reduction and Selenium Enrichment Integrated Technology" independently developed in 2014 passed the achievement evaluation of Hunan Province
The 2016 farmland restoration and overall governance technology plan passed the evaluation of the Hunan Agricultural Society
In 2018, the independently developed "soil conditioner" was registered
In 2019, as one of the main completion units, "Key Technologies and Applications for Preventing and Controlling Cadmium Pollution in Rice Fields" won the second prize of National Science and Technology Progress Award.