Preface:
In 2022, in order to implement the decision-making and deployment of the Party Central Committee and the State Council, the Ministry of Housing and Urban-Rural Development, the Ministry of Ecology and Environment, the National Development and Reform Commission, and the Ministry of Water Resources issued a series of documents such as the Implementation Plan for the In-depth Fight against the Governance of Urban Black and Odorous Water Bodies, which helped the treatment of black and odorous water bodies and the construction of urban drainage and flood prevention systems, and achieved good stability measures to ensure people's lives and property and health and the stable operation of social economy during heavy rains.
It is proposed that by the end of June 2022, the county-level city government will complete the investigation of black and odorous water bodies in the built-up area, and by 2025, the proportion of black and odorous water bodies in the built-up areas of county-level cities will reach 90%.
Overview of the 2022 Urban Water Environment Conference
On August 22-24, 2022, the "2022 Urban Water Environment Conference" was held in Guangzhou, with the theme of "low carbon, green, ecology - towards the "Qing" era" as the theme background, with the main task of publicizing the comprehensive model of water environment governance, relevant policies, excellent cases and technical exchanges, and invited well-known domestic scholars and experts and top R&D companies in the industry as participants, providing a communication platform for the general public to understand the new dynamics of urban water environment governance and new technology industries.
As one of the representatives of environmental protection enterprises, Dr. Song Yu, R&D Director of the Research Institute (Technology Center), delivered the technical sharing of "Introduction to The Treatment Technology of Black and Odorous Water Bodies - Environmental Protection Dredging, Silt Treatment and Sludge Resource Utilization" at the meeting. Among them, the "ecological dredging and curing technology" and "sludge resource utilization solution" gave the unique answer of tongchen. At the same time, at the conference, Dr. Song Yu also shared the classic case of Tongchen in the treatment of black and odorous water bodies.
Ecological dredging and curing technology
Mechanical integration and geomechanical pipe bag technology are used to quickly and effectively dehydrate and consolidate, and the endogenous pollution in black and odorous water bodies is quickly eliminated.
Hydrothermal curing technology + hydrothermal curing process
• Under hydrothermal conditions, the ion product of water is thousands of times that of normal temperature and pressure, so insoluble substances at room temperature will become easily soluble under hydrothermal conditions, so many substances that cannot react at room temperature and solid state will react under hydrothermal conditions.
• A method of separating pressurized molding from heat curing.
Principle of hydrothermal curing technology: Simulate the mechanism of groundwater thermal rock formation, according to the principle of dissolution/precipitation, the tens of millions of years of diagenesis period of naturally built rock can be shortened to tens of hours under laboratory conditions.
Hydrothermal curing process：
Case Study:
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