Black and odorous water bottom mud in-situ remediation material and preparation method thereof

A black and odorous water body, in-situ repair technology, applied in water treatment parameter control, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problem of biodiversity reduction, poor control of nitrate dosage, Negative ecological effects and other issues, to achieve the effect of increasing the redox potential, inhibiting the formation of sulfide, and reducing the COD value
CN109607993APending Publication Date: 2019-04-12TSINGHUA UNIV
8 Cites 15 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2019-04-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a black and odorous water bottom mud in-situ remediation material and a preparation method thereof. The material is prepared from an oxygen release agent, an ammonia-nitrogen oxidant, aggregates, a binder, a pH regulator and a solidification regulator. The black and odorous water bottom mud in-situ reduction and solidification function material is prepared from the following steps that all raw materials are mixed to be uniform, granulation is conducted, or a mold is filled with chemicals, maintenance is conducted, and after the maintenance period is finished, the material can be obtained. Accordingly, the applied materials are easy to obtain and friendly to environment, preparation is easy, and the cost is low; meanwhile, oxygen slowly released from the chemicals and hypochlorite ions can improve the redox potential of black and odorous water, ammonia and nitrogen can be oxidized, sulfur release is inhibited, and remediation can be provided for the black and odorous water efficiently and enduringly.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of water body treatment, and in particular relates to an in-situ restoration material for black and odorous water bottom mud and a preparation method thereof. Background technique

[0002] With the acceleration of urbanization and the improvement of industrialization, the excessive discharge of living and production wastewater has caused the eutrophication of the water body, and microorganisms consume oxygen in the water body and reproduce in large numbers, reducing the oxygen in the water body to the level of anoxic. In anoxic water, organic matter is anaerobically decomposed to form a large amount of sulfide, which makes the water black and smelly. The black and odorous water body not only leads to the destruction of the river ecosystem, but also seriously affects people's life.

[0003] At present, there are two types of black and odorous water restoration methods commonly used: ex-situ restoration and in-situ res...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More