A method for quickly starting the denitrification desulfurization process

A denitrification desulfurization and quick start-up technology, applied in chemical instruments and methods, anaerobic digestion treatment, biological water/sewage treatment, etc., can solve the problem of difficult formation of granular sludge, difficulty in maintaining treatment effect, low biological holding capacity, etc. problems, to achieve the effect of easy control, stable and efficient processing performance, and high processing efficiency
CN105060477BInactive Publication Date: 2017-04-26HARBIN INST OF TECH
1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2017-04-26
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

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

Abstract

The invention discloses a method for quickly starting a denitrifying desulfurization process, relates to the method for starting the denitrifying desulfurization process, and aims to solve the technical problems that in the conventional denitrifying desulfurization process, the starting period is long, granule sludge is hard to form, the biological holding amount is low, and a long-term, stable and efficient treatment effect is hard to keep. The method comprises the following steps: I, forming stable and mature granule sludge; II, carrying out denitrifying desulfurization. The method has the following advantages: (1) the method is stable and efficient in treatment efficiency, and the removing rate of sulfide, nitrate and acetate is 95% or above; (2) the granule sludge formed by sulfate and sodium lactate as the main components of the substrate is adopted as inoculated sludge, and the denitrifying desulfurization process is started and operated, so that the biological holding amount of autotrophic denitrifying bacteria in the granule sludge is improved, the risk of autotrophic denitrifying bacterium loss is reduced, the efficiency of sulfide oxidization is guaranteed, and the endurance capacity of the system for toxicity of sulfide can be effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for starting a denitrification desulfurization process. Background technique

[0002] With the continuous and rapid development of my country's economy and the acceleration of urbanization, pharmaceutical and chemical industries discharge a large amount of high-concentration organic wastewater every year, among which organic wastewater containing sulfur and nitrogen is a type of heavy polluting industry that has a bad impact on biology and the environment. A typical representative of wastewater. This type of wastewater contains high concentrations of sulfur- and nitrogen-containing compounds, high toxicity, heavy pollution, and threats to biological health, especially the huge economic losses caused by sulfur-containing compounds. How to degrade and remove sulfur in organic wastewater stably and efficiently Nitrogen and carbon pollutants have become an urgent problem in the field of industrial wastewater treatment. [0...

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