Method of treating coal mine wastewater by synergy of sulfate-reducing bacteria and spontaneous combustion gangue
A technology for coal mine wastewater and sulfate, applied in mining wastewater treatment, chemical instruments and methods, biological water/sewage treatment, etc., to achieve obvious adsorption effect, strong applicability, and the effect of reducing harmful ion content
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0037] A method for treating coal mine wastewater by sulfate-reducing bacteria in cooperation with spontaneous combustion coal gangue, comprising the following steps:
[0038] Step 1: Preparation of spontaneous combustion gangue powder
[0039] Sieve the spontaneous combustion coal gangue samples taken from Gaode Mine in Fuxin, Liaoning, to obtain spontaneous combustion coal gangue powder with a particle size of 0.074-0.600mm, dip in distilled water for 3 times, and dry at 60°C to obtain dry spontaneous combustion coal Gangue powder, spare;
[0040] Step 2: Preparation of sulfate-reducing bacteria
[0041] Using the bottom mud of Xihe River in Fuxin City as activated sludge, under anaerobic environment, using Postgate medium, using liquid paraffin liquid seal, rubber stopper to stopper bottle mouth and Vaseline seal, after enrichment culture, the medium turns black, Open the cork to smell the hydrogen sulfide gas, and get the SRB strains in the logarithmic growth phase;
[00...
Embodiment 2
[0058] A method for treating coal mine wastewater with sulfate-reducing bacteria in cooperation with spontaneously combusted coal gangue, the same as in Example 1.
[0059] The difference is that
[0060] 1) In step 1, the spontaneous combustion coal gangue powder with a particle size of 0.600 to 0.450 mm is obtained;
[0061] 2) In step 3, dry spontaneous combustion coal gangue powder: SRB bacteria suspension after centrifugation: Fe-free 2+ Postgate Medium = 30g: 5mL: 100mL;
[0062] Others are the same.
[0063] The method for treating coal mine wastewater by using the sulfate-reducing bacteria of this embodiment in cooperation with spontaneously combusted coal gangue can remove Fe 2+ , Mn 2+ and SO 4 2- , where Fe 2+ The removal rate was 70.94%, Mn 2+ The removal rate was 83.33%, SO 4 2- The removal rate is 65.40%, and after treatment, the pH value of coal mine wastewater is 6.91.
Embodiment 3
[0065] A method for treating coal mine wastewater with sulfate-reducing bacteria in cooperation with spontaneously combusted coal gangue, the same as in Example 1.
[0066] The difference is that
[0067] 1) In step 1, the spontaneous combustion coal gangue powder with a particle size of 0.450 to 0.300 mm is obtained;
[0068] 2) In step 3, dry spontaneous combustion coal gangue powder: SRB bacteria suspension after centrifugation: Fe-free 2+ Postgate medium = 30g: 10mL: 100mL;
[0069] Others are the same.
[0070] The method for treating coal mine wastewater by using the sulfate-reducing bacteria of this embodiment in cooperation with spontaneously combusted coal gangue can remove Fe 2+ , Mn 2+ and SO 4 2- , where Fe 2+ The removal rate was 84.38%, Mn 2+ The removal rate was 65.48%, SO 4 2- The removal rate is 77.58%. At the same time, the pH value of coal mine wastewater is 7.51 after treatment.
PUM
Property | Measurement | Unit |
---|---|---|
Particle size | aaaaa | aaaaa |
Particle size | aaaaa | aaaaa |
Particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com