Device and method for inducing generation of struvite by virtue of microorganisms

A struvite and microbial technology, applied in the field of facultative anaerobic microorganism-induced mineralization, can solve the problems of complex operation, high cost, secondary pollution, etc., and achieve simple renewal operation, strong adsorption, and strong resistance to impact loads effect of ability

Active Publication Date: 2017-03-22
SHANDONG UNIV OF SCI & TECH
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the technical problems to be solved by the present invention is to provide a device that utilizes microorganisms to induce struvite production. The device is used in conjunction with a reaction unit, a precipitation unit and a water circulation unit to

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for inducing generation of struvite by virtue of microorganisms
  • Device and method for inducing generation of struvite by virtue of microorganisms

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with specific embodiments.

[0034] The microorganisms referred to in the present invention are such as non-decarboxylated Luck bacteria (leclercia adecarboxylata) JLS2, and its preservation number in the General Biology Center of China Microorganism Culture Collection Management Committee is CGMCC No.11782, and this bacteria can be used to settle Mg 2+ and / or PO 4 3- and / or NH 4 + Generate struvite.

[0035] like figure 1 Shown, a kind of device of the present invention utilizes microorganism to induce struvite generation, comprises reaction unit, sedimentation unit, water circulation unit and N 2 Gas tank 30, wherein the reaction unit includes a fluidized bed reactor 9, and the top of the fluidized bed reactor 9 is sealed by a cover head 1, and a conventional structure such as a flange can be used between the fluidized bed reactor and the cover head 1 8 coordination, when filler 12 needs to b...

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

PUM

No PUM Login to view more

Abstract

The invention discloses a device and a method for inducing generation of struvite by virtue of microorganisms. The device comprises a reaction unit, a precipitation unit and a water circulating unit, wherein the reaction unit comprises a fluidized bed reactor, packing in the fluidized bed reactor, a pH meter and a temperature regulator; a precipitator in the precipitation unit communicates with the fluidized bed reactor by virtue of a conduit; three outlets are formed in the precipitator; and the water circulating unit and the fluidized bed reactor can achieve reflux with the precipitation unit. According to the device provided by the invention, the packing in the fluidized bed reactor can serve as an attachment carrier of the microorganisms; and by virtue of the water circulating unit, a water flow can rise more uniformly, which is conducive to the fluidized growth of struvite crystals, and generated struvite particles are uniform and dense. The size of the device provided by the invention is greatly diminished, so that engineering investment and occupied land area are significantly reduced; and the device is low in energy consumption, high in efficiency and strong in operating flexibility, and the device has an important application value.

Description

technical field [0001] The invention relates to the field of mineralization induced by facultative anaerobic microorganisms, in particular to a 2+ , NH 4 + and PO 4 3- Device and method for inducing struvite formation in wastewater. Background technique [0002] Mg in industrial wastewater 2+ , NH 4 + and PO 4 3- Most of the removal methods are chemical methods, such as struvite crystal precipitation method, the basic principle is to make Mg 2+ , NH 4 + and PO 4 3- A chemical reaction occurs to form double salt struvite (MgNH 4 PO 4 ·6H 2 O). Struvite is a kind of ore, also known as bird and animal feces, and its composition is MgNH 4 PO 4 ·6H 2 O, because it is rich in elements such as nitrogen and phosphorus, and is not easy to be washed away by water, it can be used in floodplains, saline-alkali land and other environments. These characteristics make it a high-quality slow-release fertilizer that can achieve good economic and environmental benefits and...

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

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C12M1/04C12M1/34C12M1/36C12M1/38C12M1/42C12M1/12
CPCC12M25/20C12M29/00C12M33/14C12M35/04C12M41/00C12M41/12C12M41/26
Inventor 韩作振朱永茂闫华晓赵辉赵延洋孙斌孟瑞瑞庄定祥李丹刘斌为
Owner SHANDONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap