Unlock instant, AI-driven research and patent intelligence for your innovation.

Sewage treatment agent, autotrophic denitrification microbial carrier and preparation method of autotrophic denitrification microbial carrier

A microbial carrier and autotrophic denitrification technology, which is applied in the field of sewage treatment, can solve the problems such as the living environment of refractory autotrophic denitrification bacteria, and achieve the effect of improving the efficiency and effect of denitrification

Active Publication Date: 2021-06-18
臻和慧联(浙江)环境科技有限公司
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of this application is to provide an autotrophic denitrification microbial carrier, a sewage treatment agent and its preparation method, in order to solve the technical problem that the denitrification carrier existing in the prior art is difficult to provide a suitable living environment for the autotrophic denitrification bacteria

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0052] The embodiment of the present application provides a method for preparing an autotrophic denitrifying microbial carrier, comprising:

[0053] S100, using raw materials including calcium salt and phosphate to prepare a calcium phosphate mixture;

[0054] S200, preparing an inorganic sol by using raw materials including inorganic substances;

[0055] S300, using raw materials including the calcium phosphate mixture obtained in S100 and the inorganic sol obtained in S200, and preparing an autotrophic denitrifying microbial carrier through heat treatment.

[0056] In the above embodiments, the calcium salt is a soluble calcium salt. The calcium salt in S100 may specifically include calcium chloride or calcium nitrate.

[0057] In the above examples, the phosphate is a soluble phosphate. The phosphate in S100 may specifically include diammonium hydrogen phosphate.

[0058] In the above embodiments, liquid such as water, ethanol, acetone, etc. may be used as a solvent to ...

Embodiment 1

[0090] This embodiment provides a method for preparing an autotrophic denitrifying microbial carrier, comprising:

[0091] S401. According to the mass ratio of cetyltrimethylammonium bromide: diammonium hydrogen phosphate: calcium nitrate: water = 3:5:15: 100, cetyltrimethylammonium bromide, diammonium hydrogen phosphate ammonium and calcium nitrate are mixed in water to obtain a first mixture;

[0092] S402. Add trace element additives to the first mixture obtained through S401 to obtain a second mixture, wherein the amount of trace element additives added is 2% of the amount of calcium nitrate added in S401; the trace element additives include: 20%wt Potassium element additive, 20%wt sodium element additive, 10%wt manganese element additive, 10%wt zinc element additive, 5%wt copper element additive, 5%wt cobalt element additive, 10%wt molybdenum element Additives, 10%wt selenium element additives, 10%wt boron element additives;

[0093] S403. Add sodium hydroxide solution ...

Embodiment 2

[0102] This embodiment provides a method for preparing an autotrophic denitrifying microbial carrier, comprising:

[0103] S501. According to the mass ratio of cetyltrimethylammonium bromide: diammonium hydrogen phosphate: calcium nitrate: water = 3:5:12: 100, cetyltrimethylammonium bromide, diammonium hydrogen phosphate ammonium and calcium nitrate are mixed in water to obtain a first mixture;

[0104] S502. Adding trace element additives to the first mixture obtained through S501 to obtain a second mixture, wherein the amount of the trace element additives added is 4% of the amount of calcium nitrate added in S501; the trace element additives include: 25%wt Potassium element additive, 25%wt sodium element additive, 10%wt manganese element additive, 10%wt zinc element additive, 5%wt copper element additive, 5%wt cobalt element additive, 5%wt molybdenum element Additives, 5%wt selenium element additives, 10%wt boron element additives;

[0105] S503. Add sodium hydroxide solu...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
porosityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a sewage treatment agent, an autotrophic denitrification microbial carrier and a preparation method of the autotrophic denitrification microbial carrier. The preparation method of the autotrophic denitrification microbial carrier comprises the following steps: S100, preparing a calcium phosphate mixture from raw materials including calcium salt and phosphate; S200, preparing inorganic substance sol by adopting raw materials containing inorganic substances; S300, preparing the autotrophic denitrification microbial carrier by adopting raw materials comprising the calcium phosphate mixture obtained in the step S100 and the inorganic sol obtained in the step S200. The autotrophic denitrifying microbial carrier provided by the invention can provide a suitable living environment for autotrophic denitrifying bacteria so as to improve the denitrification efficiency and effect of the autotrophic denitrifying bacteria on sewage.

Description

technical field [0001] The application belongs to the technical field of sewage treatment, and in particular relates to a sewage treatment agent, an autotrophic denitrification microbial carrier and a preparation method thereof. Background technique [0002] In recent years, with the increase of domestic sewage discharge, the improvement of industrialization level, and the extensive use of pesticides and fertilizers in agricultural production, the nitrate content in domestic sewage and industrial and agricultural wastewater has increased significantly. [0003] In order to control and suppress nitrate pollution and reduce the nitrogen content in water resources, microorganisms such as bacteria are usually used in the prior art to denitrify (ie, denitrify) sewage. [0004] At present, the more commonly used denitrification methods include heterotrophic denitrification and autotrophic denitrification. Among them, when microorganisms realize denitrification treatment through h...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F3/34C02F101/16
CPCC02F3/2806C02F3/34C02F2101/163
Inventor 韩彦涛陈力辉
Owner 臻和慧联(浙江)环境科技有限公司