Filler for sewage treatment and preparation method thereof

A technology for sewage treatment and preparation, which is applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., and can solve the problems of low biomass and poor activity.

Inactive Publication Date: 2010-07-07
HARBIN INST OF TECH
View PDF4 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low biomass and poor activ...

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
  • Filler for sewage treatment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0011] Specific Embodiment 1: The filler for sewage treatment in this embodiment consists of 77 to 90 parts by weight of polyurethane foam, 0.1 to 0.5 parts of microbial growth promoter, 0.1 to 0.3 parts of microbial activity activator, 2 to 7 parts It is made of active biological enzyme preparation and 8-15 parts of activated sludge.

[0012] The biomass attached to the filler for sewage treatment in this embodiment has reached 30kg / m 3 above.

[0013] The prepolymer of diphenylmethane diisocyanate and polyether polyol in the polyurethane foam material in this embodiment are under the condition that foaming agent, catalyst, foam stabilizer and diffusion agent exist when necessary, adopt commonly used Process preparation; wherein the density of polyurethane foam is 30kg / m 3 , the porosity is 25 mesh, the tensile is 250, the hardness is 2.7, and the rebound is 40%.

[0014] The activated sludge in this embodiment is taken from the activated sludge used to treat domestic sewa...

specific Embodiment approach 2

[0017] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the filler for sewage treatment consists of 80 to 85 parts of polyurethane foam, 0.2 to 0.4 parts of microbial growth promoter, and 0.15 to 0.25 parts of microorganisms in parts by weight. It is prepared by active activator, 4-6 parts of active biological enzyme preparation and 10-12 parts of activated sludge. Others are the same as the first embodiment.

specific Embodiment approach 3

[0018] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the filler for sewage treatment consists of 83 parts by weight of polyurethane foam, 0.3 part of microbial growth promoter, 0.2 part of microbial activity activator, 5 parts The active biological enzyme preparation and 11 parts of activated sludge are made. Others are the same as the first embodiment.

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
Densityaaaaaaaaaa
Porosityaaaaaaaaaa
Login to view more

Abstract

The invention relates to a filler for sewage treatment and a preparation method thereof and provides a filler and a preparation method thereof; the invention solves the problems that the existing biological carrier has low loaded biomass liveweight and poor activity; the filler is composed of polyurethane foam material, microorganism growth accelerator, active biological enzyme preparation and active sludge; the method comprises the following steps: 1. the raw material is weighted; 2. aeration and acclimatization cultivation are carried out to obtain the filler. The loaded biomass liveweight on the filler for sewage treatment reaches more than 30kg/m3, the filler has good activity, strong stability and strong shock resistance, the average removal rate of COD in sewage is 70-90 percent, the ammonia nitrogen removal rate is 20-40 percent, and the treatment effect is good.

Description

technical field [0001] The invention relates to a filler and a preparation method thereof. Background technique [0002] In recent years, with the accelerated development of the national economy, the traditional removal of COD and ammonia nitrogen and the in-depth research on the treatment of refractory organic wastewater have put forward higher requirements for the treatment capacity of the traditional activated sludge method. By increasing microbial activity and biological Diversity has been paid more and more attention to the technology of improving the effect of biochemical treatment. This carrier-based biofilm method can form carrier sludge with large biomass and rich biological phases, but the performance of carrier sludge depends on the performance of the carrier. Since the mid-1990s, the suspended carrier biofilm method has absorbed the advantages of both the traditional fluidized bed and the biological contact oxidation method, and has become a new and efficient sew...

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): C02F3/10
CPCY02W10/10
Inventor 邱珊马放徐善文魏利蔡笠冯丽丽周璐杨基先
Owner HARBIN INST OF 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