Comprehensive processing process and system for cultivation wastewater

A technology for comprehensive treatment of aquaculture wastewater, which is applied in the field of comprehensive treatment methods and treatment systems for aquaculture wastewater in aquaculture areas, can solve problems such as inability to remove nitrogen and phosphorus, single reliance on treatment technology, and eutrophication of water bodies, and achieve improvement Effects of sanitation, improvement of process technology, and contradiction between supply and demand of water for delayed construction

Inactive Publication Date: 2009-07-29
AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
View PDF0 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country has carried out large-scale research and application of anaerobic fermentation technology for more than 20 years, and various anaerobic fermentation technologies have gradually matured. To consume carbon and nitrogen, after the aquaculture wastewater undergoes anaerobic fermentation, CODcr will drop from 5000 to 10000 mg/L to 500 to 800 mg/L, while the carbon to nitrogen ratio in fresh pig manure is 13:1, from the perspective of environmental protection It is not enough to rely solely on anaerobic technology for aquaculture

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
  • Comprehensive processing process and system for cultivation wastewater
  • Comprehensive processing process and system for cultivation wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A comprehensive treatment process for aquaculture wastewater, such as figure 1 with figure 2 As shown, the aquaculture wastewater from pig farms or breeding areas is collected by the sewage collection system, and then transported to the pretreatment tank I through the pipeline from the feed port 1, and after removing impurities through the grid 2, it flows into the middle for sludge settlement and preliminary treatment. Acidification, mixing and homogenization, etc., the settled sludge is regularly pumped out from the sludge collection well 3, and the homogeneous material liquid is transported to the anaerobic reactor II in a regular and quantitative manner by the lift pump 5 under the control of the automatic control system 4, Before entering the anaerobic reactor, the feed liquid is first sent to the warming water tank 6 at the top of the anaerobic reactor, and within a certain retention period, after the sunlight or greenhouse warms up, the feed liquid overflows int...

Embodiment 2

[0043] A comprehensive treatment system for aquaculture wastewater, such as figure 2 As shown, go through the following devices in turn:

[0044] a) Pretreatment pool, for grid filtration, homogeneous mixing and sediment settlement pretreatment;

[0045] b) a plug-flow anaerobic bioreactor, in which heating and anaerobic biofermentation are carried out;

[0046] c) A biomimetic pond system for advanced treatment of aquaculture wastewater, in which aerobic aeration, microbial degradation and plant absorption are performed.

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 relates to a process and a system for treating breeding wastewater comprehensively, wherein the process comprises the following steps: firstly, performing grating filtration, mixed homogenization and silt sedimentation pretreatment in a pretreatment tank; secondly, performing heating and anaerobic fermentation in an anaerobic reactor; and thirdly, treating the wastewater in a bionic pond, wherein the material liquid in a water distribution trough of the bionic pond enters a sand filter through the bottom of the water distribution trough and then is raised to a water drop step; and the material liquid flows into a pond body and flows out of the pond body after being treated by an artificial float grass belt and hydrophyte floating bodies in the pond. The process and the system have the advantages of simple process, good commonality, high treatment efficiency, low running cost, low investment cost, and simple system maintenance.

Description

【Technical field】 [0001] The invention belongs to the field of agricultural environmental protection, and relates to a comprehensive treatment method and treatment system for aquaculture wastewater in aquaculture plots. 【Background technique】 [0002] With the acceleration of the construction of new rural areas in my country and the rapid development of intensive pig farming, the large amount of wastewater generated in the process of breeding development is far from being absorbed by the land naturally, and constitutes a serious threat to the atmosphere, soil, groundwater and other receiving water bodies. Serious threat of pollution, aquaculture pollution problem has aroused the country's great attention. [0003] The aquaculture wastewater of pig farms or breeding areas mainly includes pig feces and urine sewage, housing flushing water, etc. The wastewater is rich in organic pollutants composed of carbon, nitrogen, phosphorus and sulfur, which are responsible for environment...

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): C02F9/14C02F1/40C02F3/30C02F3/34C02F3/32
CPCY02W10/37
Inventor 张克强杨鹏黄治平杜连柱王风
Owner AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
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