Livestock/poultry breeding wastewater resource utilization and regeneration recycling method

A technology for livestock and poultry breeding wastewater and resources, which is applied in the field of resource utilization and recycling of livestock and poultry breeding wastewater, can solve the problems of low nitrogen and phosphorus removal rates, insufficient recycling, high operating costs, etc., and achieve resource utilization The effect of high degree, meeting the water quality requirements for recycling, and reducing the cost of wastewater treatment

Inactive Publication Date: 2013-09-11
BOYING XIAMEN SCI & TECH
View PDF9 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Judging from the existing treatment technology and process, there are some shortcomings as follows: 1. Most of them adopt anaerobic primary treatment, which reduces most of COD, but the removal rate of nitrogen and phosphorus is not very high
2. N

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
  • Livestock/poultry breeding wastewater resource utilization and regeneration recycling method
  • Livestock/poultry breeding wastewater resource utilization and regeneration recycling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] refer to figure 1 , 500 tons / day livestock and poultry breeding waste water resource utilization and waste water regeneration recycling method.

[0050] The water quality indicators of the livestock and poultry breeding wastewater were determined as shown in Table 1.

[0051] serial number project unit measured value serial number project unit measured value 1 COD Cr mg / L 5000 5 Ammonia nitrogen mg / L 1000 2 SS mg / L 20000 6 Fecal coliforms pcs / L 2.5×10 7 3 BOD 5 mg / L 2900 7 roundworm eggs pcs / L 15000 4 Total Phosphorus mg / L 150

[0052] (1) Anaerobic digestion to produce biogas

[0053] The livestock and poultry breeding wastewater is collected through pipelines and then discharged into the anaerobic pool 1. The organic matter is decomposed into methane and carbon dioxide (the main components of biogas) under the combined action of anaerobic and facultative bacteria adsorpti...

Embodiment 2

[0073] refer to figure 1 , 1200 tons / day livestock and poultry breeding waste water resource utilization and waste water regeneration recycling method.

[0074] The water quality indicators of the livestock and poultry breeding wastewater were determined as shown in Table 6.

[0075] serial number project unit measured value serial number project unit measured value 1 COD Cr mg / L 13000 5 Ammonia nitrogen mg / L 1000 2 SS mg / L 16500 6 Fecal coliforms pcs / L 2×10 7 3 BOD 5 mg / L 4500 7 roundworm eggs pcs / L 12000 4 Total Phosphorus mg / L 180

[0076](1) Anaerobic digestion to produce biogas

[0077] The livestock and poultry breeding wastewater is collected through pipelines and then discharged into the anaerobic pool 1. The organic matter is decomposed into methane and carbon dioxide under the combined action of anaerobic and facultative bacteria adsorption, fermentation, and methanogeni...

Embodiment 3

[0096] refer to figure 2 , 2000 tons / day livestock and poultry breeding wastewater resources utilization and wastewater regeneration recycling method.

[0097] The water quality indicators of the livestock and poultry breeding wastewater were determined as shown in Table 11.

[0098] serial number project unit measured value serial number project unit measured value 1 COD Cr mg / L 7500 5 Ammonia nitrogen mg / L 600 2 SS mg / L 17000 6 Fecal coliforms pcs / L 3×10 7 3 BOD 5 mg / L 3900 7 roundworm eggs pcs / L 10000 4 Total Phosphorus mg / L 110

[0099] (1) Anaerobic digestion to produce biogas

[0100] The livestock and poultry breeding wastewater is collected through pipelines and then discharged into the anaerobic pool 1. The organic matter is decomposed into methane and carbon dioxide under the combined action of anaerobic and facultative bacteria adsorption, fermentation, and methanogeni...

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 livestock/poultry breeding wastewater resource utilization and regeneration recycling method which comprises the following steps of: (1) anaerobic digestion to produce biogas; (2) slag removal; (3) ammonia nitrogen removal; (4) biochemical treatment on a biological aerated filter (BAF); (5) disinfection; and (6) preparation of organic fertilizer. By combining the anaerobic technology, the denitrification technology, the BAF technology and the disinfection technology and adopting the livestock/poultry breeding wastewater as a resource, the method disclosed by the invention performs anaerobic fermentation treatment on the wastewater to produce biogas; the wastewater after the biogas production is subjected to solid-liquid separation; the solid slag is used as a raw material for producing organic fertilizer; the wastewater after the production of organic fertilizer is treated by the BAF technology and disinfected before recycling and up-to-standard emission; and the device realizes good treatment effect, low energy consumption and comprehensive utilization of resources while bringing economic benefits.

Description

technical field [0001] The present invention relates to a resource utilization and recycling method for livestock and poultry breeding wastewater, in particular to a comprehensive utilization of livestock and poultry breeding wastewater resources and wastewater regeneration and recycling based on anaerobic technology, denitrification technology, BAF technology and disinfection technology The method, especially using livestock and poultry breeding wastewater as a resource, processes it through anaerobic fermentation to produce biogas, the wastewater after producing biogas is then separated from solid and liquid, and the solid slag is used as a raw material for the production of organic fertilizers to produce organic fertilizers, wastewater After BAF technology and disinfection, it can be recycled and discharged up to standard, which belongs to the field of water pollution control of environmental engineering. Background technique [0002] Wastewater from livestock and poultry...

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): C02F9/14C10L3/08C05F7/00C05F15/00C02F103/20
CPCY02A40/20Y02E50/30Y02W30/40
Inventor 张世文徐琛林锦松许雅玲李丹
Owner BOYING XIAMEN 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