Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A reactor, system and method for in situ resource recovery of urine

A technology of resource recovery and reactor, applied in the direction of chemical instruments and methods, applications, climate change adaptation, etc., can solve the problems of water treatment facility blockage, transparency decline, carcinogenicity, etc., achieve efficient recovery, simple structure, and avoid losses Effect

Active Publication Date: 2022-06-24
BEIJING FORESTRY UNIVERSITY
View PDF18 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Eutrophication of the water body occurs, the transparency of the water decreases, and aquatic organisms such as fish and shrimp die in large numbers, which greatly destroys the ecological balance of the water environment and accelerates the process of swamping and terrestrialization of the water body; Nitrosamines are carcinogenic and seriously threaten human health; the sources of urban water supply are rivers and lakes, and the algae and microorganisms carried in the water can easily cause water treatment problems. Obstruction of facilities, thereby interfering with the healthy operation of the waterworks

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
  • A reactor, system and method for in situ resource recovery of urine
  • A reactor, system and method for in situ resource recovery of urine
  • A reactor, system and method for in situ resource recovery of urine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: Exploratory experiment of biochar and magnesia-loaded biochar loading

[0040] In this example, the nitrogen, phosphorus and potassium resources recovered from urine are filled with biochar and magnesium oxide-loaded biochar, and the filling amount of biochar and magnesium oxide-loaded biochar is determined according to the properties of urine, biochar properties and the replacement cycle of the reactor. First, set the reactor replacement cycle to 10 days, the number of urination per day is 0.2 per day, the ammonia nitrogen adsorption capacity of the biochar is 10mg / g, and the magnesium content of the magnesium oxide loaded biochar is 15%. The formula for calculating the filling amount of biochar is as follows;

[0041]

[0042] The filling amount of biochar was 0.56kg, and the filling amount of magnesium oxide-loaded biochar was 0.09kg.

[0043] The results of resource recovery are: the recovery rate of ammonia nitrogen is 99%, the recovery rate of phosp...

Embodiment 2

[0044] Example 2: Exploring experiment of biochar and magnesia-loaded biochar loading

[0045] The operation steps of filling the filler for recovering urine nitrogen, phosphorus and potassium resources in this example are the same as those in Example 1, and the difference from Example 1 is that the capacity of the biochar to adsorb ammonia nitrogen set in this example is 4 mg / g, and the biochar is obtained. The filling amount is 1.40kg. The results of resource recovery are: the recovery rate of ammonia nitrogen is 99%, the recovery rate of phosphorus is 93%, and the recovery rate of potassium is 24%. The comparison between Examples 1 and 2 shows that when the adsorption capacity of biochar to ammonia nitrogen is high, the filling amount of biochar can be reduced, thereby reducing the cost of technical application, and the recovery rate of potassium resources is higher, and the resource recovery effect is better.

Embodiment 3

[0046] Example 3: Exploratory experiment of biochar and magnesia-loaded biochar loading

[0047] The operation steps of filling the filler for recovering urine nitrogen, phosphorus and potassium resources in this example are the same as those in Example 1, and the difference from Example 1 is that the magnesium content of the magnesium oxide-loaded biochar set in this example is 5%, and the magnesium oxide-loaded biochar is set at 5%. The biochar filling amount is 0.27kg. The results of resource recovery are: the recovery rate of ammonia nitrogen is 99%, the recovery rate of phosphorus is 92%, and the recovery rate of potassium is 26%. The comparison between Examples 1 and 3 shows that when the magnesium content of the magnesium oxide-loaded biochar is high, and the magnesium element content of the magnesium oxide-loaded biochar is high, the filling amount of the magnesium oxide-loaded biochar can be reduced, which is beneficial to reduce the cost of technical application.

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
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
adsorption capacityaaaaaaaaaa
Login to View More

Abstract

A reactor, system and method for in-situ resource recovery of urine, belonging to the technical field of urine recovery. The reactor includes a reactor main body, the upper and lower ends of the reactor main body are the water inlet or the water outlet respectively, the water inlet is connected to urine, and the water outlet discharges the residual urine after recovering nitrogen, phosphorus and potassium; the reactor main body is filled with adsorbed nitrogen The packing of phosphorus and potassium resources, the packing and the main body of the reactor can be disassembled; the pressure plate with tubes is set between the main body of the reactor and the water inlet and outlet ends, the main body of the reactor and the pressure plate with tubes are connected by flanges, and the main body of the reactor and the pressure plate with tubes A filter plate is arranged in the middle of the pressing plate. The system includes a urine collection sanitary ware, a filter device and a reactor connected in turn by pipelines, and the reactor is passed through or emptied by controlling the opening and closing of the valve, so that the filler can be used to recover nitrogen and phosphorus or the filler can be recovered. The invention has simple structure, no power, and can be disassembled, and efficiently recovers most of nitrogen, phosphorus and part of potassium in urine from the source, realizes effective utilization of resources and reduces urban sewage treatment load.

Description

technical field [0001] The invention belongs to the technical field of urine recovery, and relates to a reactor, a system and a method for in-situ resource recovery of urine. Background technique [0002] 80% of N, 50% of P and 55% of K in municipal wastewater are derived from urine. The mixed collection of sewage and urine significantly increases the treatment load of the sewage treatment plant. To date, removal of nitrogen and phosphorus from wastewater has been costly, but still creates an unbalanced water-energy-nutrient relationship. The content of N, P, K and other elements in urine is high, and urine can be regarded as a concentrated solution of nitrogen, phosphorus and potassium. If it is not treated effectively, it will be the main pollution source of water eutrophication. Eutrophication occurs in the water body, the transparency of the water decreases, and aquatic organisms such as fish and shrimp die in large quantities, which greatly destroys the ecological bal...

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 Patents(China)
IPC IPC(8): C02F1/28B01D15/08C05G1/00C05F3/04C05F3/06
CPCC02F1/283B01D15/08C05F3/04C05F3/06C05D9/00C02F2103/005Y02A40/20
Inventor 徐康宁王林林刘静岩
Owner BEIJING FORESTRY UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com