Drinking water purification device for simultaneously removing organic matter and ammonia nitrogen and method

A water purification and organic matter technology, applied in chemical instruments and methods, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of incomplete degradation, poor adsorption effect, etc., achieve reasonable duration and improve water output effect , good removal effect

Inactive Publication Date: 2017-12-19
HOHAI UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention also provides a drinking water purification method for simultaneously removing organic matter and ammonia nitrogen. The method breaks through the limitation of dissolved oxygen in water on the basis of biological activated carbon adsorption technology, and utilizes sludge reflux to solve the problem of carbon sludge reflux at the bottom of sedimentation tanks. At the same time, the carbon slime does not completely degrade the organic matter and ammonia nitrogen in it, and the adsorption effect is not good when mixed with raw water, so as to improve the water treatment effect, and at the same time reduce the requirements for the scale of the return system, which is convenient for the transformation of the water plant

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
  • Drinking water purification device for simultaneously removing organic matter and ammonia nitrogen and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a drinking water purification device that removes organic matter and ammonia nitrogen at the same time includes a mixing tank, a flocculation tank, a sedimentation tank, a concentration tank and a degradation tank that are connected end to end in sequence. The coagulant dosing pipeline, the concentration tank is provided with a mud discharge pipeline, the degradation tank is provided with an aeration pipeline, the degradation tank and the mixing tank are connected by a carbon mud return pipeline, and the flocculation tank is provided with a mixer. The mixing tank includes a static mixer or a mechanically agitated mixing tank.

[0031] A drinking water purification method for simultaneously removing organic matter and ammonia nitrogen, comprising the following steps:

[0032] a) The raw water enters the mixing tank and is quickly mixed with carbon mud, coagulant and newly added powdered activated carbon;

[0033] b) The mixed water enters the...

Embodiment 2

[0048] The difference between this embodiment and embodiment 1 is only:

[0049] a) The dosage of coagulant in the step is 40mg / L.

[0050] The hydraulic retention time in the flocculation tank is 35min.

[0051] The hydraulic retention time in the concentration tank is 10h.

[0052] The aeration time of the degradation pond is 7 hours, and the aeration rate is 1:80.

[0053] In this embodiment, using this purification method, the carbon mud is degraded by concentration and aeration, and then flows back into the mixing tank. The turbidity of raw water before treatment is about 6.21NTU, UV 254 about 0.054 cm -1 、COD Mn It is about 3.04mg / L, ammonia nitrogen is about 1.12mg / L, and the initial carbon input amount is 2000mg / L. After three weeks of stable operation, the sludge concentration in the degradation tank is about 3400mg / L; the turbidity of the effluent is about 1.23NTU, UV 254 about 0.034 cm -1 , COD Mn About 1.67mg / L, ammonia nitrogen is about 0.61mg / L.

[0054...

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 drinking water purification device for simultaneously removing organic matters and ammonia nitrogen. The device comprises a mixing tank, a flocculation basin, a settling pond, a concentration tank and a degradation tank in head-to-end connection in sequence. The invention further discloses a drinking water purification method for simultaneously removing organic matters and ammonia nitrogen. The method integrates functions of coagulation, settling, adsorption, carbon sludge backflow, biodegradation and the like, the removal effect on organic matters and ammonia nitrogen in water can be effectively improved, meanwhile the sludge discharge amount is greatly reduced, the sizes of the degradation tank and a carbon sludge backflow system are reduced, sludge can be sufficiently degraded in the degradation tank, and thus the removal effect of the method on pollutants such as organic matters and ammonia nitrogen in water is intensified.

Description

technical field [0001] The invention relates to a drinking water purification device and method for simultaneously removing organic matter and ammonia nitrogen, and belongs to the technical field of drinking water treatment. Background technique [0002] The treatment of organic matter and ammonia nitrogen is two major problems that must be faced in the water treatment of most cities in my country. The organic matter in water source water will generate disinfection by-products in the disinfection treatment, which seriously threatens human health when drinking for a long time; the ammonia nitrogen in drinking water exceeds the standard for a long time, It can also adversely affect human health. At present, in the actual production of water supply plants, biological pretreatment or biological activated carbon are often used to improve the removal effect of organic matter and ammonia nitrogen at the same time, but these two processes require new large-scale treatment structures,...

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): C02F9/14C02F11/12C02F11/02C02F101/16C02F101/30
CPCC02F1/283C02F1/5236C02F9/00C02F11/02C02F11/12C02F2001/007C02F2101/16C02F2101/30Y02W10/20
Inventor 陈卫陈兆霖陶辉胡凯
Owner HOHAI UNIV
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