Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for processing city waste water and industrial organic waste water

A sewage treatment method and organic wastewater technology, applied in the field of sewage treatment, can solve the problems of increasing investment in sedimentation tanks, increasing energy consumption and investment, and short residence time, so as to increase the unit volume load and removal rate, and improve the treatment effect of sewage , Increase the effect of hydraulic retention time

Inactive Publication Date: 2008-02-27
简放陵
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional biological filter has the characteristics of low investment and low operating cost, but because it is a vertical flow type, it has the following defects: short residence time, uniform water distribution, easy to block, poor treatment effect, and small treatment capacity, only suitable for for small scale wastewater treatment
The biological contact oxidation method (submerged biological filter) has the advantages of good CODcr removal effect and short residence time, but since there is no anaerobic treatment area, the entire treatment tank needs aeration, which increases energy consumption; and there is no denitrification and dilution In the phosphorus process, the denitrification and phosphorus removal effect is poor; the hanging filler needs to be installed with brackets, which increases investment and is not easy to maintain; the treated water also needs to be discharged in a sedimentation tank to meet the sedimentation capacity, which increases the investment in the sedimentation tank; the seizure reduces the project investment ; However, an anaerobic treatment and sedimentation system is added before the biological aerated filter, and the entire aerobic treatment system needs air-water recoil, which increases the difficulty of investment and operation management; and the phosphorus does not meet the standard, and coagulation treatment needs to be added; Ammonia nitrogen only has nitrification, and if there is no nitrification, if denitrification is required, the treated water must be returned to the anaerobic treatment system, which increases energy consumption and investment

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] This embodiment adopts a cross-flow biofilter, which is mainly composed of an aerobic zone in the front section, an anaerobic zone and a filter tank in the back section, wherein there are two aerobic zones and two anaerobic zones respectively, with Aerobic zone 1 / anaerobic zone 1 / aerobic zone 2 / anaerobic zone 2 are set alternately, and anaerobic zone 2 can be used as a clarification zone; the filter tank has a recoil system.

[0019] In the aerobic zone and anaerobic zone, the suspended filler with a specific gravity of 0.8-1 and a particle size of 1-5cm produced by Guangdong Shunde Hengrui Environmental Protection Equipment Material Factory is used, and the dosage is 20% of the volume of the treatment tank. In the filter tank, the dephosphorization filter material produced by Guangdong Shunde Hengrui Environmental Protection Equipment Material Factory is used for treatment.

[0020] During the treatment, the urban sewage is first passed through the grid machine and the...

Embodiment 2

[0027] The differences between this example and Example 1 are: the hydraulic retention time is 4h, the dosage of suspended filler is 50% of the volume of the treatment tank, the thickness of the dephosphorization filter material is 1500mm, the recoil cycle is 1d, and the recoil time is 30min .

[0028] The treated effluent has the following results:

[0029] CODcr BOD 5 NH 3 -N TP SS

[0030] Influent concentration: 610 360 28 4.8 320

[0031] Effluent concentration: 52 12 11 0.6 12

[0032] It can be seen from the above results that the emission standards stipulated by the state have been met.

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
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The present invention discloses method of treating city sewage and organic industrial waste water in a transverse flow biological filtering pond. The transverse flow biological filtering pond consists of mainly aerobic areas, anaerobic areas, and filtering pond in the back section. There are at least two aerobic areas and two anaerobic areas with suspended stuffing; and the filtering pond is provided with back flashing system and dephosphorizing filtering material. The city sewage and organic industrial waste water are first treated in the aerobic areas and anaerobic areas alternately and then filtered in the filtering pond before being drained. The present invention combines the advantages of biological filtering pond, immersed biological filtering pond and aerobic biological filtering pond to form the transverse flow biological filtering pond with high treating effect and low treating cost.

Description

technical field [0001] The invention relates to a sewage treatment technology, in particular to a treatment method for urban sewage and industrial organic waste water. Background technique [0002] The traditional biological filter has the characteristics of low investment and low operating cost, but because it is a vertical flow type, it has the following defects: short residence time, uniform water distribution, easy to block, poor treatment effect, and small treatment capacity, only suitable for for small-scale wastewater treatment. The biological contact oxidation method (submerged biological filter) has the advantages of good CODcr removal effect and short residence time, but since there is no anaerobic treatment area, the entire treatment tank needs aeration, which increases energy consumption; and there is no denitrification and dilution In the phosphorus process, the denitrification and phosphorus removal effect is poor; the hanging filler needs to be installed with...

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): C02F3/30
Inventor 简放陵
Owner 简放陵