Deep nitrogen and phosphorus removal process for surface water body

A deep denitrification and water body technology, applied in aerobic and anaerobic process treatment, water resource protection, adsorption water/sewage treatment, etc., can solve the problems of long time and slow ecological restoration

Active Publication Date: 2011-11-23
襄阳先创环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is currently considered to be one of the most promising technologies. It considers the regulation and construction of water systems from the perspective of ecological restoration, but it must also be seen that ecological restoration is usually a slow and long process.

Method used

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  • Deep nitrogen and phosphorus removal process for surface water body
  • Deep nitrogen and phosphorus removal process for surface water body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: preparation of solid carbon source

[0033] Starch is used as a carbon source, and polyvinyl alcohol is used as a skeleton to construct a slow-release carbon source material. Wheat, corn, potato, and tapioca starches were respectively selected to prepare slow-release organic carbon source material C-80 through solution wet blending and low-temperature jelly molding technology. The specific methods are as follows:

[0034] Weigh 40g of starch, add an appropriate amount of solvent water, and heat until gelatinization and dissolution under stirring. Different starches show different characteristics when gelatinization. Keep it for 1 hour, and mix with 60g of polyvinyl alcohol that has been dissolved in a 95°C water bath. Evenly, cool to room temperature, put in a low-temperature refrigerator, repeat the freezing-thawing process 4 times, and store the obtained product in a 4°C refrigerator for later use.

[0035] Cassava is in a state of continuous release in...

Embodiment 2

[0037] The device used in the present invention is as follows:

[0038] 1. Water intake lift pump

[0039] The water intake is lifted by a submersible lift pump, and the lift pump is installed on a bracket fixed on the river revetment for easy inspection and maintenance. A grille is set around the lift pump to intercept large-sized debris and prevent subsequent pipeline blockage.

[0040] Major equipment

[0041] According to the processing capacity of the treatment device, two submersible sewage pumps are used (one for use and one for standby).

[0042] Model: WQ80-60-15-8.0, 8.0kW, Q=80m 3 / h, H=15m, frequency conversion control.

[0043] In addition, install a fixed bracket and a set of grilles.

[0044] A check valve and a flow meter are installed on the outlet pipe to display the instantaneous flow.

[0045] 2. Nitrogen and phosphorus removal pool

[0046] The denitrification and phosphorus removal pool is divided into the core structure of the purification syste...

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Abstract

The invention provides a deep nitrogen and phosphorus removal process for a surface water body. The process mainly comprises six working sections, such as contact oxidation, rapid filtration, anaerobic denitrification, flocculation reaction, phosphorus sediment removal and phosphate removal through adsorption. The process is realized on the basis of improvement, strengthening and combination of the traditional treatment processes integrates a biological method, a chemical method and a physical method and is used for removing various pollutants in the water body effectively; the sewage purifying efficiency is remarkably increased; and an entire treatment device is free from odor and secondary noise pollution; a natural flow type combination mode is adopted in the design without any multistage elevating pump or reflux pump; a back washing system is arranged in a rapid filter and used for periodic back-washing, so that the problems of blocking and power consumption are solved; and the entire process has the advantages of full automation, no need of manual guard, and convenience for management and maintenance.

Description

(1) Technical field [0001] The invention relates to a process for deep denitrification and dephosphorization of surface water bodies. (2) Background technology [0002] In recent years, with the rapid and stable development of the economy, most of the surface water and groundwater in my country have been polluted to varying degrees. According to the 2003, 2006 and 2009 "China Environmental Status Bulletin" reported by the State Environmental Protection Agency, the key lakes under national control are monitored, and the main pollutants are total nitrogen (TN) and total phosphorus (TP). my country's per capita water resources are small, and the shortage of water resources and water environment pollution seriously restrict the sustainable development of social economy, endanger the ecological environment and affect people's health. The control of various forms of N and P in the river has gradually become the main task of water pollution control. [0003] The general urban riv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/30C02F1/52C02F1/28
CPCY02A20/402
Inventor 姜云荆政姜守国丁青松
Owner 襄阳先创环保科技有限公司
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