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Water body purification gallery and technology used for river channel water body ammonia nitrogen in situ treatment

A water purification and in-situ treatment technology, which is applied in biological water/sewage treatment, water/sludge/sewage treatment, polluted waterways/lakes/ponds/rivers treatment, etc., which can solve the problem of large footprint and high investment , cumbersome operation and maintenance, etc., to achieve fast start-up speed, high oxygen mass transfer rate, and good effect of dissolved oxygen

Pending Publication Date: 2017-05-24
ZHEJIANG YUTENG BAINUO ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of the existing river restoration technology for the removal of ammonia nitrogen, the equipment occupies a large area, the initial investment is high, and the later operation and maintenance are cumbersome. Therefore, a kind of in-situ ammonia nitrogen removal effect and strong practicability is proposed. Purify corridor

Method used

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  • Water body purification gallery and technology used for river channel water body ammonia nitrogen in situ treatment
  • Water body purification gallery and technology used for river channel water body ammonia nitrogen in situ treatment
  • Water body purification gallery and technology used for river channel water body ammonia nitrogen in situ treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] A 100-meter-long experimental river section was selected in Zheshan Port, Yuhang District, Hangzhou City. Zheshan Port has a total length of 7.08 kilometers, a river surface width of 15-30 meters, and a current water level of 2.4 meters. The water quality is inferior to Class V water bodies.

[0081] The water body purification corridor of the present invention is installed in the wide waters of Zheshan Port. The whole is 5 grades of corridors connected in series, and the polyurethane and bamboo ball fillers with successful film formation are put into the corridors. The corridor as a whole is suspended above the bottom mud of the polluted river body, and the lowest point of the corridor bottom is 1 meter underwater.

[0082] Zheshan Port is a flowing water body, and the flow rate is limited to 0.01m / s by operating the flow control valve. Turn on the nano-bubble machine to generate oxygen-enriched water with a pore size of 300 mm, which is sent from the outlet pipe to t...

Embodiment 2

[0090] A 60-meter-long test river section was selected in Jijiaba Port, Renhe Street, Yuhang District, Hangzhou City. The total length of Jijiaba Port is 940m, the width is about 10-15m, the average water depth is 1m, the water surface area of ​​the river is about 10,000 square meters, and the water quality is inferior to Class V water body.

[0091] The water purification corridor of the present invention is installed in the wide waters of Jijiaba Port. The overall corridor is a 3-stage series connection, and the polyurethane and bamboo ball fillers that have been successfully filmed are put into the corridor. The corridor as a whole is suspended above the bottom mud of the polluted river body, and the lowest point of the corridor bottom is 0.8 meters underwater. The deflector is set at 120°, 3 meters from the last corridor.

[0092] The port of Jijiaba is the Duantou River, equipped with a 0.9kW.h thruster. Turn on the nano-bubble machine to generate oxygen-enriched water ...

Embodiment 3

[0100] A test river section with a length of 80 meters was selected in Mujiaba Port, Renhe Street, Yuhang District, Hangzhou City. The east-west direction of Mujiaba Port is about 759m long, 5-10m wide (average width is about 7m), and the average water depth is 1m. The water depth is 1m, and the total water surface area of ​​the river is about 12000m 2 .

[0101] Install a water purification corridor in the "7"-shaped tributary of Mujiaba Port. The overall corridor is a 4-level series connection, and the polyurethane and bamboo ball fillers that have been successfully filmed are placed in the corridor. The corridor as a whole is suspended above the bottom mud of the polluted river body, and the lowest point of the corridor bottom is 1 meter underwater. The deflector is set at 150°, 3.5 meters away from the last corridor.

[0102] Mujiaba Port is the Duantou River, equipped with a 1.2kW.h thruster. Turn on the nano-bubble machine to generate oxygen-enriched water with a por...

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Abstract

The invention discloses a water body purification gallery and technology used for river channel water body ammonia nitrogen in situ treatment. The gallery comprises at least two stages of gallery monomers which are connected in series and also comprises a nano aeration machine and a speed control device arranged at a water inlet end of a primary gallery monomer; each gallery monomer comprises a floating frame body, a screen frame fixed on the floating frame body and a water distribution pipe arranged in a nitrification filler region, wherein the floating frame body comprises a floating pipe floating on water, a plurality of fixed links driven in a river bottom along the floating pipe and plastic pipes which sheathe the corresponding fixed links in a penetrating way; the interior of the screen frame is sequentially divided into a nitrification filler region, a transition region and a denitrification filler region along the water flow direction by virtue of a water flowing screen; and the water distribution pipe is externally connected with the nano aeration machine. The water body purification gallery and technology can be used for solving the problems that an ammonia nitrogen removal device in an existing river channel restoration technology occupies a large area, front-end investment is high and late operating maintenance is complicated.

Description

technical field [0001] The invention relates to the technical field of river course management, in particular to a water purification corridor and a process for in-situ treatment of ammonia nitrogen in river water. Background technique [0002] As my country attaches great importance to river management, domestic water discharge standards are increasing day by day, and ammonia nitrogen is an important pollution indicator for river management. Ammonia nitrogen in water is mainly manifested as free ammonia (NH 3 ) and ammonia ions (NH 4 + ). Ammonia nitrogen, as a water body nutrient, has a high concentration and serious eutrophication of the water body, which reduces the dissolved oxygen in the river; the concentration of ammonia nitrogen rises, and free ammonia (NH 3 ) and ammonia ions (NH 4 + ) has a toxic effect on fish and other organisms in the water body; ammonia nitrogen produces nitrite nitrogen and nitrate nitrogen through the nitrification of nitrosifying bact...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F101/16
CPCC02F3/302C02F2203/006C02F2101/16C02F2103/007Y02A20/402Y02W10/10
Inventor 厉炯慧冯华军项林
Owner ZHEJIANG YUTENG BAINUO ENVIRONMENTAL PROTECTION TECH CO LTD
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