Emergency treatment tank for accident dangerous chemical water

Abstract

The utility model belongs to the technical field of water treatment, and particularly relates to an emergency treatment tank for accident dangerous chemical water. A water inlet of the emergency treatment pond is located in the ditch wall of the roadbed drainage side ditch, a water gate is installed on the downstream portion of the water inlet in the roadbed drainage side ditch, a blocking piece used for closing the water inlet is arranged at the water inlet of the emergency treatment pond, the water gate opening and water inlet closing state and the water gate closing and water inlet opening state are switched, and clear water and sewage diversion is achieved. The emergency treatment pond comprises a water collecting pond, a broken stone filtering pond, an activated carbon filtering pond, an acid-base reaction pond and a water storage pond which are arranged step by step, and the water collecting pond is connected with the water inlet; the dangerous chemical water treatment device can collect and treat dangerous chemical water on an upstream road surface in time, prevents accident dangerous chemical water from polluting a downstream water source, and has oil separation and slag separation treatment capacity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water treatment technical field, concretely relates to an emergency treatment pool for accident dangerous chemical water. BACKGROUND

[0002] Water source protection area is the water source of town and industrial enterprise, and our country has made many water resource protection related laws and regulations to protect it, article sixty-eight of the People's Republic of China Water Pollution Prevention Law, the people's governments at or above the county level shall, in accordance with the actual needs of protecting drinking water sources, take engineering measures or build wetlands, water conservation forests and other ecological protection measures within the quasi-protection area to prevent water pollutants from being directly discharged into drinking water bodies and to ensure drinking water safety, article seventy-seven, enterprises and institutions producing and storing dangerous chemicals shall take measures to prevent fire-fighting wastewater and waste liquid that may seriously pollute water bodies during the handling of safety production accidents from being directly discharged into water bodies.

[0003] Traffic engineering construction line often crosses or approaches water source protection area, and long distance linear slope line is inevitably designed, and long distance single slope pavement runoff will be discharged into downstream water source protection area, for example, long distance linear slope asphalt pavement runoff is discharged into downstream drinking water source through roadbed drainage side ditch, and when dangerous chemical vehicle has an accident on the upstream pavement, the decontamination and sterilization wastewater will be collected from the roadbed drainage side ditch and enter the downstream water source protection area, polluting the water body. Once the water body of the water source protection area is polluted on a large scale, it will cause immeasurable loss and safety risk. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of emergency treatment pools for accident dangerous chemical water, and the water inlet of emergency treatment pool is located in the ditch wall of roadbed drainage side ditch, water gate is installed in roadbed drainage side ditch downstream in water inlet, and the water inlet is provided with the blocking piece for closing water inlet at the water inlet of emergency treatment pool, and water gate opening, water inlet closing and water gate closing, water inlet opening state switching, realize clear water, sewage diversion.

[0005] The utility model provides the following technical scheme: an emergency treatment pool for accident dangerous chemical water, a water inlet of the emergency treatment pool is located in the ditch wall of a roadbed drainage side ditch, a water gate is installed in the roadbed drainage side ditch downstream of the water inlet, a blocking piece for closing the water inlet is arranged at the water inlet of the emergency treatment pool, and the water gate opening, water inlet closing and water gate closing, water inlet opening state switching, realize clear water, sewage diversion.

[0006] Further, the emergency treatment pool includes a catchment pool, a gravel filter pool, an activated carbon filter pool, an acid-base reaction pool and a water storage pool arranged step by step, and the catchment pool is connected to the water inlet.

[0007] Further, the catchment pool and the gravel filter pool are communicated through a first overflow water port at the top of the partition wall, and a grille is installed in the first overflow water port.

[0008] Further, clean gravel and activated carbon are respectively stacked in the gravel filter tank and the activated carbon filter tank, and the gravel filter tank and the activated carbon filter tank are communicated through a drain pipe with a hole in the pipe wall of the bottom of the partition wall.

[0009] Further, the activated carbon filter tank and the acid-base reaction tank are communicated through a second overflow water outlet in the top of the partition wall, and the acid-base reaction tank and the water storage tank are communicated through a third overflow water outlet in the top of the partition wall.

[0010] Further, the water gate comprises a lifting gate plate, a water gate frame and a lifting rod, the water gate frame spans the roadbed drainage side ditch, a rotating seat is installed on the water gate frame, a screw hole is arranged in the axis of the rotating seat, the lifting gate plate is movably inserted into a slot in the wall of the roadbed drainage side ditch, and the lower end of the lifting rod is connected with the lifting gate plate and the upper end of the lifting rod is screwed with the screw hole of the rotating seat.

[0011] Further, a sealing strip is arranged in the slot in the wall of the roadbed drainage side ditch, and a slot is also arranged in the bottom of the roadbed drainage side ditch, and a sealing strip is arranged in the slot.

[0012] Further, a water intercepting ditch is arranged on the top of the emergency treatment tank on the opposite side of the roadbed drainage side ditch, and the outlet of the water intercepting ditch is connected with the roadbed drainage side ditch.

[0013] Further, the emergency treatment tank is a reinforced concrete structure.

[0014] Compared with the prior art, the advantages of the utility model lie in that:

[0015] 1. The upstream road surface hazardous water can be collected and treated in time, the downstream water source protection area water body is prevented from being polluted by the accident hazardous water, and the water source of the protection area is protected.

[0016] 2. The emergency treatment tank is a conventional reinforced concrete structure, and no special sewage treatment equipment needs to be additionally purchased.

[0017] 3. In addition to the emergency treatment of the accident hazardous water, the road surface oil sewage can also be collected and treated, and the oil separation and residue separation treatment capacity is achieved.

[0018] 4. The utility model greatly reduces the construction difficulty and cost investment of the emergency treatment of the accident hazardous water, is a kind of safety reserve investment similar to the emergency escape lane arranged in the long and large downhill section of the highway, and has extremely extensive popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is an overall plan layout of the emergency treatment tank for accident hazardous water;

[0020] Figure 2 It is a plan layout of the emergency treatment tank for accident hazardous water;

[0021] Figure 3Elevation layout of the emergency treatment pool for hazardous chemical wastewater from an accident;

[0022] Figure 4 This is a structural diagram of the sluice gate elevation.

[0023] Figure 5 This is a detailed drawing of the intercepting ditch on the top of the pool.

[0024] In the diagram: 1-Roadbed drainage ditch; 2-Sluice gate; 2.1-Sluice gate frame; 2.2-Hanging rod; 2.3-Lifting gate plate; 2.4-Rotating seat; 3-Inlet; 4-Collection pool; 5-Gravel filter pool; 6-Activated carbon filter pool; 7-Acid-base reaction pool; 8-Water storage pool; 9-Expansion storage pool; 10-First overflow outlet; 11-Intercepting ditch; 12-Drainage pipe; 13-Second overflow outlet; 14-Third overflow outlet. Detailed Implementation

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] like Figure 1 The diagram shows an emergency treatment pool for hazardous wastewater. The inlet 3 of the emergency treatment pool is located on the wall of a roadbed drainage ditch 1. A sluice gate 2 is installed downstream of the inlet 3 within the roadbed drainage ditch 1. A plug is installed at the inlet 3 of the emergency treatment pool to close the inlet. The system switches between states where the sluice gate 2 is open and the inlet 3 is closed, and vice versa, to achieve separation of clean water and wastewater. The plug at the inlet 3 is made of 140×100×5 high-strength resin composite material.

[0027] The emergency treatment pool comprises a series of interconnected components: a collection pool 4, a gravel filtration pool 5, an activated carbon filtration pool 6, an acid-base reaction pool 7, and a storage pool 8. The collection pool is connected to the inlet 3. Plastic steel ladders are installed inside the collection pool 4 and the storage pool 8 for easy cleaning of the pool bottom.

[0028] Upstream road surface drainage is implemented according to the principle of separating clean and polluted water. When the road surface is draining normally, i.e., no accident has occurred, the sluice gate 2 in the roadbed drainage ditch 1 is open, and the inlet 3 of the emergency treatment pool is closed. The road surface water flows naturally into the downstream water system through the roadbed drainage ditch 1. When a chemical pollution accident occurs on the road surface, the sluice gate 2 in the roadbed drainage ditch 1 is closed, and the inlet 3 of the emergency treatment pool is opened. The road surface water enters the emergency treatment pool from the main roadbed drainage ditch 1. After emergency purification treatment through the gravel filter pool 5, activated carbon filter pool 6, and acid-base reaction pool 7, it enters the storage pool 8. After being pumped out, it is transported by vehicle to the next treatment location.

[0029] Emergency treatment pool is a reinforced concrete structure, construction technology mature, no need to purchase special sewage treatment equipment.

[0030] Emergency treatment pool needs to be isolated by a fence, and a lockable door is set at a suitable position for later maintenance, and a "danger" warning sign is set to prevent misentry.

[0031] As shown in Figure 2 , Figure 3 : the catchment basin 4 and the gravel filter tank 5 are connected through the first overflow water outlet 10 at the top of the partition wall, and a grille is installed in the first overflow water outlet 10. The accident hazardous water enters the catchment basin 4 through the water inlet 3, and when the water level reaches the bottom elevation of the first overflow water outlet 10, the decontamination wastewater flows into the gravel filter tank 5.

[0032] Clean gravel and activated carbon are respectively stacked in the gravel filter tank 5 and the activated carbon filter tank 6, and the gravel filter tank 5 and the activated carbon filter tank 6 are connected through the drain pipe 12 of the partition wall bottom pipe wall opening. The drain pipe 12 is a 20cm diameter perforated PVC pipe, the pipe spacing is 60cm, the hole diameter is 3cm, and the hole center spacing is 10cm, so as to ensure that the decontamination wastewater is fully filtered by gravel and activated carbon.

[0033] The activated carbon filter tank 6 and the acid-base reaction tank 7 are connected through the second overflow water outlet 13 at the top of the partition wall, and the acid-base reaction tank 7 and the water storage tank 8 are connected through the third overflow water outlet 14 at the top of the partition wall. When the water level of the decontamination wastewater in the activated carbon filter tank 6 reaches the bottom elevation of the second overflow water outlet 13, the wastewater enters the acid-base reaction tank 7 for further purification treatment, and after treatment, when the water level rises to the bottom elevation of the third overflow water outlet 14, it enters the water storage tank 8.

[0034] Considering the road hazardous chemical accident in heavy rain, in the tunnel outside the road section, according to the site conditions, the story emergency treatment pool can be implemented at one time or in sections, and the volume of the emergency treatment pool is determined according to the local maximum rainfall and the decontamination wastewater volume. When the required volume is expanded, it can be realized by setting an expanded water storage tank 9. The expanded water storage tank 9 needs to set a buttress retaining wall on the inner side of the tank wall to obtain a stable water storage tank wall structure.

[0035] As shown in Figure 4As shown: The sluice gate 2 includes a lifting gate plate 2.3, a sluice gate frame 2.1, and a lifting rod 2.2. The sluice gate frame 2.1 spans the roadbed drainage ditch 1. A rotating seat 2.4 is installed on the sluice gate frame 2.1. The rotating seat 2.4 has a screw hole at its axis. The lifting gate plate 2.3 is movably inserted into a slot in the wall of the roadbed drainage ditch 1. The lower end of the lifting rod 2.2 is connected to the lifting gate plate 2.3, and the upper end is screwed into the screw hole of the rotating seat 2.4. The lifting gate plate 2.3 is raised and lowered by the rotating seat 2.4 to achieve water interception and drainage functions. A sealing strip is installed in the slot in the wall of the roadbed drainage ditch 1, and a slot is also opened in the bottom of the roadbed drainage ditch 1, with a sealing strip installed in the slot to improve the water interception tightness. For ease of operation, a cover plate is added to the roadbed drainage ditch 1 before and after the inlet of the catchment pool and near the sluice gate.

[0036] like Figure 5 As shown: The top of the emergency treatment pool on the opposite side of the roadbed drainage ditch 1 is equipped with a water interception ditch 11, and the outlet of the water interception ditch 11 is connected to the roadbed drainage ditch 1; the water interception ditch 11 is used to intercept rainwater from the ground to prevent it from entering the pool and affecting the volume of the emergency treatment pool.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An emergency treatment pond for hazardous water from an accident, characterized in that: The water inlet (3) of the emergency treatment pool is located at the wall of the roadbed drainage ditch (1), a water gate (2) is installed in the roadbed drainage ditch (1) downstream of the water inlet (3), a blocking piece for closing the water inlet is arranged at the water inlet (3) of the emergency treatment pool, and the water gate (2) is opened, the water inlet (3) is closed, and the water gate (2) is closed, the water inlet (3) is opened, so that the clean water and sewage are diverted.

2. The emergency treatment pond for hazardous water according to claim 1, characterized in that: The emergency treatment pool comprises a water collecting pool (4), a gravel filter pool (5), an activated carbon filter pool (6), an acid-base reaction pool (7) and a water storage pool (8) arranged in stages, and the water collecting pool is connected with the water inlet (3).

3. The emergency treatment pond for hazardous water according to claim 2, characterized in that: The water collecting pool (4) and the gravel filter pool (5) are communicated through a first overflow water outlet (10) at the top of the partition wall, and a grille is installed in the first overflow water outlet (10).

4. The emergency treatment pond for hazardous water according to claim 3, characterized in that: Clean gravel and activated carbon are respectively stacked in the gravel filter pool (5) and the activated carbon filter pool (6), and the gravel filter pool (5) and the activated carbon filter pool (6) are communicated through a drainage pipe (12) with a hole in the pipe wall at the bottom of the partition wall.

5. The emergency treatment pond for hazardous water according to claim 4, characterized in that: The activated carbon filter pool (6) and the acid-base reaction pool (7) are communicated through a second overflow water outlet (13) at the top of the partition wall, and the acid-base reaction pool (7) and the water storage pool (8) are communicated through a third overflow water outlet (14) at the top of the partition wall.

6. The emergency treatment pond for hazardous water according to claim 1, characterized in that: The water gate (2) comprises a lifting gate plate (2.3), a water gate frame (2.1) and a lifting rod (2.2); the water gate frame (2.1) spans the roadbed drainage ditch (1), a rotating seat (2.4) is installed on the water gate frame (2.1), a screw hole is arranged at the axis of the rotating seat (2.4), the lifting gate plate (2.3) is movably inserted into the slot in the wall of the roadbed drainage ditch (1), the lower end of the lifting rod (2.2) is connected with the lifting gate plate (2.3), and the upper end of the lifting rod (2.2) is screwed with the screw hole of the rotating seat (2.4).

7. The emergency treatment pond for hazardous water according to claim 6, characterized in that: The slot in the wall of the roadbed drainage ditch (1) is provided with a sealing strip, and the bottom of the roadbed drainage ditch (1) is also provided with a slot provided with a sealing strip.

8. The emergency treatment pond for hazardous water according to any one of claims 2 to 6, characterized in that: The pool top of the emergency treatment pool on the opposite side of the roadbed drainage ditch (1) is provided with a water intercepting ditch (11), and the outlet of the water intercepting ditch (11) is connected with the roadbed drainage ditch (1).

9. The emergency treatment pond for hazardous water according to claim 2, characterized in that: The emergency treatment pool is a reinforced concrete structure.

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