CN103482766A - Device for performing synchronous nitration and denitrification on percolate by using mineralized rubbish reaction bed - Google Patents
Device for performing synchronous nitration and denitrification on percolate by using mineralized rubbish reaction bed Download PDFInfo
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- CN103482766A CN103482766A CN201310448546.9A CN201310448546A CN103482766A CN 103482766 A CN103482766 A CN 103482766A CN 201310448546 A CN201310448546 A CN 201310448546A CN 103482766 A CN103482766 A CN 103482766A
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Abstract
The invention discloses a device for performing synchronous nitration and denitrification on a percolate by using a mineralized rubbish reaction bed. The device comprises the mineralized rubbish reaction bed and an aeration device, wherein a solid sampling opening is formed in the surface of the mineralized rubbish reaction bed; an effluent sampling opening and an aeration pipe are arranged at the lower part of the mineralized rubbish reaction bed; the aeration pipe is connected with a rotor flowmeter; the rotor flowmeter is connected with an air pump; the air pump is connected with a control box; a vent pipe is arranged in the center of the mineralized rubbish reaction bed; the top of the vent pipe is sealed; the pipe wall of the vent pipe is punched; the lower part of the vent pipe is connected with the aeration pipe; the outer part of the vent pipe is wrapped by a sand net; a cover and a funnel are arranged at the top of the mineralized rubbish reaction bed; a valve is arranged between the funnel and the cover; a polyvinyl chloride (PVC) plate, in which holes are uniformly distributed, is arranged at the bottom of the cover; the mineralized rubbish reaction bed is filled with a gravel layer, a mineralized rubbish layer and an inclined surface gravel layer; the inclined surface gravel layer is supported by an inclined plate in which holes are uniformly distributed; a temperature probe is embedded into the mineralized rubbish layer; the mineralized rubbish reaction bed is made of the PVC plate and is a place for performing reaction; the aeration device is a device for realizing synchronous nitration and denitrification. The device provided by the invention realizes synchronous nitration and denitrification in the mineralized rubbish so as to treat wastes by wastes.
Description
Technical field
The invention belongs to environmental technology field, the device that the percolate that particularly the biochemical rubbish in a kind of city produces is processed through the aged refuse reactor synchronous nitration and denitrification.
Background technology
Mineralized waste refer to rubbish landfill yard through for many years the degraded after, produce hardly percolate and gas, basically reach the state of stabilization.
Aged refuse reactor is using mineralized waste as filler and a kind of bio-reaction bed of microbe carrier, and it is because mineralized waste has following characteristics that mineralized waste can be used as filler: the specific surface area that (1) is larger, to such an extent as to adsorptive power is stronger; (2) mineralized waste also has the characteristics of infiltration rate and hydraulic load preferably for the wastewater treatment aspect, when the mineralized waste particle diameter is less than 0.25mm, its cation exchange capacity, total plate count and saturated hydraulic permeability coefficient reach respectively the dry rubbish of 68.7 meq/100 g, the dry rubbish of 8.6 * 106/g and 1.232 cm/min, so mineralized waste is the very good microbe carrier of disposing of sewage.
Tongji University is since the nineties in last century, aged refuse reactor based under anaerobic environment is processed to percolate and carried out some research work, but find that ammonia nitrogen removal frank is better, but nitrogen removal rate is low, some scholars are improved traditional anaerobism aged refuse reactor afterwards, propose the technical though that accurate aerobic aged refuse reactor is processed percolate, find that ammonia nitrogen removal frank is very high, the nitrogen removal rate initial stage is very high, and the later stage is undesirable.
Summary of the invention
The objective of the invention is to reduce nitrate and the contradiction that improves ammonia nitrogen removal frank for the nitrated stage in the traditional classical bio-denitrification technology, provide a kind of aged refuse reactor synchronous nitration and denitrification to process the device of percolate.
Thinking of the present invention: the main body using aged refuse reactor as reaction unit, by aerating apparatus is set, make in the mineralized waste bed to form aerobic zone, oxygen-starved area and anaerobic zone, synchronous nitration and denitrification occurs, simultaneously by optimizing operating parameter, as mineralized waste particle diameter, aeration rate, influent load, the water inlet frequency etc., determine in solid the top condition that realizes synchronous nitration and denitrification.
The present invention is achieved in that a kind of device of aged refuse reactor synchronous nitration and denitrification processing percolate, comprise aged refuse reactor and aerating apparatus, the main body that wherein aged refuse reactor is this device, its surface arranges the solid thief hole, the aged refuse reactor bottom sets out water sampling mouth and aeration tube, be equipped with valve on water outlet thief hole and aeration tube, aeration tube connects spinner-type flowmeter, spinner-type flowmeter is connected with air pump, air pump is connected with controlling box by circuit, set temperature indicating meter, aeration switch and temperature switch on controlling box; Aged refuse reactor central interior position arranges vent-pipe, and vent-pipe top seal, tube wall punching and bottom are connected with aeration tube, is beneficial to air and spreads to mineralized waste cylinder itself; Vent-pipe outer wrap sand net, stop up the hole on the vent-pipe tube wall to prevent mineralized waste; Add a cover on the aged refuse reactor top, has covered funnel, between funnel and lid, a valve is set, and for controlling water filling, the lid end adds the PVC plate in the even cloth of one deck hole, for water distribution uniformity; Aged refuse reactor loads gravel bed, mineralized waste layer and inclined-plane gravel bed from bottom to top successively, and the inclined-plane gravel bed is supported by the swash plate in even cloth hole, and three temp probes are imbedded the mineralized waste layer from top to bottom, for temperature in the heap body of measuring the mineralized waste layer.
Described aged refuse reactor adopts the PVC plate to make, and is the place that reactant is reacted.
Described aerating apparatus is the main device of realizing synchronous nitration and denitrification.
By parameter optimization, test, the optimized operation parameter of determining apparatus of the present invention is: the mineralized waste particle diameter between 4 ~ 10 millimeters, 0.1 liter/min of aeration rate, aeration 12 hours/day.
The advantage of apparatus of the present invention is:
(1) aerating apparatus is passed through in apparatus of the present invention setting, determine optimal aeration quantity, farthest in mineralized waste, realize synchronous nitration and denitrification, making to change into as far as possible gas into the water nitride discharges, and the digging utilization of mineralized waste, alleviate the burden of landfill yard, reached the purpose of the treatment of wastes with processes of wastes against one another.
(2) advantages such as apparatus of the present invention utilize aged refuse reactor to process percolate, have reduced investment, and operational management is simple and convenient, and treatment efficiency is high, and processing cost is low, have important practical significance to the developing country of economics of underdevelopment.
The accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention.
Mark in figure: 1-funnel; The 2-gravel bed; 3-mineralized waste layer; 4-solid thief hole; The 5-vent-pipe; 6-inclined-plane gravel bed; The swash plate in the even cloth of 7-hole; 8-water outlet thief hole; The 9-valve; The PVC plate in the even cloth of 10-hole; The 11-temp probe; The 12-spinner-type flowmeter; The 13-air pump; The 14-temperature indicator; The 15-controlling box; 16-aeration switch; The 17-temperature switch; The A-profile direction.
Fig. 2 is the sectional view of apparatus of the present invention.
Mark in figure: 4-solid thief hole; The 5-vent-pipe.
Embodiment
embodiment:
A kind of aged refuse reactor synchronous nitration and denitrification is processed the percolate device, comprise aged refuse reactor and aerating apparatus, the main body that wherein aged refuse reactor is this device, its surface arranges solid thief hole 4, the aged refuse reactor bottom sets out water sampling mouth 8 and aeration tube, be equipped with valve 9 on water outlet thief hole 8 and aeration tube, aeration tube connects spinner-type flowmeter 12, spinner-type flowmeter 12 is connected with air pump 13, air pump 13 is connected with controlling box 15 by circuit, set temperature indicating meter 14, aeration switch 16 and temperature switch 17 on controlling box 15; Aged refuse reactor central interior position arranges the vent-pipe 5 that diameter is 2.5 centimetres, and the top seal of vent-pipe 5, tube wall punching and bottom are connected with aeration tube, is beneficial to air and spreads to mineralized waste cylinder itself; Vent-pipe 5 outer wrap sand nets, stop up the hole on the vent-pipe tube wall to prevent mineralized waste; Add a cover on the aged refuse reactor top, has covered funnel 1, between funnel 1 and lid, a valve 9 is set, and for controlling water filling, the lid end adds the PVC plate 10 in the even cloth of one deck hole, for water distribution uniformity; Aged refuse reactor loads gravel bed 2, mineralized waste layer 3 and inclined-plane gravel bed 6 from bottom to top successively, inclined-plane gravel bed 6 is supported by the swash plate 7 in even cloth hole, three temp probes 11 are imbedded the mineralized waste layer from top to bottom, for temperature in the heap body of measuring the mineralized waste layer.
Aged refuse reactor in the present embodiment device is 0.37 meter by diameter, is highly that the PVC cylinder of 1 meter forms, and the damaged surface vertical direction is equidistant arranges three solid thief holes 4, and aged refuse reactor is the place that reactant is reacted.
Described aerating apparatus is the main device of realizing synchronous nitration and denitrification.
Described spinner-type flowmeter 12 adopts the LZB-3WB glass rotameter, and air pump 13 adopts LP-40 type air pump.
The gravel that described gravel bed 2 is 3 ~ 5 centimetres by particle diameter is loaded into pebble stone that the supporting layer of thick 10 centimetres is 1 centimetre with particle diameter and is loaded into the layer that catchments of thick 5 centimetres and form; Mineralized waste layer 3 is thick is 0.6 meter; The pebble stone that inclined-plane gravel bed 6 is 1 centimetre by particle diameter is filled, and the maximum ga(u)ge of inclined-plane gravel bed 6 is 5 centimetres.
Mineralized waste in above embodiment and percolate are all taken from Guilin City's refuse landfill of blurting out, sieve out the mineralized waste of 4 ~ 10 millimeters particle diameters from the mineralized waste with 10 years landfill ages with sieve, be filled in the reaction bed of mineralized waste, hydraulic load with 1.5 liters/day, the water inlet frequency water inlet of 1 times/day, aeration control is at 0.1 liter/min, every day, continuous aeration was 12 hours, aeration immediately after every day water inlet, within in process of the test every three days, get one time sample, operation through 5 months, the clearance of aged refuse reactor water outlet percolate COD can reach more than 85%, ammonia nitrogen removal frank reaches more than 95%, nitrogen removal rate also can reach 60% left and right.
Claims (1)
1. an aged refuse reactor synchronous nitration and denitrification is processed the device of percolate, it is characterized in that this device comprises aged refuse reactor and aerating apparatus, the main body that wherein aged refuse reactor is this device, its surface arranges solid thief hole (4), the aged refuse reactor bottom sets out water sampling mouth (8) and aeration tube, be equipped with valve on water outlet thief hole (8) and aeration tube, aeration tube connects spinner-type flowmeter (12), spinner-type flowmeter (12) is connected with air pump (13), air pump (13) is connected with controlling box (15) by circuit, the upper set temperature indicating meter (14) of controlling box (15), aeration switch (16) and temperature switch (17), aged refuse reactor central interior position arranges vent-pipe (5), and vent-pipe (5) top seal, tube wall punching and bottom are connected with aeration tube, is beneficial to air and spreads to mineralized waste cylinder itself, vent-pipe (5) outer wrap sand net, stop up the hole on vent-pipe (5) tube wall to prevent mineralized waste, add a cover on the aged refuse reactor top, has covered funnel (1), between funnel (1) and lid, a valve (9) is set, and for controlling water filling, the lid end adds the PVC plate (10) in the even cloth of one deck hole, for water distribution uniformity, aged refuse reactor loads gravel bed (2), mineralized waste layer (3) and inclined-plane gravel bed (6) from bottom to top successively, inclined-plane gravel bed (6) is supported by the swash plate (7) in even cloth hole, three temp probes (11) are imbedded the mineralized waste layer from top to bottom, for temperature in the heap body of measuring the mineralized waste layer,
Described aged refuse reactor adopts the PVC plate to make, and is the place that reactant is reacted;
Described aerating apparatus is the main device of realizing synchronous nitration and denitrification.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310448546.9A CN103482766A (en) | 2013-09-27 | 2013-09-27 | Device for performing synchronous nitration and denitrification on percolate by using mineralized rubbish reaction bed |
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| CN201310448546.9A CN103482766A (en) | 2013-09-27 | 2013-09-27 | Device for performing synchronous nitration and denitrification on percolate by using mineralized rubbish reaction bed |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249988A (en) * | 2008-03-27 | 2008-08-27 | 清华大学 | Method for processing landfill leachate and special device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249988A (en) * | 2008-03-27 | 2008-08-27 | 清华大学 | Method for processing landfill leachate and special device thereof |
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Application publication date: 20140101 |