CN101302064A

CN101302064A - Sewage treating apparatus

Info

Publication number: CN101302064A
Application number: CNA2008100316314A
Authority: CN
Inventors: 周大军; 揭嘉; 方球国
Original assignee: Xiangtan University
Current assignee: Xiangtan University
Priority date: 2008-06-26
Filing date: 2008-06-26
Publication date: 2008-11-12

Abstract

The invention discloses a sewage treatment device, wherein, a wave tube and an adsorption tube are arranged on a gas-liquid separating tank, a nozzle is arranged in the wave tube, and adsorbent is filled in the adsorption tube; an inlet pipe of a sewage pump is connected with a sewage valve, while an inlet pipe of the sewage pump is connected with the nozzle; a wind pipe of a draught fan is connected with the wave tube; an outlet port is arranged on the side wall of the gas-liquid separating tank, and is provided with an outlet valve; and a sewage discharge port is arranged on the bottom end of the gas-liquid separating tank, and is provided with a sewage discharge valve. The sewage treatment device can reduce 30 to 50 percent of construction investment of the device under the same sewage treatment capability, the same water quality and the same technical requirement, reduce 50 to 70 percent of occupied area compared with a sewage treatment device with the same treatment capability, operate under a high salt content environment, a high acidity environment, a high alkalinity environment and other severe environments, and be used for the treatment of high-concentration industrial sewage. The sewage treatment device adopts the integrated design of reaction and separation, so that a reaction product can be separated quickly, and the process of oxidation reaction can be greatly strengthened. The sewage treatment device sufficiently uses the dynamic wave principle, effectively simplifies the structure of the device, increases mass transfer area, strengthens the degree of turbulent motion of gas phase and liquid phase, and effectively improves the mass transfer rate of oxidation reaction and separation, thereby acquiring higher sewage treatment efficiency.

Description

Sewage disposal device

Technical field

The present invention relates to a kind of sewage disposal device.

Background technology

The sewage treatment process type that present China is adopted mainly contains following several: traditional active sludge treatment process, adsorption biodegradation, A/O and A2/O technology, hydrolysis-aerobic process, oxidation ditch process, SBR and modification technology thereof, biological aerated filter process, biological contact oxidation metallization processes, oxidation pond, BIOLAK and soil treatment process.Development along with the sewage disposal cause, existing multiple sewage treatment process has obtained application in wastewater treatment in China factory, wherein with A/O, A2/O and deformation technique thereof, oxidation ditch, SBR and modification technology thereof are main, other technology such as adsorption biodegradation, BAF, hydrolysis-aerobic process, the biological contact oxidation metallization processes, stabilization pond, BIOLAK technology, sewage treatment process such as soil processing also have the application of certain scale, the following problem that single wastewater treatment in China cause still faces: build the working cost height as sewage work, floor space is big, and the secondary treatment problem of discharge mud etc.And be still very stubborn problem for the processing of supersalinity, ammonia nitrogen in high density or organic waste water.At present, several main methods of domestic ammonia nitrogen in high density waste liquid comprise ammonia blow-off method, chemical precipitation (MAP) method and biological treatment etc.Wherein the ammonia blow-off method is mainly used in the pre-treatment of high density amine nitrogen waste water, by regulating the pH value of waste water, control water temperature, water distribution load and vapor-liquid ratio, though utilize the physical action of air or steam stripping that amine nitrogen is shifted to meteorology from liquid phase. equipment is simple, control easily, stripping efficient is limited, energy consumption is big, even multistage stripping device also can only reach the removal efficient of 70%-80%.Chemical precipitation method is magnesium salts and the phosphoric acid salt that adds solubility in ammonia nitrogen waste water, and making the krypton nitrogen transformation in the waste water is MgNH ₄PO ₄6H ₂O (being called for short MAP) precipitation, thereby the ammonia nitrogen in the removal waste water, this method technology is simple, removing efficient can reach about 85%, but dosing is big, and processing cost is higher, sedimentary secondary treatment, and medicament adds the chlorion of introducing and the pollution of phosphonium ion is still the difficult problem that needs solution.Biological treatment is thorough to the degraded of amine nitrogen, treatment effect can be up to state standards, use wider at present, handle lower concentration amine nitrogen waste water but be only limited to, can't satisfy the processing of high-concentration ammonia nitrogenous wastewater, especially the higher ammonia nitrogen waste water of saltiness, more be difficult to adopt biological process to be handled, and the biological treatment floor space is big, for high density amine nitrogen waste water, also need to set up materialization and handle, energy consumption and processing cost are increased greatly. along with going deep into of studying, some novel amine nitrogen treatment processs have also appearred in recent years, such as membrane processing method, catalytic wet air oxidation, stack gas improvement method etc., but it is in theory or still exist in the practice problem to be solved is much arranged.

Summary of the invention

The purpose of this invention is to provide a kind of efficient sewage treatment installation.

The objective of the invention is to realize in the following way: a kind of sewage disposal device, wave duct and adsorption tube are housed on knockout drum, nozzle is housed in wave duct, at adsorption tube sorbent material is housed; The sump pump water inlet pipe connects sewage valve, and rising pipe connects nozzle; The airduct of blower fan connects wave duct; Sidewall at knockout drum has water outlet, and outlet valve is arranged on the water outlet; There is sewage draining exit bottom at knockout drum, and wash water valve is arranged on the sewage draining exit.

The secondary treatment outlet is arranged on knockout drum, the secondary treatment valve in the secondary treatment outlet, the secondary treatment valve connects the sump pump water inlet pipe.

At adsorption tube the sorbent material charging opening is arranged.

The treatment agent charging opening is arranged on knockout drum, on the treatment agent charging opening, charging valve is arranged.

Two parallel longitudinal dividing plates are arranged in knockout drum.

The present invention has following beneficial effect, and 1, under the sewage treatment capacity identical, water quality and the technical requirements condition, the plant construction investment can reduce 30～50%; 2 compare with the waste disposal plant of equal processing power, and floor space can reduce 50～70%; 3, can under severe environment such as supersalinity, peracid, basicity, work, can be used for the processing of high-concentration industrial sewage.4, adopt the integrated design of reaction, sepn process, made the reaction product be able to rapid separation, strengthened oxidation reaction process greatly.5, made full use of the dynamic wave principle, effectively simplified the structure of installing, increased mass transfer area, strengthened the less turbulence of gas-liquid two-phase, effectively improved oxidizing reaction and isolating rate of mass transfer, so can obtain higher sewage treating efficiency.6, device operation is at normal temperatures compared with the waste disposal plant of similar purposes, and energy consumption can reduce 30～40%, even TAN surpasses the high-concentration waste water of 10000mg/L, need not heat up, and clearance also can reach more than 95%.7, the present invention mainly adopts the physical method under the normal temperature to handle industrial sewage, device structure is simple, compact, and processing and fabricating is easy, cost of equipment is low, so the energy consumption of sewage disposal is low, it is few to consume, compare with the waste disposal plant of similar purposes, processing cost can descend 20～40%.8, the combined moving Reeb sewage disposal isolated plant that utilizes the present invention to make can substitute existing hydrolysis-aerobic process, oxidation ditch process, biological aerated filter process, biological contact oxidation metallization processes, and other aerations of deutero-, oxidizing process or pre-reaction device, and reaction efficiency will improve 20～30%.If 9 change liquid phase desulfurization, the denitrfying agent of special preparation into, also can be applicable to the processing of stack gas or other industrial gaseous wastees, good treatment effect is also arranged.10, Zhuan Zhi processing power can design according to the treatment capacity of sewage, can satisfy from 10 ^-1～10 ⁵m ³The various needs of/d sewage disposal scale, adaptability is strong, and range of application will be very extensive.The present invention can use separately, but also plural serial stage uses, if cooperate other catalyzed oxidations, special chemical treatment or biochemical processing, can obtain splendid wastewater treatment efficiency.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Embodiment

As shown in Figure 1, a kind of sewage disposal device is equipped with wave duct 1 and adsorption tube 9 on knockout drum 3, nozzle 2 is housed in wave duct 1, at adsorption tube 9 sorbent material 10 is housed; Sump pump 4 water inlet pipes connect sewage valve 14, and rising pipe connects nozzle 2; The airduct of blower fan 8 connects wave duct 1; Sidewall at knockout drum 3 has water outlet 6, and outlet valve 15 is arranged on the water outlet 6; In the bottom of knockout drum 3 sewage draining exit 5 is arranged, wash water valve 17 is arranged on the sewage draining exit 5; Secondary treatment outlet 12 is arranged on knockout drum 3, the secondary treatment valve 13 in secondary treatment outlet 12, secondary treatment valve 13 connects sump pump 4 water inlet pipes; At adsorption tube 9 sorbent material charging opening 11 is arranged; Treatment agent charging opening 7 is arranged on knockout drum 3, charging valve 16 is arranged on treatment agent charging opening 7; Two parallel longitudinal dividing plates 18 are arranged in knockout drum 3.

Embodiment 1:

Dyeing waste water, 50t/d, COD 34368mg/L, TAN 35.4mg/L; Design gas phase flow 5m ³/ min, liquid phase flow 3m ³/ h, wave duct diameter 100mm, high 2000mmm, knockout drum diameter 1200mm, high 1600mm, adsorption column diameter 150mm, high 1200mm; Treating processes adds dioxide peroxide with intensifying treatment effect, and add-on is 170mg/L; Purifying waste water after the processing, COD 171.8mg/L, TAN 1.32mg/L.Clearance reaches 99.5% and 96.5% respectively.

Embodiment 2:

Hydrazine hydrate waste water contains a large amount of ammonium chlorides, yellow soda ash and a small amount of urea, 500t/d, COD 1122.8mg/L, TAN 8750mg/L; Design gas phase flow 25m ³/ min, liquid phase flow 30m ³/ h, wave duct diameter 240mm, high 3200mmm, knockout drum diameter 1600mm, high 2200mm, absorption column diameter 300mm, high 1800mm; Treating processes adds 25% sodium hydroxide solution, and to dissociate ammonia, add-on is 100mg/L; Purifying waste water after the processing, COD 52.6mg/L, TAN 264mg/L.Clearance reaches 95.3% and 97.0% respectively.

Claims

1, a kind of sewage disposal device is characterized in that: wave duct [1] and adsorption tube [9] are housed on knockout drum [3], nozzle [2] is housed in wave duct [1], at adsorption tube [9] sorbent material [10] is housed; Sump pump [4] water inlet pipe connects sewage valve [14], and rising pipe connects nozzle [2]; The airduct of blower fan [8] connects wave duct [1]; Sidewall at knockout drum [3] has water outlet [6], and outlet valve [15] is arranged on the water outlet [6]; In the bottom of knockout drum [3] sewage draining exit [5] is arranged, wash water valve [17] is arranged on the sewage draining exit [5].

2, sewage disposal device according to claim 1 is characterized in that: secondary treatment outlet [12] is arranged on knockout drum [3], and the secondary treatment valve [13] in secondary treatment outlet [12], secondary treatment valve [13] connects sump pump [4] water inlet pipe.

3, sewage disposal device according to claim 1 is characterized in that: at adsorption tube [9] sorbent material charging opening [11] is arranged.

4, sewage disposal device according to claim 1 is characterized in that: treatment agent charging opening [7] is arranged on knockout drum [3], charging valve [16] is arranged on treatment agent charging opening [7].

5, sewage disposal device according to claim 1 is characterized in that: two parallel longitudinal dividing plates [18] are arranged in knockout drum [3]