CN103553265A

CN103553265A - Module processing method for distributed slaughter wastewater

Info

Publication number: CN103553265A
Application number: CN201310472103.3A
Authority: CN
Inventors: 马兴冠; 姜伟; 于鹏飞; 张荣新; 傅金祥
Original assignee: Shenyang Jianzhu University
Current assignee: Shenyang Jianzhu University
Priority date: 2013-10-11
Filing date: 2013-10-11
Publication date: 2014-02-05
Anticipated expiration: 2033-10-11
Also published as: CN103553265B

Abstract

The invention relates to a module processing method for distributed slaughter wastewater. The method is particularly suitable for treatment of small distributed slaughter wastewater. Combined modules are selected and connected in series; an on-line monitor is connected at the front end of the combine module. The combined module comprises a materialized module-coagulation air flotation and drug hydrolysis; a biochemistry module-anaerobic biofilter and a constant water level batch activated sludge reactor, a deep processing module-reverse osmosis. Influent water quality can be detected according to on-line monitor, when a COD concentration is 500-1,500 mg/L, a gas-water ratio of the coagulation air flotation module is adjusted to 3:1; a temperature of the anaerobic biofilter is controlled at 20-25 DEG C; sludge load rate is selected at 0.10 kg/(kg.d); a temperature of CWSBR is controlled at 15-20 DEG C; and dissolved oxygen is controlled at 3-4 mg/L. The module processing method can not only improve effluent quality of the slaughter wastewater, is simple in management, can realize automation and modularization, is small in floor area and low in operation cost.

Description

A kind of distributing slaughterhouse wastewater resume module method

Technical field

The present invention relates to technical field of waste water processing, definite say a kind of distributing slaughterhouse wastewater resume module method, be specially adapted to the processing of small-sized distributing slaughterhouse wastewater.

Background technology

Along with the fast development of meat processing industry, in trade effluent, butcher and ratio that meat processing waste water is shared rises year by year, the generation of such waste water with butcher and the quantity of meat processing enterprise presents proportional relation.According to data, nationwide above meat in 2012 is butchered and meat product processing enterprise reaches 3696, and wherein animals and poultry slaughtering processing enterprise is not 2076, and meat product is processed as 1620, and two kinds of patterns of enterprises are than being 56:44.In addition, canned meat manufacturing concern is 91.Bank of animals and poultry slaughtering and meat, the above enterprise of process scale sum increases by 600 than last year, wherein butchers and increases by 277, and goods processing increases 323Jia， canned meat manufacturing concern and increases by 3.It is predicted, the coming five years China Meat Industry keeps 12% ~ 15% average annual growth rate development, illustrated that China's Meat Industry is fast-growth, also shown that China's meat processing industry wastewater discharge also increases year by year simultaneously, the advanced treatment of meat processing waste water is extremely urgent.

Most cities, nationwide have been realized the concentrated fixed point of livestock and poultry and have been massacred, but in the vast Rural areas of Liaohe River Basin, the middle-size and small-size meat processing of part enterprise gives full play to intrinsic advantage, for rural economic development injects fresh and alive vitality.But simultaneously in these small-sized distributing enterprise process of manufacture, produce a large amount of slaughterhouse wastewaters; slaughterhouse wastewater belongs to high concentrated organic wastewater; contain impurity, Pollutant levels are higher; intractability is larger; in addition Some Enterprises, because improvement lacks of capital and Rural Water Environment is protected to the thin of consciousness, is disposed of sewage without direct discharge up to standard, with runoff, flows into water body; rural area physical environment is threatened greatly, become one of factor of rural rivers lake water quality deterioration.Small-sized distributing meat processing wastewater treatment becomes China's water treatment field problem demanding prompt solution.

Summary of the invention

The object of this invention is to provide a kind of a kind of small-sized slaughterhouse wastewater standardized module composite processing system-distributing slaughterhouse wastewater resume module method, according to the water quality of small-sized distributing slaughterhouse wastewater, adopt three kinds of composite modules, i.e. materialization module, biochemical module, advanced treatment module.

1. materialization processing module, for the water quality characteristics of small-sized distributing slaughterhouse wastewater, adopts coagulation air-float work, medicament to be hydrolyzed to pre-processing module, reduces COD concentration, realizes the pretreated object of high concentrated organic wastewater.

2. biochemical treatment module, this module is selected anaerobic-aerobic combination process, anaerobic biofilter, permanent water level be activated sludge reactor (CWSBR) combination process intermittently, realize the biochemical treatment object of high concentrated organic wastewater de-carbon, denitrogenation and dephosphorization, effluent quality meets < < discharge standard of water pollutants for meat paching industry > > (GB-13457-92).

3. advanced treatment module, this module mainly adopt reverse osmosis method to biochemical treatment module water outlet carry out advanced treatment, guarantee that effluent quality meets < < urban sewage reutilization industry water standard > > standard.

Concrete technical scheme is as follows:, a kind of distributing slaughterhouse wastewater resume module method, it is characterized in that: according to slaughterhouse wastewater water quality characteristic and difficulty in treatment, the mutual series combination of Selection and Constitute module, at front end, connect online monitor, composite module comprises materialization module-coagulation air-float, medicament hydrolysis; Biochemical module-anaerobic biofilter, permanent water level be activated sludge reactor intermittently; Advanced treatment module-reverse osmosis, according to on-line monitoring device, measure influent quality, when the concentration of COD is during at 500 ~ 1500mg/L, the gas-water ratio of coagulation air-float module is adjusted to 3:1, the temperature of anaerobic filter is controlled at 20 ~ 25 ℃, pH is controlled at 6.8 ~ 7.2, and mud load rate is selected 0.10kg/ (kg.d); The temperature of CWSBR is controlled at 15 ~ 20 ℃, and dissolved oxygen is controlled at 3 ~ 4mg/L, when the concentration of COD is during at 4000mg/L, the gas-water ratio of coagulation air-float module is adjusted to 4:1, the temperature of anaerobic filter is controlled at 33 ~ 41 ℃, and pH is controlled at 6.0 ~ 7.6, and mud load rate is selected 0.60kg/; The temperature of CWSBR is controlled at 25 ~ 30 ℃, and dissolved oxygen is controlled at 4 ~ 5mg/L.

Adopt coagulation air-float and medicament hydrolysis combination as pre-processing module, gas-water ratio 3:1, hydrolysis medicament is ethanol, sodium carbonate, sodium hydroxide mass ratio 2:0.1:.

Adopt intermittently activated sludge reactor combination process of anaerobic biofilter and permanent water level, filtering velocity is 0.1 ~ 1m/h, and HRT is 16h.

Advantage of the present invention be three modules in slaughterhouse wastewater treating processes, according to the slaughterhouse wastewater of different quality scope, adjust processing parameter, realize optimal treatment effect.

The present invention can carry out active data processing and Classification and Identification to acquired results, determines a set ofly for different quality scope, to adopt the different standardization technique of controlling parameters, has simple to operately, and processing costs is low, and processing efficiency is high.

Accompanying drawing explanation

Fig. 1 is system interface chart of the present invention.

Fig. 2 is computer programme flow diagram of the present invention.

In Fig. 1,1 is on-line monitoring device, the 2nd, and materialization module, the 3rd, biochemical module, the 4th, advanced treatment module.

Embodiment

By the mutual series combination of composite module, adopt coagulation air-float and medicament hydrolysis combination as pre-processing module, gas-water ratio 3:1, hydrolysis medicament is ethanol, sodium carbonate, sodium hydroxide mass ratio 2:0.1:.

According to on-line monitoring device, measure influent quality, when the concentration of COD is during at 500 ~ 1500mg/L, the gas-water ratio of coagulation air-float module is adjusted to 3:1, and the temperature of anaerobic filter is controlled at 20 ~ 25 ℃, pH is controlled at 6.8 ~ 7.2, and mud load rate is selected 0.10kg/ (kg.d); The temperature of CWSBR is controlled at 15 ~ 20 ℃, and dissolved oxygen is controlled at 3 ~ 4mg/L.When the concentration of COD is during at 4000mg/L, the gas-water ratio of coagulation air-float module is adjusted to 4:1, and the temperature of anaerobic filter is controlled at 33 ~ 41 ℃, and pH is controlled at 6.0 ~ 7.6, and mud load rate is selected 0.60kg/ (kg.d); The temperature of CWSBR is controlled at 25 ~ 30 ℃, and dissolved oxygen is controlled at 4 ~ 5mg/L.

Claims

1. a distributing slaughterhouse wastewater resume module method, it is characterized in that: according to slaughterhouse wastewater water quality characteristic and difficulty in treatment, the mutual series combination of Selection and Constitute module, connects online monitor at front end, and composite module comprises materialization module-coagulation air-float, medicament hydrolysis; Biochemical module-anaerobic biofilter, permanent water level be activated sludge reactor intermittently; Advanced treatment module-reverse osmosis, according to on-line monitoring device, measure influent quality, when the concentration of COD is during at 500 ~ 1500mg/L, the gas-water ratio of coagulation air-float module is adjusted to 3:1, the temperature of anaerobic filter is controlled at 20 ~ 25 ℃, pH is controlled at 6.8 ~ 7.2, and mud load rate is selected 0.10kg/ (kg.d); The temperature of CWSBR is controlled at 15 ~ 20 ℃, and dissolved oxygen is controlled at 3 ~ 4mg/L, when the concentration of COD is during at 4000mg/L, the gas-water ratio of coagulation air-float module is adjusted to 4:1, the temperature of anaerobic filter is controlled at 33 ~ 41 ℃, and pH is controlled at 6.0 ~ 7.6, and mud load rate is selected 0.60kg/; The temperature of CWSBR is controlled at 25 ~ 30 ℃, and dissolved oxygen is controlled at 4 ~ 5mg/L.

2. a kind of distributing slaughterhouse wastewater resume module method according to claim 1, it is characterized in that: adopt coagulation air-float and medicament hydrolysis combination as pre-processing module, gas-water ratio 3:1, hydrolysis medicament is ethanol, sodium carbonate, sodium hydroxide mass ratio 2:0.1:.

3. a kind of distributing slaughterhouse wastewater resume module method according to claim 1, is characterized in that: adopt anaerobic biofilter and permanent water level activated sludge reactor combination process at intermittence, filtering velocity is 0.1 ~ 1m/h, and HRT is 16h.