CN104787813B - Converting waste water oiliness object becomes the processing method of non-oily dry products - Google Patents
Converting waste water oiliness object becomes the processing method of non-oily dry products Download PDFInfo
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- CN104787813B CN104787813B CN201510060033.XA CN201510060033A CN104787813B CN 104787813 B CN104787813 B CN 104787813B CN 201510060033 A CN201510060033 A CN 201510060033A CN 104787813 B CN104787813 B CN 104787813B
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- waste water
- oiliness
- oily
- product
- solid
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- 239000002351 wastewater Substances 0.000 title claims abstract description 91
- 238000003672 processing method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims description 52
- 239000012141 concentrate Substances 0.000 claims description 12
- 240000008042 Zea mays Species 0.000 claims description 11
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 11
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 11
- 235000005822 corn Nutrition 0.000 claims description 11
- 240000007594 Oryza sativa Species 0.000 claims description 10
- 235000007164 Oryza sativa Nutrition 0.000 claims description 10
- 235000009566 rice Nutrition 0.000 claims description 10
- 239000010902 straw Substances 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 6
- 244000020551 Helianthus annuus Species 0.000 claims description 6
- 235000003222 Helianthus annuus Nutrition 0.000 claims description 6
- 240000005979 Hordeum vulgare Species 0.000 claims description 6
- 235000007340 Hordeum vulgare Nutrition 0.000 claims description 6
- 235000012054 meals Nutrition 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 235000013372 meat Nutrition 0.000 claims description 5
- 235000010469 Glycine max Nutrition 0.000 claims description 4
- 238000007602 hot air drying Methods 0.000 claims description 4
- 244000068988 Glycine max Species 0.000 claims description 3
- 235000019764 Soybean Meal Nutrition 0.000 claims description 3
- 108010073771 Soybean Proteins Proteins 0.000 claims description 3
- 244000269722 Thea sinensis Species 0.000 claims description 3
- 239000002374 bone meal Substances 0.000 claims description 3
- 229940036811 bone meal Drugs 0.000 claims description 3
- 235000009508 confectionery Nutrition 0.000 claims description 3
- -1 digested tankage Substances 0.000 claims description 3
- 239000010808 liquid waste Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 239000004455 soybean meal Substances 0.000 claims description 3
- 235000019710 soybean protein Nutrition 0.000 claims description 3
- 235000015099 wheat brans Nutrition 0.000 claims description 3
- 239000000047 product Substances 0.000 abstract description 72
- 238000012545 processing Methods 0.000 abstract description 32
- 239000012265 solid product Substances 0.000 abstract description 15
- 241001465754 Metazoa Species 0.000 abstract description 9
- 235000013305 food Nutrition 0.000 abstract description 9
- 241000283690 Bos taurus Species 0.000 abstract description 6
- 235000013336 milk Nutrition 0.000 abstract description 6
- 239000008267 milk Substances 0.000 abstract description 6
- 210000004080 milk Anatomy 0.000 abstract description 6
- 239000010841 municipal wastewater Substances 0.000 abstract description 5
- 239000010842 industrial wastewater Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 230000032258 transport Effects 0.000 abstract description 2
- 238000001311 chemical methods and process Methods 0.000 abstract 1
- 239000003925 fat Substances 0.000 description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- 239000003921 oil Substances 0.000 description 19
- 235000019198 oils Nutrition 0.000 description 19
- 238000010438 heat treatment Methods 0.000 description 17
- 239000000203 mixture Substances 0.000 description 17
- 239000007788 liquid Substances 0.000 description 14
- 235000021588 free fatty acids Nutrition 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 235000018102 proteins Nutrition 0.000 description 12
- 108090000623 proteins and genes Proteins 0.000 description 12
- 102000004169 proteins and genes Human genes 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 9
- 239000011575 calcium Substances 0.000 description 9
- 229910052791 calcium Inorganic materials 0.000 description 9
- 235000014113 dietary fatty acids Nutrition 0.000 description 9
- 239000006227 byproduct Substances 0.000 description 8
- 238000001035 drying Methods 0.000 description 8
- 239000000194 fatty acid Substances 0.000 description 8
- 229930195729 fatty acid Natural products 0.000 description 8
- 150000004665 fatty acids Chemical class 0.000 description 7
- 239000004519 grease Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 6
- 238000005188 flotation Methods 0.000 description 6
- 239000011777 magnesium Substances 0.000 description 6
- 229910052749 magnesium Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000003307 slaughter Methods 0.000 description 6
- 239000010802 sludge Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 238000004065 wastewater treatment Methods 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 5
- 235000011116 calcium hydroxide Nutrition 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 241000287828 Gallus gallus Species 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 241000209140 Triticum Species 0.000 description 3
- 235000021307 Triticum Nutrition 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 210000002784 stomach Anatomy 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 150000001720 carbohydrates Chemical class 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 239000003895 organic fertilizer Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 2
- 229940007718 zinc hydroxide Drugs 0.000 description 2
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000931143 Gleditsia sinensis Species 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013861 fat-free Nutrition 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000021590 normal diet Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to food factories, the processing of municipal wastewater and industrial wastewater oiliness object, the processing method that especially a kind of conversion waste water oiliness object becomes non-oily dry products, it is characterized by: waste water oiliness object is mixed with hydroxide or oxide, changes oiliness as non-oily and control temperature and physical aspect and the moist raw material of oiliness is become non-oleaginous dry solid product.The present invention is that oiliness is become non-oily using a kind of chemical process and moist raw material is become dry solid product, and product can be graininess, fine-powdered or bulk, and dry solid product is easy to be stored, and transports and uses.Graininess or fine-powdered product can be applied to feed and other industry.Product can be mixed together and be cooled into the bulk product from feeding material applied to animals such as milk cows with other feedstuffs.
Description
Technical field
The present invention relates to food factory, the processing and processing of municipal wastewater and industrial wastewater are a kind of waste water oiliness object
(greasy filth, sludge or oiliness byproduct) changes oiliness after chemical treatment becomes non-oily and control temperature and physical aspect
Moist waste water oiliness object is become the processing method of dry solid product.The moist raw material of oiliness and viscosity is become non-oily
After inviscid dry products, product is not easy again corrupt, can be used as stable product and is applied to feed and other works
Industry.The present invention can solve the problem of emission after wastewater treatment, environmental and reduce production cost.
Background technique
Food factory and city are typically necessary processing waste water, and many food processing factories carry out cleaning food original using a large amount of water
Material, as animal (pig, ox and poultry) slaughter processing factory.Have in the waste water of washing it is very high fat, protein and it is other come it is reversal
The organic substance of product.Can also be generated in the treatment process of municipal wastewater (especially sanitary wastewater) fat, protein and it is other come
From the organic substance byproduct of daily life.Fat has oiliness, and moist organic substance byproduct generally also has viscosity.Water
Wash also includes the oiliness organic matter byproduct generated during extracting related substances with water, such as the glue in Animal Skin (or bone)
The oiliness organic by-products (mainly grease and water etc.) that body substance generates during being extracted.(example in the processing of industrial wastewater
Such as petroleum and leather), organic matter is a very big part.If these oiliness organic matter byproducts (as fat, protein or
Person's carbohydrate) it flows into sewer or river and can cause the biological organism of high-content, to the water treatment band of sewer
It is next difficult, and cause to pollute.
In order to reduce the pollution of water quality, food processing factory is usually used to cross grid, sedimentation basin, conditioning tank, air flotation machine, water
Acidification pool, biochemical aerobic and anoxic treatment pond are solved, supernatant enters back into the processing such as sterilization pool, and water outlet reaches discharge standard.At this
In a little wastewater treatments, the waste water oiliness object of various oiliness can be all generated.Such as in these processing ponds, fatty specific gravity compares water
Gently, not soluble in water, can climb up on top of the water upper formation waste water oiliness object, also water content.Organic matter (such as can also polymerize with flocculant
Aluminium chloride and polyacrylamide) combine after generate sediment or flocculate, specific gravity can be than water weight or lighter than water.Air flotation machine
It is a kind of main equipment to handle waste water, air flotation machine can be used to so that the organic matters such as fat and non-toxic polymer
It combines and is formed on a kind of waste water oiliness object climbs up on top of the water with the small gas explosion of air, it then can be this wastewater oil using mechanical means
Property object (also known as air bearing waste water greasy filth) is separated with water.Organic substance is removed from waste water, it is possible to reduce the post-processing of waste water.Waste water
Treated, and various waste water oiliness objects generally have oiliness, also toughness, especially to slaughtering of animals processing factory.Waste water oiliness object
The moisture content of about 70-90% can generally be contained.These waste water oiliness objects or greasy filth are difficult to be processed, and heating, drying cannot be at
For solid product, grease in waste water oiliness object is heated to will become liquid, and oiliness and viscosity are two big difficult.Waste water oiliness object
(especially containing albumen, carbohydrate, fat and moisture content) is easy to corruption, to environmentally friendly harmful.Lot of domestic and international waste water at present
Waste water oiliness object is thrown into the place far from city by treatment plant, the fat being rich in, and the composition of albumen and organic matter also can be unrestrained
Take, odorous, the grease of oiliness is difficult to be absorbed by soil, will cause soil grease saturation, generates possible permanent damage to farmland.No
But the substance of these fat and protein is wasted, and causes environmental pollution.Another method is compost, is had very serious
Smell, the time, which has been grown, can generate heavier smell, and the value of its organic fertilizer is also relatively low.
For the waste water oiliness object of the air flotation machine of slaughtering of animals processing factory, it can generally contain the moisture content of about 70-90%
Or solid accounts for about 30-10%(with solid weight ratio meter), fat can generally contain protein and account for about in this solid
10-50% and fat account for about 5-70%(with solid weight ratio meter).For the upper layer greasy filth of sedimentation basin and conditioning tank, generally may be used
Account for about 40-10% to contain moisture content or the solid of about 60-90%, fat accounts for about 40-95% (with solid-state in this solid
Object weight ratio meter).The waste water oiliness object come from the waste water of restaurant food is fatty also relatively more, can generally contain about 50-90%
Moisture content or solid account for about 50-10%, fat accounts for about 40-95%(with solid weight ratio meter in this solid).These
Fat and protein can be used as the feedstuff of animal, fat and protein generally account for about in this solid 50-90%(with
Solid weight ratio meter), there is valuable nutrition, and can be processed in time, corruption will not be generated again, it will not
Serious smell is generated again.The waste water oiliness object or fat that generate in municipal wastewater and During Industrial Wastewater Treatment Process can be used
In the application of non-feed.
Start that air floatation machine waste water oiliness object is heated (such as 70-100 DEG C) using heating means now with some companies,
Fat therein becomes fluid oil, fuel-displaced (it is dense to become its liquid with three-phase centrifuge or liquid-solid separate with liquid-liquid centrifuge
Contracting object, also known as brown oil), waste water and moist solid (its solids concentration).But the cost phase of this processing method
It is relatively high for the price of product, there is underlying cause: (1) the price ratio of three-phase centrifuge (or liquid-solid and liquid-liquid centrifuge)
It is more expensive；(2) a large amount of steam is needed to heat；(3) moist solid needs drying machine to come drying, and the price of solid
It is relatively low；(4) fat mass separated is poor, containing high free fatty acid, at normal temperature generally in semisolid (and one
Kind greasy filth), it generally needs heat treatment to become liquid before the use, then could mix or be added with other raw materials
Work needs more energy to heat, very inconvenient, and the selling price of this fatty raw material is significantly less than other fat and produces
Product.
Processing and processing for waste water oiliness object or waste have carried out many scientific researches both at home and abroad and have produced
Patented technology.Chinese patent CN103086767B(2014) invented a processing technology municipal sludge, chicken manure,
Mushroom slag and plant ash prepare organic compound fertilizer and its utilize the method for domestic sludge production.The municipal sludge is
Refer to the dirt discharged after municipal sewage plant or large-scale food plant wastewater processing, is conducive to promote municipal sludge utilization
Rate is environmental and reduces production cost.United States Patent (USP) 8895689(2014) processing technology has been invented, with waste oil (packet
Include brown oil) it is reacted with aromatic series polycarboxylic acids etc. to prepare alkyd resin.United States Patent (USP) 8864868(2014) invent one
Processing technology, increased with alkali greasy filth or biosolids to pH value to 10 or it is higher become slurry, generate ammonia it is horizontal extremely
1,000 ppm, acid adding to pH value to 7 reheat drying to 90% or more (moisture content is below 10%) and are used as organic fertilizer.
United States Patent (USP) 8003833(2011) processing technology has been invented, debirs are converted with high temperature and high pressure becomes available
Product include grease, the product of fuel and solid carbon.High temperature and high pressure needs very high cost.Australian patent application
A processing technology 2008243273(2008) is invented, the method for microbe fermentation handles the useless of municipal wastewater
Object.United States Patent (USP) 7446215(2008) processing technology has been invented, by adding alkali some liquid oils (including vegetable oil
Gleditsia sinensis) become solid product.Australian patent application 2006001054 (2006) has invented a processing technology, application
Heating while puffing machine becomes a kind of feed product to process air floatation machine waste water oiliness object and cereal together.New zealand patent 504619
(2003) have invented a processing technology, remove moisture content from waste water oiliness object using centrifugation control.United States Patent (USP) 6229031
(2001) have invented a processing technology, and calcium oxide and water is added in fatty acid, is heated to 150oC generates fatty acid
Calcium, fatty acid calcium have the function of the fat of stomach excessively of milk cow.United States Patent (USP) 5514388(1996) invent a processing skill
Art adjusts pH to 11, then adjusts pH to 3-5, is adjusted using albumen and pH to contain some greases.
Summary of the invention
The purpose of the present invention is to provide the processing that a kind of conversion waste water oiliness object becomes non-oily non-sticky dry products
Oily waste (greasy filth, sludge or byproduct) after wastewater treatment is processed into non-oily inviscid product by method, and
And be solid dry products, it solves waste water oily waste and processes this technical problem, be that food processing factory and city are useless
Water process provides a kind of processing method of waste water oiliness object.
To achieve the above object, technical scheme is as follows:
The processing method that a kind of conversion waste water oiliness object becomes non-oily dry products, it is characterised in that: by waste water oiliness
Object is mixed with hydroxide or oxide, is changed oiliness and is become non-oily and control temperature and physical aspect the humidity of oiliness
Object becomes non-oleaginous dry solid product.Hydroxide or oxide can be food-grade, feed grade, technical grade or industry
Grade, purposes and price depending on product.
The processing method that the conversion waste water oiliness object becomes non-oily dry products, it is characterised in that: described is useless
Waste water oiliness object or its concentrate of the water oiliness object from purification tank for liquid waste or air floatation machine.
The processing method that the conversion waste water oiliness object becomes non-oily dry products, it is characterised in that: the hydrogen
Oxide is one of calcium hydroxide, magnesium hydroxide, zinc hydroxide, sodium hydroxide or a variety of；The oxide is oxidation
One of calcium, magnesia, zinc oxide are a variety of；The solid weight of the waste water oiliness object and hydroxide or oxide
Ratio is 100: being not higher than 25, preferably 100:2-20.
The processing method that the conversion waste water oiliness object becomes non-oily dry products, it is characterised in that: described is useless
Water oiliness object is moist waste water oiliness object, and the waste water oiliness object and hydroxide or oxide of the humidity are mixed and are heated to
80 DEG C or more the variations for causing physical aspect to become slurry by liquid, are subsequently cooled to 60oC or less becomes solid product, this is solid
State product is graininess, fine-powdered or bulk.
The processing method that the conversion waste water oiliness object becomes non-oily dry products, it is characterised in that: the slurry
The mixture of state is mixed with feedstuff, is subsequently cooled to 60oC or less becomes solid product.
The processing method that the conversion waste water oiliness object becomes non-oily dry products, it is characterised in that: the block
Shape products application feeds feed product in animal certainly.
The processing method that the conversion waste water oiliness object becomes non-oily dry products, it is characterised in that: described is useless
Water oiliness object is mixed with hydroxide or hopcalite with solid-state feed raw material, and physical aspect is by the wastewater oil of viscosity
Property object become moist granular product, moist product is then dried using hot-air drying equipment becomes non-oily non-stick
The dry products of property.
The processing method that the conversion waste water oiliness object becomes non-oily dry products, it is characterised in that: described is useless
The mixed proportion of the solid weight of water oiliness object and hydroxide or oxide and solid-state feed raw material is 100: it is not higher than 25:
Not higher than 200, preferably 100:2-20:20-150.
The processing method that the conversion waste water oiliness object becomes non-oily dry products, it is characterised in that: described consolidates
State feedstuff is Xing biology, wheat, straw, the wheat bran, jade of the Soybean Meal of graininess or fine-powdered, soybean skin, soybean protein
Rice, the corn dregs of rice, cornstalk, corn derivatives, sweet tea rice bran, ensilage, oat, oat straw, barley, barley straw, digested tankage,
One of bone meal, meat meal tankage, animal blood, the sunflower dregs of rice, sunflower stalk, cotton seed, Cotton Stalk are a variety of.
The processing method that the conversion waste water oiliness object becomes non-oily dry products, it is characterised in that: described is non-
The dry products of oiliness are graininess or fine-powdered.
We have found that the waste water oiliness object or oiliness byproduct after wastewater treatment all contain fat, there is oiliness.It is useless
The upper layer greasy filth of water treating pond (such as sedimentation basin and conditioning tank) is fatty to account for about 40-95% (in terms of solid).Processing pond
Upper layer greasy filth can pass through heating and acid-base accommodation, and viscosity is reduced, and after static, oil can be floated to above and is layered, or centrifugation
Oil can be separated afterwards, containing more fat, account for about 70-100%(with solid weight ratio meter), it is waste water oiliness object
Concentrate (also known as brown oil).The fatty 5-70%(that accounts for about of air floatation machine waste water oiliness object is with solid weight ratio meter), air floatation machine
Waste water oiliness object can be squeezed press and squeeze out moisture content as its concentrate, so that its solids is improved from general 5-20% to 15-
50%, it is possible to reduce the cost of moisture content is removed by heating.Before extrusion in order to reduce oiliness, suitable oxide can also be added
Or hydroxide.The adjusting of pH value is also a kind of method, and waste water oiliness object can be affected.Air floatation machine waste water oiliness object passes through
Grease (its liquefied concentrate) after heating and centrifuge separation accounts for about 70-100%(containing more fat with solid weight ratio
Meter).Moist solid (its solids concentration) can also have oiliness after centrifuge separation, and general fatty 2-25%(is with solid
Weight ratio meter).When fat content has physics oil in 10% or more (with solid weight ratio meter), dry solid product or raw material
Property.When fatty amount is relatively low, even lower than 10%(is with solid weight ratio meter), liquid or moist product also have physics oil
Property, fat is not soluble in water, floats on the surface, and oiliness is presented.Waste water oiliness object can generally be squeezed press and squeeze out moisture content as it
Concentrate reduces the cost that moisture content is removed by heating.Waste water oiliness object, which can also be heated with vacuum, to be concentrated, and moisture content is removed,
As its concentrate, the exhaust heat-energy of special heating equipment can be used to the purpose of concentration.Waste water oiliness object (or its concentration
Object) fat by having comparable free fatty acid, it is big that 20-90%(being accounted for about in terms of fat composition in wastewater treatment and placement process
Most greasy filth are in terms of fat composition containing free fatty acid in 30-80%), with other normal diet greases (containing free fatty acid in 5-
10% or less) quite different.General fat molecule does not have hydrophily, but free fatty acid (RCOO-) has centainly hydrophilic
Property.Free fatty acid can be with hydroxide (such as hydroxide calcium, hydroxide magnesium, zinc hydroxide or sodium hydroxide) or oxygen
Compound (such as oxide calcium, zinc oxide or magnesia) reaction generates fatty acid salt, without oiliness.Before soap manufacture, rouge
Fat molecule (or fat and free fatty acid mixture) is generally all hydrolyzed into as free fatty acid, then manufactures soap again,
Refer here to the reaction step and cost of hydrolysis.
We have found that free fatty acid in waste water oiliness object (or its concentrate) and hydroxide or oxide can be with
Reaction generates non-oleaginous fatty acid calcium (or magnesium, zinc, iron or sodium), while not showing the physics oiliness of general common fats also,
Become non-oleaginous dry products after heat drying, solves the technical issues of waste water oiliness object processing.Its reason may be to work as
When free fatty acid is reacted with hydroxide or oxide, while common general fat molecule (glycerol can also be contained
Rouge), keep the non-oily of physics.When waste water oiliness object is fatty, protein, other organic substances and moisture content, in heating process
At first middle physical aspect is liquid (moisture content and grease), moisture content is gradually removed, and viscosity increases, free fatty acid and hydroxide
Or the fatty acid calcium (or magnesium, zinc, iron or sodium) that oxide reaction generates also causes viscosity to increase, protein and other organic substances
Presence make viscosity excessively high.When waste water oiliness object contains high-fat (such as 70-100% is with solid weight ratio meter), albumen
The content of matter, moisture content and other organic substances is very low.During heating, moisture content is removed, protein and other non-fat
Organic substance is less big for the increase of viscosity, and liquid aliphatic viscosity is very low.Although free fatty acid and hydroxide or oxygen
The fatty acid calcium (or magnesium, zinc, iron or sodium) that compound reaction generates can cause viscosity to increase, but still be existed by heating its viscosity
It can be with opereating specification.
Hydroxide is calcium hydroxide, magnesium, zinc or is received, and oxide is calcium oxide, magnesium or zinc or their mixture,
The ratio of the amount and waste water oiliness object of hydroxide or oxide is less than 25%(with solid weight ratio meter), with 2-15% be than
Preferable range.For the solids concentration of waste water oiliness object, the ratio of hydroxide or oxide can fewer such as 1-
5%(is with solid weight ratio meter).Moist waste water oiliness object and hydroxide or oxide are mixed and are heated to 80 DEG C or more
Physical aspect can be caused to gradually become the variation of slurry by liquid, the increase of viscosity is from free fatty acid and hydroxide or oxygen
The fatty acid calcium (magnesium, zinc or sodium) that compound reaction generates, then cool to room temperature (or 60oC or less) become rigid solid-state
Product.Solid product can be graininess, fine-powdered or bulk.The solid product has brittleness, it is easy to be crushed into
It is granular, fine-powdered or their product mix.If a small amount of lubricant (such as ratio of 0.1-2%) is added (with solid-state
Object weight ratio meter), there can be better mobility, lubricant can be the general feeds raw material such as soy meal of powdery, corn
Powder, flour, Paris white or other.
Solid fat product can be applied the raw material of general feeds or polymeric articles, can also be applied to milk cow
Cross stomach fat, help the more milk of Cow product.It can be mixed together with other feedstuffs before the formation of bulk product
It closes and is cooled into applied to animals such as milk cows from feed product is fed, this blocky hello feed product certainly can bear relatively high
Temperature and wet weather, also have opposite hardness, have apparent advantage from feeding feed products than other blocky.Processing
In viscosity with fat content and processing temperature it is related, can be added other raw materials be mixed together and be cooled into mixing produce
Product.After plastics, which are added into, to be mixed together and be cooled into product mix, with hardness and toughness, brittleness is reduced, mixing
The performance of product makes up the deficiency of the two, can be applied to some polymerization produce between plastics and solid fat product
The manufacture of product.Plastics generally have toughness, and the solid fat product in the present invention enbrittles and hardness.
For waste water oiliness object perhaps its concentrate especially fatty not high waste water oiliness object or its concentrate,
Hydroxide or oxide and solid matter is added, is stirred, mixture can be semisolid or liquid.Temperature is one
Influence factor, when heating, can be liquid, usually semisolid when room temperature.Waste water oiliness object is very soft, there is oiliness and viscosity, and
It will become liquid after heating.Hydroxide or oxide are gradually reduced the oiliness of waste water oiliness object, and solid matter can be with
It is graininess or flour, provide has certain hardness and mobility together with waste water oiliness object.Solid matter is
Granular or fine-powdered Soybean Meal, soybean skin, the Xing biology of soybean protein, wheat, straw, wheat bran, corn, the corn dregs of rice, corn
Stalk, corn derivatives, sweet tea rice bran, ensilage, oat, oat straw, barley, barley straw, digested tankage, bone meal, meat meal tankage move
Object blood, the sunflower dregs of rice, sunflower stalk, cotton seed, Cotton Stalk, feedstuff or their mixture.Raw material most commonly is big
Dregs of beans, meat meal tankage, wheat, corn or their mixture.Waste water oiliness object and hydroxide or oxide and solid-state feed raw material
Mixed proportion be 100: be not higher than 25: not higher than 200(with solid weight ratio meter), be most often 100:2-20:20-150.
In this processing, the purpose that hydroxide or oxide is added is to change the oiliness of waste water oiliness object as non-oil
Property, and be added excessive hydroxide or oxide can generate ammonia from albumen and increase pH, therefore guarantee to change oiliness at
For hydroxide or oxide is added less as far as possible in non-oleaginous situation.For the smell of waste water oiliness object, a small amount of mistake is added
Oxide, hydrogen peroxide or eliminating smell agent can make wastewater oil object or greasy filth be reduced smell problem, and deep color may
It can shoal.Waste water oiliness object is mixed with hydroxide or hopcalite with solid-state feed raw material, and physical aspect is by gluing
Soft greasy filth becomes moist granular product, and moist product is then dried using hot-air drying equipment becomes non-oil
The inviscid dry products of property.If the temperature of the too high such as product of the temperature of drying equipment reaches 130oC or more, then producing
Product, which can soften, to become sticky, and can also adhere to above drying equipment.Hot-air drying equipment is relatively suitble to the drying of this kind of product, dry to produce
Then product are finally cooled to common room temperature.Dry products can contain protein 5-65% and fat 50-1%(with solid weight
Amount is than meter), dry products can be graininess or fine-powdered.Dry product is easy to be stored, and uses and transports.
Specific embodiment
Embodiment 1:
The greasy filth of air flotation machine from ox slaughter factory is squeezed out the weight that moisture content makes the solids of waste water greasy filth
Amount is that humidity glues soft greasy filth than improving to 30%.333 grams of greasy filth concentrates are mixed with 13 grams of calcium oxide and 100 grams of meat meal tankages,
Their mixed proportion is 100:13:100(with solid weight ratio meter), mixture is moist graininess, is heated to 100oC, moisture content are gradually removed to the granular product that mixture becomes dry.Its product Analysis on Nutritious Ingredient of Fattening is as follows: fat
30.5%, protein 34.5% and moisture content 1.0%(are with solid weight ratio meter).Its product surface does not have any physics oiliness.
Embodiment 2:
The greasy filth concentrate of 200 grams of purification tanks for liquid waste from chicken slaughter factory, 22 grams of calcium hydroxides of heating and mixing,
Their mixed proportion is 100:11(with solid weight ratio meter).Then 120 DEG C or more are stirred and are heated to, physics shape
State is gradually become the variation of slurry by the mixture of fluid oil and calcium hydroxide, then cools to room temperature to form solid product, Gu
State product is very crisp, and a semi-solid products maintainance block shape, the other half is crushed into the product of fine granularity.The product of fine granularity
Analysis of components it is as follows: fat 83.5%, moisture content 2.2%, ash 7.5%(is with solid weight ratio meter).Milk cow crosses stomach fat ratio
Example is 88.7%.Its product surface does not have any physics oiliness.
Embodiment 3:
100 grams of air flotation machine centrifuged greases of waste water oiliness object (brown oil) from chicken slaughter factory are added 3
35% hydrogen peroxide of milliliter, stirring and heating, smell reduces and lighter.Mix 11 grams of calcium hydroxides, the mixing with brown oil
Ratio is 100:11(with solid weight ratio meter).120 DEG C or more are then heated to, physical aspect is by fluid oil and hydrogen-oxygen
The mixture for changing calcium gradually becomes slurry, and viscosity gradually increases, but it is still easier to be stirred.Seldom permitted sample to be taken
It tests out, is cooled to room temperature to form brittleness solid product.100 grams of plastics (fritter) are added, heating stirring becomes uniform mixing
Then object is paved into plate-like and is cooled to room temperature.The plate-like product surface is smooth, has hardness and toughness, brittleness and implementation
Blocky solid fat product in example 2 is not dissolved in water, product surface does not have any physics oiliness than reducing.
Claims (5)
1. the processing method that a kind of conversion waste water oiliness object becomes non-oily non-sticky dry products, it is characterised in that: by waste water
Oiliness object is mixed with hydroxide or oxide and solid-state feed raw material, and changing oiliness becomes non-oily and control temperature and object
Form is managed, moist product is then dried using hot-air drying equipment becomes non-oily inviscid dry products.
2. the processing method that conversion waste water oiliness object according to claim 1 becomes non-oily non-sticky dry products,
It is characterized in that: waste water oiliness object or its concentrate of the waste water oiliness object from purification tank for liquid waste or air floatation machine.
3. the processing method that conversion waste water oiliness object according to claim 1 becomes non-oily non-sticky dry products,
It is characterized in that: the mixing ratio of the solid weight of the waste water oiliness object and hydroxide or oxide and solid-state feed raw material
Example is 100:2-20:20-150.
4. the processing method that conversion waste water oiliness object according to claim 3 becomes non-oily non-sticky dry products,
Be characterized in that: the solid-state feed raw material is that Soybean Meal, soybean skin, the Xing of soybean protein of graininess or fine-powdered are raw
Object, wheat bran, corn, the corn dregs of rice, cornstalk, corn derivatives, sweet tea rice bran, ensilage, oat, oat straw, barley, barley
One of straw, digested tankage, bone meal, meat meal tankage, the sunflower dregs of rice, sunflower stalk, cotton seed, Cotton Stalk are a variety of.
5. the processing method that conversion waste water oiliness object according to claim 1 becomes non-oily non-sticky dry products,
Be characterized in that: non-oily inviscid dry products are graininess or fine-powdered.
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