CN101628835A - Method of utilizing monosodium glutamate waste liquid to prepare nutrient substrate additive for greening - Google Patents
Method of utilizing monosodium glutamate waste liquid to prepare nutrient substrate additive for greening Download PDFInfo
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- CN101628835A CN101628835A CN200910109597A CN200910109597A CN101628835A CN 101628835 A CN101628835 A CN 101628835A CN 200910109597 A CN200910109597 A CN 200910109597A CN 200910109597 A CN200910109597 A CN 200910109597A CN 101628835 A CN101628835 A CN 101628835A
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Abstract
The invention provides a preparation and use method of a nutrient substrate additive suitable for greening side road slopes, bare mountain bodies (quarries and mining areas) and urban green land, in particular to a functional liquid material which is prepared by evaporating and concentrating waste liquid discharged by monosodium glutamate factories and adding a chelating agent and sulphate (or oxide) for a chelation reaction and has the functions of supplying and preserving fertilizer and improving soil. The material as the nutrient substrate additive not only can find a new path for the resource utilization of monosodium glutamate waste liquid, but also can provide a new solution scheme for environment greening, in particular to the problems of vegetation degeneration, and the like, which are prone to occur because soil fertility is hard to endure and balance during the greening under the adverse conditions of soil depletion, nutrient stress, moisture stress, and the like, thereby having wide application prospect.
Description
Technical field
The present invention relates to a kind of monosodium glutamate waste liquid resource utilization method, more particularly, relate to a kind of method of utilizing monosodium glutamate waste liquid to prepare nutrient substrate additive for greening.
Background technology
China is maximum in the world glutamate production and country of consumption, and annual production is about half of world wide production.Current, China's glutamate production is many to be raw material with grain, passes through fermentative Production.1 ton of monosodium glutamate of every production needs 4 tons in rice (or starch 3 tons), 0.61～0.74 ton (nitrogen content is 280～340kg) to urea, sulfuric acid 140～150kg, it is external to remove the carbon dioxide gas that partly becomes L-glutamic acid and effusion, major part is discharged with mother liquor with the form of tropina, residual sugar, amino acid, ammonium salt, organic acid and acid group, produces a large amount of waste liquids.1 ton of monosodium glutamate of general every production has 25 tons of waste liquids to discharge approximately.
Monosodium glutamate waste liquid is a kind of organic waste water of high density, has low pH, high COD and BOD, high SO
4 2-, high thalline content and the big characteristics of quantity discharged, its main component and content see Table 1.
Table 1
This high concentrated organic wastewater not exclusively enters water body as if not treated or processing, can cause that the water body dissolved oxygen reduces, and causes body eutrophication, harm aquaculture and hydrocoles.Must handle through denitrogenation, desalination, decolouring and accent pH etc. and could discharge after up to standard.But because the high COD and the BOD of monosodium glutamate waste liquid, characteristics such as high ammonia nitrogen, strongly-acid cause being difficult to thoroughly solve the handling problem of its waste liquid, enterprise has been absorbed in do not handle not up to standard, handles the predicament of no benefit even loss of capital, be one of difficult problem of puzzlement China glutamate production enterprise always.
At present, for the processing of monosodium glutamate waste liquid, several modes below main employing the: (1) materialization technology: as high speed centrifugation, thermal precipitation, flocculation sediment, absorption, flocculation-absorption, ion-exchange etc.; (2) biofermentation technique: yeast fermentation, Bacillus thuringiensis fermentation and solid-fermented technique etc.; (3) anaerobe technology: as technology such as anaerobism contact, up-flow anaerobic sludge blanket, anaerobe films.Though these processing modes have been subdued the pollutant load of waste liquid to a certain extent, alleviated environmental stress, but also all exist some technological deficiencies or drawback more or less, show: (1) is too high because of the monosodium glutamate waste liquid pollution load, the treatment effect of above-mentioned treatment system and efficient often do not reach corresponding requirement, thereby occur to handle not thoroughly, draining still contains some can produce the material of pressure to environment, also can show the pollution to environment after the long-term accumulation; (2) some method energy expenditure is big, though can obtain some by products in the treating processes, the value of these by products is not often offset processing cost; (3) though biofermentation technique is a treatment process of saving the energy, but the extraction of fermentation after product is a new difficult problem.So,, all fail just truly the target that now environmental pollution improvement or resource recycle fully although the present situation technology can be subdued pollutent to a certain extent or be reclaimed useful matter.For this reason, seek the complete processing mode of the also thorough recycling of a kind of monosodium glutamate waste liquid of can dissolving in a large number, non-secondary pollution, be undoubtedly urgent and important for a large amount of monosodium glutamate waste liquids finds suitable whereabouts and home to return to.
Contain rich in protein based on monosodium glutamate waste liquid, amino acid, reducing sugar, thalline and N, P, K, nutritive ingredients such as trace element, it itself is valuable plant nutrition resource, has the good effect of improving the soil again, the present invention is developed as a kind of nutrient substrate additive with monosodium glutamate waste liquid, be used for road slope, exposed massif (stone quarry, the mine) greening and urban green space, can find new outlet for its recycling, can be environmental greening again, especially at soil depletion, nutrient stress, mal-conditions such as water stress are afforested problems such as very easily occurring vegetation degeneration because the fertility supply is difficult to lasting and balanced down new solution are provided.
Summary of the invention
The object of the present invention is to provide a kind of method of utilizing monosodium glutamate waste liquid to prepare nutrient substrate additive for greening.
As known from Table 1, monosodium glutamate waste liquid is rich in organism, and mostly is small organic molecule, as amino acid, urea, ucleotides degraded product etc.These organism itself have good activity, have good chelating ability as amino acid and ucleotides degraded product, can chelatropic reaction take place with trace element, thereby form chelated trace fertilizer; Or itself (as urea, ucleotides degraded product) very easily combine with soil enzyme and carry out further biochemical degradation, become littler molecule or group that plant can all directly absorb; Or itself be exactly microorganism carrier (as wet thallus) and have extremely strong biological activity.Simultaneously, monosodium glutamate waste liquid also contains the NH that plant can directly absorb
4+, K
+, Na
+, Mg
2+, Ca
2+, Fe
2+, Cl
-, SO
4 2-, PO
3 3Inorganic nutrient substance.These characteristics are laid a good foundation with equilibrium for further carrying out the nutrient allotment.
For this reason, originally provide following technical scheme:
Step 1: the monosodium glutamate waste liquid of collecting is imported evaporation concentration device carry out evaporation concentration, make moisture content between 50～70%.
Step 2: concentrated solution is imported the chemical reaction axe, measure and adjust between its pH value to 5.0～6.5, under strictness control liquid feeding condition, add any or two kinds of combinations in diethylene triamine pentacetic acid (DTPA) (DTPA), the hydroxyethylethylene diamine tri-acetic acid (HEDTA), temperature is controlled between 60～70 ℃, stirred cooling 20～30 minutes.
Step 3: under strictness control liquid feeding condition, to add volume percent be 1～10% ammonium dihydrogen phosphate, add volume percent is 1～10% potassium sulfate solution, add volume percent is that 1～10% solution of zinc sulfate, volume percent are that 1～10% Adlerika, volume percent are that 1～10% copperas solution, volume percent are the one or more combination in 1～10% the manganese sulfate solution, when with several combination, total volume integral that adds is than≤10%, the reaction ax temperature is controlled between 50～60 ℃, stirs 20～30 minutes.
Step 4: will detect indexs such as pH, nitrogen, phosphorus, potassium, zinc, iron, magnesium, manganese and also demarcate product specification according to this through the direct can of the mixed solution after the above-mentioned steps processing treatment.
Step 5: determine the nutrient substrate additive consumption according to the green plants type, with every 200m
2Use 1 ton of nutraceutical matrix meter, seeing blade profile plant (grass, filling, tall, rattan) additive amount is 0.5%～1.5%, seeing flower sight fruit type plant additive consumption is 1.0%～5.0%, and with the chemical fertilizer that contains N, P, K nutraceutical matrix is carried out nutrient and allocate, make it contain full nitrogen 3.0～5.0%, full phosphorus 0.5～2.0%, full potassium 1.0～2.5%.
Above-mentioned additive is in preparation process, replenish sequestrant DTPA or HEDTA, be in order further to strengthen the chelating ability of monosodium glutamate waste liquid, make zinc, magnesium, iron, trace elements such as manganese exist with the chelating attitude, replenish nitrogen, phosphorus, potassium, zinc, iron, magnesium, elements such as manganese are in order to allocate, balanced nutrients ratio and content, so that make that monosodium glutamate waste liquid itself just contains and replenish the nutritive element that adds and on content, reach higher level, reach on supply intensity that emergency is helped mutually and be tending towards synchronous purpose with plant absorbing, to solve trace element deficiency in the green soil and very easily to run off and the barren problem of nutrient that causes.Simultaneously, the organic substance that monosodium glutamate waste liquid itself contains then is fabulous soil improvement agent or biologically active agent, is beneficial to plant-growth and builds good plant rhizosphere micro-ecological environment.
The present invention's scheme preferably can be: the described evaporation concentration of step 1 adopts multiple-effect evaporation technology, and the benefit of doing like this is, reduces steam consumption, improves the efficient of evaporation concentration, and energy consumption is reduced to minimum level.
The present invention's scheme preferably can be: the method for the described adjustment concentrated solution of step 2 pH adopts and adds any in unslaked lime, white lime, the sodium hydroxide, and such benefit of doing is that material is easy to get, and is with low cost, simple operation.
The present invention's scheme preferably also can be: the method for the described adjustment concentrated solution of step 2 pH adopts any or several combinations that add in zinc oxide, magnesium oxide, iron protoxide, the manganese oxide, and wiring solution-forming or water be rare to add after diffusing and stirred 10～20 minutes.The benefit of doing like this is, the zinc that is added, magnesium, iron, manganese are the plant-growth bioelement, can reach the sequestrant DTPA or the HEDTA that added afterwards with the amino acid in the monosodium glutamate waste liquid chelatropic reaction takes place, the trace element fertilizer that becomes slow attitude and quick-acting attitude and deposit has nutrient and discharges the characteristics that emergency is helped mutually.
The present invention's scheme preferably can also be: the described strict control liquid feeding condition of step 2 is meant, configuration 0.01mol/LDTPA, 0.01mol/L HEDTA solution, adopt wherein any or two kinds of arbitrary proportion combinations, solution add-on and monosodium glutamate concentrating spent liquor volume ratio are controlled at 1: 10～20.The benefit of doing like this is, the chelating ability of further reinforced solution, replenish the chelating ability deficiency that amino acid causes because of relative content is less, so that the middle trace element that joins is existed with the chelating attitude to greatest extent, rather than exist, thereby improve plant recovery of nutrient with the ionic state that very easily runs off.
The present invention's scheme preferably can also be: the described strict control liquid feeding condition of step 3 is meant that the mode that at room temperature one or more combination in described zinc sulfate, sal epsom, ferrous sulfate, the manganous sulfate is mixed with saturated solution annotates.The benefit of doing like this is: (1) saturated solution percentage concentration height, can guarantee to have in the material that chelatropic reaction, the trace element fertilizer that becomes slow attitude and quick-acting attitude and deposit take place for zinc, magnesium, iron, manganese plasma and the amino acid of capacity and the sequestrant DTPA that added afterwards or HEDTA; (2) can reduce that moisture is brought into and towards rare material so that accumulating; (3) easy and simple to handle, save manpower.
The present invention is raw material with the monosodium glutamate waste liquid, is a kind of nutrient substrate additive that is used for road slope, exposed massif (stone quarry, mine) greening and urban green space with its processing, and have the following advantages: (1) cyclic utilization of waste economizes on resources; (2) find a kind of complete function, not only can protect fertile, but also the functional material that can improve the soil, can effectively solve ubiquitous vegetation degeneration in the present environmental greening, be difficult to problem such as maintenance, have a extensive future as nutrition base material additive for fertile; (3) having opened up a new road aspect monosodium glutamate waste liquid improvement and the comprehensive utilization, for numerous Gourmet Powder Factories provide a kind of energy-saving and emission-reduction new technology.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
Below in conjunction with specific embodiment the present invention is described in more details, protection scope of the present invention includes but not limited to following examples.
Product processing instance 1-1:
To collecting the monosodium glutamate waste liquid from A Gourmet Powder Factory, pH is 3.5～4.5, COD
Cr65g/L, BOD
535g/L, suspended substance 17g/L adopts 3 effect evaporation technologies to carry out evaporation concentration, to moisture content 70%.
Concentrated solution is imported the chemical reaction axe, and after measured, its pH value is 2.5, regulates pH to 6.0 with white lime solution, and temperature is controlled between 60～62 ℃, adds 0.01mol/L DTPA solution, and solution add-on and monosodium glutamate concentrating spent liquor volume ratio are 1: 10.Stirred cooling 20 minutes.
Add volume percent and be 2% zinc sulfate saturated solution, volume percent and be 3% saturated solution of magnesium sulfate, volume percent and be 2% ferrous sulfate saturated solution, volume percent and be 3% manganous sulfate saturated solution, the reaction ax temperature is controlled between 50～52 ℃, stirred cooling 20 minutes.
Will be through the direct can of the mixed solution after the above-mentioned steps processing treatment.After testing, pH of mixed 6.8, nitrogen 1.5%, potassium 0.5%, micro-total contents such as zinc, iron, magnesium, manganese are not less than 50mg/L, and demarcate product component content and specification.
Product processing instance 1-2:
To collecting the waste liquid from B Gourmet Powder Factory, pH is 4.5～5.0, COD
Cr70g/L, BOD
545g/L, suspended substance 17.5g/L adopts 6 effect evaporation technologies to carry out evaporation concentration, to moisture content 60%.
Concentrated solution is imported the chemical reaction axe, and after measured, its pH value is 3.0, regulates pH to 6.0 with sodium hydroxide solution, and temperature is controlled between 60～62 ℃, adds 0.01mol/L HEDTA solution, and solution add-on and monosodium glutamate concentrating spent liquor volume ratio are 1: 15.Stirred cooling 20 minutes.
Add volume percent and be 2% primary ammonium phosphate saturated solution, volume percent and be 2% zinc sulfate saturated solution, volume percent and be 2% saturated solution of magnesium sulfate, volume percent and be 2% ferrous sulfate saturated solution, volume percent and be 2% manganous sulfate saturated solution, the reaction ax temperature is controlled between 55～58 ℃, stirred cooling 25 minutes.
Will be through the direct can of the mixed solution after the above-mentioned steps processing treatment, after testing, pH of mixed 6.5, nitrogen 1.6%, phosphorus 0.3%, potassium 0.2%, micro-total contents such as zinc, iron, magnesium, manganese are not less than 45mg/L, and demarcate product component content and specification.
Product processing instance 1-3:
To collecting the waste liquid from C Gourmet Powder Factory, pH is 3.5～4.5, COD
Cr80g/L, BOD
550g/L, suspended substance 18g/L adopts 6 effect evaporation technologies to carry out evaporation concentration, to moisture content 50%.
Concentrated solution is imported the chemical reaction axe, after measured, its pH value is 2.5, is 1: 1: 1 with mass ratio: 1 zinc oxide, magnesium oxide, iron protoxide, manganese oxide mix, water is rare loose or wiring solution-forming after add, stirred 15 minutes, transfer pH to 6.5, temperature is controlled between 63～65 ℃, and 0.01mol/L DTPA solution, 0.01mol/L HEDTA solution are mixed according to volume ratio at 1: 1, add the monosodium glutamate concentrated solution after being mixed, mixed liquid and monosodium glutamate concentrating spent liquor volume ratio are 1: 20.Stirred cooling 20 minutes.
Add volume percent and be 3% primary ammonium phosphate saturated solution, volume percent and be 3% vitriolate of tartar saturated solution, volume percent is that 1% zinc sulfate saturated solution, volume percent are that 1% saturated solution of magnesium sulfate, volume percent are that 1% ferrous sulfate saturated solution, volume percent are 1% manganous sulfate saturated solution, the reaction ax temperature is controlled between 58～60 ℃, stirred cooling 30 minutes.
Will be through the direct can of the mixed solution after the above-mentioned steps processing treatment, after testing, pH of mixed 6.5, nitrogen 1.8%, phosphorus 0.3%, potassium 0.6%, micro-total contents such as zinc, iron, magnesium, manganese are not less than 50mg/L, and demarcate product component content and specification.
Product application example 2-1:
E section in expressway adds the stoneledge face for soil, and the gradient has bigger construction and maintenance difficulty greater than 70 degree.With starting material configuration nutrition base materials such as the matured compost of peat soil, feces of livestock and poultry and gardening refuse mixing composting, clay, chemical fertilizer, make it contain full nitrogen 5.0%, full phosphorus 0.5%, full potassium 1.0%, consumption is every 200m
2Use 1 ton, plants configuration is Qiao, filling, grass, the combination of rattan indigenous plant.Add the base material additive that example 1 is produced, consumption is 1.5%, uses after making itself and nutraceutical matrix thorough mixing again.The routine observation plant seed germination, emerge, the growing way situation, record, investigation corresponding index, the result shows, the engineering section of using additive obviously is better than not using the engineering section of additive, the vegetation degeneration problem do not occur under the situation of maintenance of in 1 year, not applying fertilizer, and the vegetation degeneration situation is not arranged with the engineering Duan Ze of additive.
Product application example 2-2:
Certain country park afforestation project, plants configuration mostly are sees flower sight fruit type plant.With material configuration nutrition base materials such as the matured compost of peat soil, feces of livestock and poultry and gardening refuse mixing composting, clay, chemical fertilizer, make it contain full nitrogen 5.0%, full phosphorus 2.0%, full potassium 2.5%, consumption is every 200m
2Use 1 ton.Add the base material additive that example 3 is produced, consumption is 5.0%, uses after making itself and nutraceutical matrix thorough mixing again.Situations such as routine observation plant growing way, the quantity of blooming, florescence, solid quantity, are investigated corresponding index at record, and the result shows, the plant growing way of using additive engineering section obviously is better than not using the plant of the engineering section of additive.
Claims (6)
1, a kind of method of utilizing monosodium glutamate waste liquid to prepare nutrient substrate additive for greening is characterized in that: with the monosodium glutamate waste liquid of Gourmet Powder Factory discharging is raw material and to its processing treatment, obtains a kind of have for fertile, protect the mixed solution of fertilizer, the function of improving the soil, step comprises:
Step 1: the monosodium glutamate waste liquid of collecting is imported evaporation concentration device carry out evaporation concentration, make moisture content between 50～70%.
Step 2: concentrated solution is imported the chemical reaction axe, measure and adjust between its pH value to 5.0～6.5, under strictness control liquid feeding condition, add any or two kinds of combinations in diethylene triamine pentacetic acid (DTPA) (DTPA), the hydroxyethylethylene diamine tri-acetic acid (HEDTA), temperature is controlled between 60～70 ℃, stirred cooling 20～30 minutes.
Step 3: under strictness control liquid feeding condition, to add volume percent be 1～10% ammonium dihydrogen phosphate, add volume percent is 1～10% potassium sulfate solution, add volume percent is that 1～10% solution of zinc sulfate, volume percent are that 1～10% Adlerika, volume percent are that 1～10% copperas solution, volume percent are the one or more combination in 1～10% the manganese sulfate solution, when with several combination, total volume integral that adds is than≤10%, the reaction ax temperature is controlled between 50～60 ℃, stirs 20～30 minutes.
Step 4: will detect indexs such as pH, nitrogen, phosphorus, potassium, zinc, iron, magnesium, manganese and also demarcate product specification according to this through the direct can of the mixed solution after the above-mentioned steps processing treatment.
Step 5: determine the nutrient substrate additive consumption according to the green plants type, with every 200m
2Use 1 ton of nutraceutical matrix meter, seeing blade profile plant (grass, filling, tall, rattan) additive amount is 0.5%～1.5%, seeing flower sight fruit type plant additive consumption is 1.0%～5.0%, and with the chemical fertilizer that contains N, P, K nutraceutical matrix is carried out nutrient and allocate, make it contain full nitrogen 3.0～5.0%, full phosphorus 0.5～2.0%, full potassium 1.0～2.5%.
2, a kind of method of utilizing monosodium glutamate waste liquid to prepare nutrient substrate additive for greening according to claim 1 is characterized in that: the described evaporation concentration of step 1 adopts multiple-effect evaporation technology.
3, a kind of method of utilizing monosodium glutamate waste liquid to prepare nutrient substrate additive for greening according to claim 1 is characterized in that: the method for the described adjustment concentrated solution of step 2 pH adopts and adds any in unslaked lime, white lime, the sodium hydroxide.
4, a kind of method of utilizing monosodium glutamate waste liquid to prepare nutrient substrate additive for greening according to claim 1, it is characterized in that: the method for the described adjustment concentrated solution of step 2 pH adopts any or several combinations that add in zinc oxide, magnesium oxide, iron protoxide, the manganese oxide, and wiring solution-forming or water be rare to add after diffusing and stirred 10～20 minutes.
5, a kind of method of utilizing monosodium glutamate waste liquid to prepare nutrient substrate additive for greening according to claim 1, it is characterized in that: the described strict control liquid feeding condition of step 2 is meant, configuration 0.01mol/L DTPA, 0.01mol/L HEDTA solution, adopt wherein any or two kinds of arbitrary proportion combinations, solution add-on and monosodium glutamate concentrating spent liquor volume ratio are controlled at 1: 10～20.
6, a kind of method of utilizing monosodium glutamate waste liquid to prepare nutrient substrate additive for greening according to claim 1 is characterized in that: the described strict control liquid feeding condition of step 3 is meant that the mode that at room temperature one or more combination in described zinc sulfate, sal epsom, ferrous sulfate, the manganous sulfate is mixed with saturated solution annotates.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167633A (en) * | 2010-12-29 | 2011-08-31 | 菱花集团有限公司 | Amino acid plant nutrient solution and agricultural applications thereof |
| CN102173881A (en) * | 2010-12-29 | 2011-09-07 | 菱花集团有限公司 | Production method of amino acid plant nutrient solution |
| CN102613242A (en) * | 2012-03-05 | 2012-08-01 | 佛山科学技术学院 | Turfgrass stress resistance green reinforcer and application method thereof |
| CN112607890A (en) * | 2020-12-30 | 2021-04-06 | 詹利 | Zero-discharge water treatment process for high-salt-content water containing calcium and magnesium ions |
| CN116003275A (en) * | 2022-12-01 | 2023-04-25 | 四川花语精细化工有限公司 | Process method for synthesizing low-salt sodium lauroyl glutamate by utilizing monosodium glutamate last mother liquor |
-
2009
- 2009-08-14 CN CN200910109597A patent/CN101628835A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167633A (en) * | 2010-12-29 | 2011-08-31 | 菱花集团有限公司 | Amino acid plant nutrient solution and agricultural applications thereof |
| CN102173881A (en) * | 2010-12-29 | 2011-09-07 | 菱花集团有限公司 | Production method of amino acid plant nutrient solution |
| CN102613242A (en) * | 2012-03-05 | 2012-08-01 | 佛山科学技术学院 | Turfgrass stress resistance green reinforcer and application method thereof |
| CN112607890A (en) * | 2020-12-30 | 2021-04-06 | 詹利 | Zero-discharge water treatment process for high-salt-content water containing calcium and magnesium ions |
| CN116003275A (en) * | 2022-12-01 | 2023-04-25 | 四川花语精细化工有限公司 | Process method for synthesizing low-salt sodium lauroyl glutamate by utilizing monosodium glutamate last mother liquor |
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Open date: 20100120 |