CN114262143A - Method for improving dehydration efficiency of antibiotic fungi residues through combined conditioning of microwaves and biochar - Google Patents
Method for improving dehydration efficiency of antibiotic fungi residues through combined conditioning of microwaves and biochar Download PDFInfo
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- 230000003115 biocidal effect Effects 0.000 title claims abstract description 74
- 230000003750 conditioning effect Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000018044 dehydration Effects 0.000 title claims abstract description 15
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 15
- 241000233866 Fungi Species 0.000 title claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000012065 filter cake Substances 0.000 claims abstract description 36
- 239000010802 sludge Substances 0.000 claims abstract description 5
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 14
- ULGZDMOVFRHVEP-RWJQBGPGSA-N Erythromycin Chemical compound O([C@@H]1[C@@H](C)C(=O)O[C@@H]([C@@]([C@H](O)[C@@H](C)C(=O)[C@H](C)C[C@@](C)(O)[C@H](O[C@H]2[C@@H]([C@H](C[C@@H](C)O2)N(C)C)O)[C@H]1C)(C)O)CC)[C@H]1C[C@@](C)(OC)[C@@H](O)[C@H](C)O1 ULGZDMOVFRHVEP-RWJQBGPGSA-N 0.000 claims description 12
- 241000609240 Ambelania acida Species 0.000 claims description 11
- 239000010905 bagasse Substances 0.000 claims description 11
- 229930182555 Penicillin Natural products 0.000 claims description 10
- JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 claims description 10
- 229940049954 penicillin Drugs 0.000 claims description 10
- UCSJYZPVAKXKNQ-HZYVHMACSA-N streptomycin Chemical compound CN[C@H]1[C@H](O)[C@@H](O)[C@H](CO)O[C@H]1O[C@@H]1[C@](C=O)(O)[C@H](C)O[C@H]1O[C@@H]1[C@@H](NC(N)=N)[C@H](O)[C@@H](NC(N)=N)[C@H](O)[C@H]1O UCSJYZPVAKXKNQ-HZYVHMACSA-N 0.000 claims description 8
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 claims description 6
- 229960003276 erythromycin Drugs 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 229960005322 streptomycin Drugs 0.000 claims description 4
- KIPLYOUQVMMOHB-MXWBXKMOSA-L [Ca++].CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O.CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O Chemical compound [Ca++].CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O.CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O KIPLYOUQVMMOHB-MXWBXKMOSA-L 0.000 claims description 3
- 229940063650 terramycin Drugs 0.000 claims description 2
- 241000658379 Manihot esculenta subsp. esculenta Species 0.000 claims 1
- 238000011085 pressure filtration Methods 0.000 abstract description 16
- 230000001580 bacterial effect Effects 0.000 abstract description 7
- 230000001143 conditioned effect Effects 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 2
- 241000894006 Bacteria Species 0.000 abstract 3
- 239000000203 mixture Substances 0.000 description 15
- 208000005156 Dehydration Diseases 0.000 description 11
- 240000003183 Manihot esculenta Species 0.000 description 5
- 239000003814 drug Substances 0.000 description 4
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- 230000000052 comparative effect Effects 0.000 description 3
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- 239000003674 animal food additive Substances 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
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- 230000003834 intracellular effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- 239000004100 Oxytetracycline Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000011278 co-treatment Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- IWVCMVBTMGNXQD-PXOLEDIWSA-N oxytetracycline Chemical compound C1=CC=C2[C@](O)(C)[C@H]3[C@H](O)[C@H]4[C@H](N(C)C)C(O)=C(C(N)=O)C(=O)[C@@]4(O)C(O)=C3C(=O)C2=C1O IWVCMVBTMGNXQD-PXOLEDIWSA-N 0.000 description 1
- 229960000625 oxytetracycline Drugs 0.000 description 1
- 235000019366 oxytetracycline Nutrition 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- IWVCMVBTMGNXQD-UHFFFAOYSA-N terramycin dehydrate Natural products C1=CC=C2C(O)(C)C3C(O)C4C(N(C)C)C(O)=C(C(N)=O)C(=O)C4(O)C(O)=C3C(=O)C2=C1O IWVCMVBTMGNXQD-UHFFFAOYSA-N 0.000 description 1
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- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
本发明公开了一种微波与生物炭联合调理提高抗生素菌渣脱水效率的方法，将含水率在85～98wt％的抗生素菌渣和生物炭混合，生物炭用量为抗生素菌渣的0.5wt％～5wt％，在微波条件下调理，微波功率0.5～10kW，本发明将微波调理后的污泥进行压滤得到脱水后的抗生素菌渣滤饼。将抗生素菌渣采用微波与生物炭联合调理技术进行脱水处置，既能够利用生物炭吸收微波对抗生素菌渣进行破壁，又能够利用生物炭的天然孔道结构将释放出的水分有效排出，从而显著提高了抗生素菌渣的脱水效率。The invention discloses a method for improving the dehydration efficiency of antibiotic bacterial residue by microwave and biochar combined conditioning. The antibiotic bacterial residue with a moisture content of 85-98 wt % is mixed with biochar, and the amount of biochar is 0.5 wt % to 0.5 wt % of the antibiotic bacterial residue. 5 wt %, conditioned under microwave conditions, and the microwave power is 0.5-10 kW. In the present invention, the sludge conditioned by the microwave is subjected to pressure filtration to obtain a dehydrated antibiotic bacteria residue filter cake. The antibiotic bacteria residue is dehydrated by the combined conditioning technology of microwave and biochar, which can not only use the biochar to absorb microwaves to break the antibiotic bacteria residue, but also use the natural pore structure of the biochar to effectively discharge the released water. The dehydration efficiency of antibiotic bacterial residue is improved.
Description
The technical field is as follows:
the invention relates to the technical field of waste treatment, in particular to a method for improving antibiotic fungi residue dehydration efficiency by combined conditioning of microwave and biochar.
Background art:
antibiotic dregs generated in the antibiotic fermentation production process mainly comprise antibiotic thallus cell substances, residual culture medium and some inert carriers added in the fermentation liquor filtering process. For the treatment of antibiotic fungi residues, pharmaceutical production enterprises at home and abroad have been used as feed or feed additives for many years. Because the antibiotic residues contain a small amount of residual antibiotic drug components and degradation products thereof, the residual drug components enter food chains and environments, and the problem of drug resistance of human and environmental microorganisms caused by the residual drug components is a lot of controversy. At present, the antibiotic fungi residues containing a small amount of residual medicine components are generally considered to be treated as dangerous waste, cannot be used as feed or feed additives, even can be used as fertilizer and is prohibited, and only can be used as the dangerous waste for incineration disposal. At present, the moisture content of antibiotic fungi residues generated in pharmaceutical factories is mostly more than 85% after preliminary dehydration, and based on the consideration of safety and economy of subsequent treatment processes, the domestic related technical specifications generally require that the moisture content of filter cakes is not higher than 60%, wherein the moisture content is required to be less than 50% if the antibiotic fungi residues are separately burned, so that a large amount of additives are generally required to be added to reduce the moisture content of the antibiotic fungi residues, and the treatment cost is very high. Because the antibiotic residues contain a large amount of intracellular water, the unconditioned residues can hardly be subjected to further dehydration treatment. The types of commonly used conditioners can be divided into chemical conditioners, physical conditioners, biological conditioners, composite conditioners and the like, and the problems of large polarity difference, more complex components of dewatered sludge, poor economic benefit and the like exist. The extracellular polymeric substance of the antibiotic dregs has extremely strong hydrophilic and water-holding capacity, so that the release of the bound water is difficult, and therefore, the breaking of the extracellular polymeric substance is considered as the key point of the efficient dehydration of the dregs. At present, the microwave conditioning technology is widely applied to dehydration treatment of sludge and can effectively crack extracellular polymers, but the technology is not applied to the dehydration process of antibiotic bacterial residues. In addition, in the mechanical dehydration process, moisture in the mushroom dregs is mainly discharged through the water seepage channel, and organic matters contained in the mushroom dregs are easily deformed by pressure to cause channel blockage, so that a new method is urgently needed to be provided.
The invention content is as follows:
the invention aims to provide a method for improving the dehydration efficiency of antibiotic fungi residues by combined conditioning of microwave and biochar.
The invention is realized by the following technical scheme:
a method for improving antibiotic fungi residue dehydration efficiency by microwave and biochar combined conditioning comprises the following steps: mixing the antibiotic fungi residues with the water content of 85-98 wt%, preferably 95 wt% with biochar, wherein the using amount of the biochar is 0.5-5 wt%, preferably 1-3 wt% of the antibiotic fungi residues, conditioning under the microwave condition, the microwave power is 0.5-10 kW, preferably 5-10 kW, performing filter pressing on the sludge subjected to microwave conditioning, and the pressure applied during filter pressing is 0.5-6 MPa, preferably 4-6 MPa, so as to obtain the dehydrated antibiotic fungi residue filter cake.
The antibiotic residues are one of penicillin residues, terramycin residues, streptomycin residues and erythromycin residues.
The conditioning time under the microwave condition is 0.1-0.5 h.
The biochar is prepared by pyrolyzing bagasse, cassava residues and cloth scraps at 300-750 ℃ for 0.5-5 h in an oxygen-free environment.
According to the invention, efficient extracellular polymer cracking and wall breaking treatment is carried out on the antibiotic fungi residues by using microwaves, and then the skeleton of the water seepage channel is constructed by using the structural characteristics of biochar, so that the water content of antibiotic fungi residue filter cakes is greatly reduced.
According to the invention, the microwave wall breaking technology and the biochar skeleton construct are jointly conditioned, so that not only can the effective discharge of antibiotic fungi residue combined water and intracellular water be ensured, but also the biochar can be used as a microwave absorbent to improve the energy utilization efficiency of microwaves, and meanwhile, the co-treatment of solid wastes such as bagasse and the like is realized.
The invention has the following beneficial effects:
1) according to the invention, the antibiotic residues are dehydrated by adopting a microwave and biochar combined conditioning technology, so that the biochar can be used for absorbing microwaves to break the walls of the antibiotic residues, and the released water can be effectively discharged by utilizing the natural pore structure of the biochar, thereby obviously improving the dehydration efficiency of the antibiotic residues.
2) Particularly, the microwave treatment and the addition of the biochar do not cause the introduction of extra pollutants such as heavy metal and the like, and are favorable for the further harmless treatment of the dehydrated antibiotic residues.
3) The method is simple and easy to implement, and can be further popularized and applied to the disposal of other organic wastes which are not easy to dehydrate and the cooperative disposal of cellulose biomass.
The specific implementation mode is as follows:
the following is a further description of the invention and is not intended to be limiting.
Example 1:
pyrolyzing bagasse at 550 ℃ for 2h in an oxygen-free environment to obtain biochar, and uniformly mixing penicillin fungi residue with the water content of 95 wt% with the biochar, wherein the biochar accounts for 2 wt% of antibiotic fungi residue. And then conditioning the mixture for 0.5h under the condition of 10kW of microwave, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 6MPa to obtain a filter cake. The water content of the cake was measured by a water content meter, and the water content of the cake was found to be 46.2 wt% (48.8% of dehydrated water).
Comparative example 1:
and (3) conditioning the penicillin fungi residues with the water content of 95 wt% for 0.5h under the microwave condition of 10kW, and performing filter pressing on the antibiotic fungi residues subjected to microwave conditioning under the pressure of 6MPa to obtain a filter cake. The water content of the cake was measured by a water content meter, and the water content of the cake was found to be 66.9 wt% (28.1% of dehydrated water).
Comparative example 2:
pyrolyzing bagasse at 550 ℃ for 2h in an oxygen-free environment to obtain biochar, and uniformly mixing penicillin fungi residue with the water content of 95 wt% with the biochar, wherein the biochar accounts for 2 wt% of antibiotic fungi residue. The mixture was then subjected to pressure filtration at a pressure of 6MPa to obtain a filter cake. The water content of the cake was measured by a water content meter, and the water content of the cake was found to be 78.5% by weight (16.5% by weight of dehydrated water).
Compared with comparative examples 1 and 2, the antibiotic fungi residues are dehydrated by adopting a microwave and biochar combined conditioning technology, so that the synergistic effect is realized.
Example 2
Pyrolyzing bagasse at 750 ℃ for 5h in an oxygen-free environment to obtain biochar, and uniformly mixing penicillin fungi residue with the water content of 95 wt% with the biochar, wherein the biochar accounts for 5 wt% of antibiotic fungi residue. And then conditioning the mixture for 0.5h under the condition of 10kW of microwave, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 6MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and found to be 48.1 wt%.
Example 3
Pyrolyzing the cassava residue at 750 ℃ for 0.5h in an oxygen-free environment to obtain biochar, and uniformly mixing the penicillin fungi residue with the water content of 95 wt% with the biochar, wherein the dosage of the biochar is 1 wt% of the antibiotic fungi residue. And then conditioning the mixture for 0.5h under the condition of 10kW of microwave, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 6MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and found to be 51.4 wt%.
Example 4
The cloth is crushed and pyrolyzed for 5 hours at 350 ℃ in an oxygen-free environment to obtain biochar, penicillin fungi residue with the water content of 95 wt% is uniformly mixed with the biochar, and the using amount of the biochar is 3 wt% of antibiotic fungi residue. And then conditioning the mixture for 0.5h under the condition of 10kW of microwave, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 6MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and found to be 49.4 wt%.
Example 5
Pyrolyzing bagasse at 650 ℃ for 3h in an oxygen-free environment to obtain biochar, and uniformly mixing the terramycin mushroom residue with the water content of 95 wt% with the biochar, wherein the dosage of the biochar is 2 wt% of the antibiotic mushroom residue. And then conditioning the mixture for 0.2h under the microwave condition of 5kW, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 3MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and found to be 56.9 wt%.
Example 6
The cloth is crushed and pyrolyzed for 4 hours at 450 ℃ in an oxygen-free environment to obtain biochar, and streptomycin mushroom residue with the water content of 95 wt% and the biochar are uniformly mixed, wherein the using amount of the biochar is 0.5 wt% of antibiotic mushroom residue. And then conditioning the mixture for 0.2h under the microwave condition of 5kW, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 1MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and the water content of the filter cake was 60.5 wt%.
Example 7
Pyrolyzing the cassava residues at 750 ℃ for 2h in an oxygen-free environment to obtain biochar, and uniformly mixing the penicillin fungi residues with the water content of 95 wt% with the biochar, wherein the dosage of the biochar is 5 wt% of the antibiotic fungi residues. And then conditioning the mixture for 0.5h under the microwave condition of 1kW, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 2MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and found to be 57.5 wt%.
Example 8
Pyrolyzing bagasse at 750 ℃ for 2h in an oxygen-free environment to obtain biochar, and uniformly mixing oxytetracycline bacterial residue with the water content of 95 wt% with the biochar, wherein the dosage of the biochar is 5 wt% of antibiotic bacterial residue. And then conditioning the mixture for 0.1h under the microwave condition of 1kW, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 5MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and found to be 53.7 wt%.
Example 9
Pyrolyzing bagasse at 450 ℃ for 5h in an oxygen-free environment to obtain biochar, and uniformly mixing penicillin fungi residue with the water content of 95 wt% with the biochar, wherein the biochar accounts for 4 wt% of antibiotic fungi residue. And then conditioning the mixture for 0.3h under the condition of 10kW of microwave, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 4MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and found to be 46.8 wt%.
Example 10
Pyrolyzing the cassava residues at 350 ℃ for 4h in an oxygen-free environment to obtain biochar, and uniformly mixing the streptomycin residues with the water content of 95 wt% with the biochar, wherein the dosage of the biochar is 1 wt% of the antibiotic residues. And then conditioning the mixture for 0.1h under the microwave condition of 0.5kW, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 2MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and found to be 63.0 wt%.
Example 11
Pyrolyzing bagasse at 550 ℃ for 2h in an oxygen-free environment to obtain biochar, and uniformly mixing erythromycin mushroom residue with the water content of 95 wt% with the biochar, wherein the biochar accounts for 2 wt% of antibiotic mushroom residue. And then conditioning the mixture for 0.5h under the condition of 10kW of microwave, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 6MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and found to be 48.6 wt%.
Example 12
The cloth is crushed and pyrolyzed for 4 hours at 450 ℃ in an anaerobic environment to obtain biochar, and the erythromycin mushroom residue with the water content of 95 wt% and the biochar are uniformly mixed, wherein the dosage of the biochar is 0.5 wt% of the antibiotic mushroom residue. And then conditioning the mixture for 0.2h under the microwave condition of 5kW, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 1MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and the water content of the filter cake was 60.1 wt%.
Example 13
Pyrolyzing the cassava residues at 750 ℃ for 0.5h in an oxygen-free environment to obtain biochar, and uniformly mixing the erythromycin mushroom residues with the biochar, wherein the water content of the biochar is 95 wt%, and the biochar accounts for 1 wt% of the antibiotic mushroom residues. And then conditioning the mixture for 0.5h under the condition of 10kW of microwave, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 6MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and found to be 51.7 wt%.
Example 14
Pyrolyzing bagasse at 450 ℃ for 5h in an oxygen-free environment to obtain biochar, and uniformly mixing erythromycin mushroom residue with the water content of 95 wt% with the biochar, wherein the biochar accounts for 4 wt% of antibiotic mushroom residue. And then conditioning the mixture for 0.3h under the condition of 10kW of microwave, and carrying out pressure filtration on the antibiotic residues subjected to microwave conditioning under the pressure of 4MPa to obtain a filter cake. The water content of the filter cake was measured by a water content meter, and found to be 47.7 wt%.
Claims (8)
1. A method for improving antibiotic fungi residue dehydration efficiency by microwave and biochar combined conditioning is characterized by comprising the following steps: mixing the antibiotic fungi residues with the water content of 85-98 wt% with biochar, wherein the using amount of the biochar is 0.5-5 wt% of the antibiotic fungi residues, conditioning under the microwave condition, the microwave power is 0.5-10 kW, performing filter pressing on the sludge after microwave conditioning, and applying the pressure intensity of 0.5-6 MPa during filter pressing to obtain the dehydrated antibiotic fungi residue filter cake.
2. The method of claim 1, wherein the antibiotic pomace has a water content of 95 wt%.
3. The method of claim 1, wherein the antibiotic mushroom dregs are one of penicillin mushroom dregs, terramycin mushroom dregs, streptomycin mushroom dregs and erythromycin mushroom dregs.
4. The method according to claim 1, wherein the biochar is used in an amount of 1-3 wt% of the antibiotic fungi residues.
5. The method according to claim 1, wherein the microwave power is 5-10 kW.
6. The method according to claim 1, wherein the conditioning time under microwave conditions is 0.1-0.5 h.
7. The method according to claim 1, wherein the pressure during filter pressing is 4-6 MPa.
8. The method according to claim 1, wherein the biochar is prepared by pyrolyzing bagasse, cassava residue and cloth in an oxygen-free environment at 300-750 ℃ for 0.5-5 h.
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Cited By (5)
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| CN115283398A (en) * | 2022-08-05 | 2022-11-04 | 中国科学院广州能源研究所 | A method for co-pyrolysis of antibiotic bacterial residue and sludge to synergize nitrogen and heavy metal fixation |
| CN115744999A (en) * | 2022-09-27 | 2023-03-07 | 青岛农业大学 | CuFeO with delafossite type structure 2 Biological carbon composite material and preparation method thereof |
| CN116212522A (en) * | 2023-02-17 | 2023-06-06 | 中国科学院广州能源研究所 | A method for improving the dehydration efficiency of antibiotic slag by synergistic high-pressure filtration with hydrothermal carbon in sludge |
| CN116786082A (en) * | 2023-07-27 | 2023-09-22 | 大同同星抗生素有限责任公司 | Specific adsorbent for oxytetracycline and preparation method thereof |
| CN118702392A (en) * | 2024-07-22 | 2024-09-27 | 中原环保股份有限公司 | A method for treating low calorific value sludge by coordinating high calorific value solid waste with microwave conditioning |
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