Effect of anaerobic pretreatment on vinegar residue for enhancement of syngas and phenols derived from pyrolysis

2019 ◽  
Vol 14 (5) ◽  
Author(s):  
Peng Liu ◽  
Yue Wang ◽  
Zhengzhong Zhou ◽  
Haoran Yuan ◽  
Tao Zheng
Keyword(s):  
Vinegar Residue ◽  
Anaerobic Pretreatment

Thermophilic Anaerobic Contact Digestion of Palm Oil Mill Effluent

1985 ◽  
Vol 17 (2-3) ◽  
pp. 155-166 ◽  
Author(s):  
A. Ibrahim ◽  
B. G. Yeoh ◽  
S. C. Cheah ◽  
A. N. Ma ◽  
S. Ahmad ◽  
...  
Keyword(s):  
Palm Oil ◽  
Liquid Waste ◽  
Palm Oil Mill Effluent ◽  
Organic Load ◽  
Anaerobic Digesters ◽  
Effective System ◽  
Contact Digestion ◽  
Palm Oil Mill ◽  
High Level ◽  
Anaerobic Pretreatment

The palm oil industry is one of the major agro-based industries in Malaysia whose production accounts for more than 90% of the world export. The industry, however, also generates enormous quantities of liquid waste with high organic load causing serious pollution problems. In view of the high level of organics, anaerobic pretreatment is usually practised prior to aerobic breakdown. Most of the anaerobic digesters installed at the mills are currently operated under mesophilic conditions. However, the inherently high temperature of the effluent suggests that thermophilic digestion would bring about a much more effective system. This paper reports on results obtained from a pilot plant study on thermophilic anaerobic contact digestion of palm oil mill effluent which has been conducted and includes a microbiological study associated with the investigation.

Study on the nutritional value and ruminal degradation characteristics of fermented waste vinegar residue by N. sitophila

2019 ◽  
Vol 51 (6) ◽  
pp. 1449-1454
Author(s):  
Ci Liu ◽  
Lin Zhang ◽  
Jiye Yang ◽  
Wenjia Zhang ◽  
Qianqian Wang ◽  
...  
Keyword(s):  
Nutritional Value ◽  
Vinegar Residue ◽  
Ruminal Degradation

The use of coal fly ash and vinegar residue as additives in the two-stage composting of green waste

2019 ◽  
Vol 26 (27) ◽  
pp. 28173-28187 ◽  
Author(s):  
Lu Zhang ◽  
Xiangyang Sun
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash ◽  
Two Stage ◽  
Green Waste ◽  
Vinegar Residue

Pretreatment and biotreatment of saline industrial wastewaters

2006 ◽  
Vol 53 (3) ◽  
pp. 17-25 ◽  
Author(s):  
B.J.W. Tuin ◽  
R. Geerts ◽  
J.B. Westerink ◽  
C.G. van Ginkel
Keyword(s):  
Biological Treatment ◽  
Chloride Concentration ◽  
High Strength ◽  
Aerobic Biodegradation ◽  
Aerobic Treatment ◽  
Chloride Level ◽  
Akzo Nobel ◽  
Adaptation Time ◽  
Saline Waters ◽  
Anaerobic Pretreatment

Wastewater from an Akzo Nobel production site contains more than 50 g/l total dissolved salts, mainly chlorides and sulphates, and is currently being treated after 10–20× dilution. Biological treatment of undiluted or less diluted wastewater is very desirable for environmental and economic reasons. Possibilities were investigated in laboratory scale reactors to treat this highly saline and high strength wastewater aerobically, either after long adaptation or after removing part of the salts by a pretreatment. Adaptation and selection from mixed activated sludge populations took approximately 40 days to finally achieve a COD removal in aerobic treatment of 55–65% at two times dilution (11–16 g/l chloride and 5–7 g/l sulphate). Undiluted wastewater was not treatable. A higher removal percentage (>80%) was possible at the original high salt concentration only when the sludge load was limited to approximately 0.4–0.5 kg COD/kg sludge/day. A longer adaptation time was required. Nanofiltration (NF) and crystallization could be used as a pretreatment to remove and recover up to 80% of the sulphate in the form of crystallized Glauber salt. Recovery strongly depended on the sulphate and chloride concentration in the NF concentrate and on crystallization temperature. The salt (sulphate) reduction through the NF improved the removal efficiency of a consecutive biotreatment only at a relatively low chloride level, demonstrating that the combination of nanofiltration-crystallization-aerobic biodegradation is less feasible for very saline wastewaters. Anaerobic pretreatment of saline waters turned out to be rather sensitive to high salinities. Only wastewater diluted to 10 g/l chloride could be treated well: sulphate concentration decreased by 80% and COD by 40%. Removal efficiencies of the combined anaerobic-aerobic treatment were approximately 80–85%, proving that this was a feasible route for 2–3× diluted wastewater. The study has shown that several alternatives are available for treatment of the very saline wastewaters at a much lower degree of dilution than currently practiced.

MODIFICATION AND INHERITANCE OF PLEIOTROPIC CROSS RESISTANCE AND COLLATERAL SENSITIVITY IN SACCHAROMYCES CEREVISIAE

Genetics ◽  
1975 ◽  
Vol 80 (3) ◽  
pp. 483-493
Author(s):  
G H Rank ◽  
A J Robertson ◽  
K L Phillips
Keyword(s):  
Ethidium Bromide ◽  
Single Gene ◽  
Nuclear Gene ◽  
Cross Resistance ◽  
Collateral Sensitivity ◽  
Increased Sensitivity ◽  
Partial Suppression ◽  
Dequalinium Chloride ◽  
Triton X ◽  
Anaerobic Pretreatment

ABSTRACT A meiotic segregant (oliPR1) was isolated with a phenotype of multiple cross resistance and collateral sensitivity. Strain oliPR1 has increased sensitivity to ethidium bromide, dequalinium chloride, acriflavin, paromomycin and neomycin, and increased resistance to oligomycin, rutamycin, venturicidin, triethyltin bromide, antimycin, carbonylcynamide-m-chlorophenylhydrazone, tetra-N-butylammonium bromide, dibenzyldimethylammonium chloride, triphenylmethylphosphonium bromide, chloramphenicol, carbomycin, tetracycline, triton-X-165 and cycloheximide. Single gene inheritance of the cross resistance and collateral sensitivity was shown by 2:2 parental ditype segregation and reversion of the complete phenotype by a spontaneous revertant. The locus conferring the oliPR1 phenotype was mapped 11.7 units from an unspecified centromere. Antibiotic resistance showed incomplete dominance, with the level of hybrid resistance dependent upon the inhibitor tested. Resistant diploids that produced four resistant ascospores were the result of mitotic recombination prior to meiosis. A partial revertant phenotype (sensitive to all inhibitors except oligomycin, antimycin and carbonylcyanide-m-chlorophenylhydrazone) was shown to be due to a single nuclear gene causing partial suppression of oliPR1. Anaerobic pretreatment, 37° and 0.5 M KCl were observed to reduce the growth of oliPR1 when challenged with seven diverse inhibitors (antimycin, carbonylcyanide-m-chlorophenylhydrazone,-chloramphenicol, cycloheximide, oligomycin, triethyltin bromide, and triphenylmethylphosphonium bromide). Resistance to cycloheximide was not altered by the [rho—] state. A revertant of oliPR1 (sensitive to the above inhibitors but resistant to ethidium bromide, paromycin and neomycin) showed anaerobic and temperature sensitization to ethidium bromide, paromomycin and neomycin. Continuous monitoring of oxygen uptake by the revertant after anaerobic pretreatment revealed that anaerobiosis sensitized respiratory adaptation of the revertant to neomycin. It is proposed that oliPR1 is a mutation resulting in the alteration of plasma membrane premeability to many diverse inhibitors.

Influence of steam explosion pretreatment on the anaerobic digestion of vinegar residue

2016 ◽  
Vol 34 (7) ◽  
pp. 630-637 ◽  
Author(s):  
Jiayu Feng ◽  
Jiyu Zhang ◽  
Jiafu Zhang ◽  
Yanfeng He ◽  
Ruihong Zhang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Steam Explosion ◽  
Steam Explosion Pretreatment ◽  
Vinegar Residue

Anaerobic pretreatment of hazardous waste leachates in publicly owned treatment works

1995 ◽  
Vol 67 (6) ◽  
pp. 910-920
Author(s):  
Margaret J. Kupferle ◽  
Tsaichu Chen ◽  
Vicente J. Gallardo ◽  
David E. Lindberg ◽  
Paul L. Bishop ◽  
...  
Keyword(s):  
Hazardous Waste ◽  
Publicly Owned Treatment Works ◽  
Publicly Owned ◽  
Anaerobic Pretreatment
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