scholarly journals THE POTENTIAL BIODEGRADATION HYDROCARBONS OF PETROLEUM SLUDGE WASTE BY CELL BIOMASS SPONGE Callysppongia sp.

2018 ◽  
Author(s):  
Ismail Marzuki ◽  
Alfian Noor ◽  
Nursiah La Nafie
Keyword(s):  
Gravimetric Method ◽  
Petroleum Contamination ◽  
Marine Life ◽  
Waste Sludge ◽  
Hydrocarbon Component ◽  
Cell Biomass ◽  
Petroleum Sludge ◽  
Degradation Rates ◽  
Aromatic Components ◽  
Sludge Waste

The toxicity of petroleum sludge is a serious threat to marine life. Necessary concrete steps petroleum contamination reduction through a search of potential marine materials degrade toxic components hydrocarbons. The sponge is one potential material reducing toxic properties of petroleum contamination. The research objective was to determine the potential Callyspongia sp sponge against the degradation of petroleum hydrocarbon sludge. Four variations of treatment used to determine the potential of sponge biomass, namely: the treatment I, II, III and IV. Indicators degradation is the formation of gas, the smell fermentation, pH changes and increase in the absorbance of the suspension of media degradation. The level degradation each treatment is determined gravimetric method and the known hydrocarbon component changes by using GC-MS. Unidentified gas, the smell of fermentation and changes in media of pH on average degradation occurs on the 15 days of contact for all treatments. Data showed degradation occurs absorbance maximum at 20- 25 days to contact. The highest degradation rates indicated by IV treatment (26.93 %), III (24.84 %), II (22.59 %), and I: (18.20 %). Found 20 kinds of components in the waste sludge aliphatic petroleum to form a homologous series nC10-nC30, and two aromatic components, namely the 2.7-dimethyl naphthalene and 1.4-dimethyl azulene. Callyspongia sp sponge biomass concluded at the highest IV treatment degrading aliphatic hydrocarbons, then treatment III, II and I, while the aromatic components are not degraded by biomass Callyspongia sp sponge at all treatments

scholarly journals Mikrosimbion Spons Callyspongia Sp. Sebagai Biomaterial Pendegradasi Hidrokarbon Limbah Sludge Minyak Bumi

2018 ◽  
Author(s):  
Ismail Marzuki
Keyword(s):  
Bacillus Subtilis ◽  
Optical Density ◽  
Retention Time ◽  
Contact Time ◽  
Subtilis Strain ◽  
Ph Change ◽  
Hydrocarbon Component ◽  
Petroleum Sludge ◽  
Before And After ◽  
Aromatic Components

Sponges one marine natural wealth of Indonesia, mostly in symbiosis with microorganisms, and potential as biomaterials degrading hydrocarbon component. The research objective is to reduce the nature of toxic, mutagenic and carcinogenic petroleum sludge. The method used, namely: interaction microsymbiont against petroleum sludge on the variation of contact time and the addition of nutrients NPK treatment and supply oxygen to the Shaker, is expected to degrade the hydrocarbon components in the waste SMB. Biomaterials degrading used is Bacillus subtilis strain BAB-1684, is a sponge microsymbiont Callyspongia sp, obtained in petroleum waste contaminated area around the refinery Melawai Beach Balikpapan, while the degradation of sludge as an object obtained from PT. Chevron Pacific Indonesia, Dumai-Riau. Degradation indicators were observed, namely: optical density (λ = 600 nm); pH; the level of degradation; retention time; abundance of components; and the concentration of hydrocarbons before and after contact was measured using GC-MS. The results obtained, namely: the highest optical density of 0.654 absorbance, pH change media degradation 7 to 6, the maximum degradation rate reached 35.42% with a contact time of 30 days. The decline in the retention time of going to 20 different kinds of component aliphatic and aromatic identified two types, and achieved the highest degraded hydrocarbon component after contact for 25 days. Conclusion, Bacillus subtilis strain BAB-1684 can degrade aliphatic and aromatic components of waste SMB. The optimum point analysis of indicators reached on a contract period of 25 days

scholarly journals Leachability Of Arsenic From Wastes Of Arsenic Removal Units Using Modified Toxicity Characteristic Leaching Procedure

1970 ◽  
Vol 6 ◽  
pp. 19-26 ◽  
Author(s):  
Md Shafiqul Islam ◽  
Md Abdullah Al Mamun ◽  
Md Nazmul Islam
Keyword(s):  
Arsenic Removal ◽  
Arsenic Concentration ◽  
Solid Content ◽  
Toxicity Characteristic Leaching Procedure ◽  
Ph Values ◽  
Waste Sludge ◽  
Before And After ◽  
Sludge Waste ◽  
Pattern Comparison ◽  
Leaching Procedure

The present study evaluated the leaching of arsenic from sludge/waste of seven SONO filters that were operated in Rajarampur of Chapai Nawabganj district. For this, Toxicity Characteristic Leaching Procedure (TCLP) test was performed. To understand actual leaching of arsenic, a Simulated Natural Column (SNC) that is comparable to natural mature landfill was devised. Total arsenic concentration (AsT) was measured by HG-AAS. The studied arsenic waste/sludge, having 7.0-9.2% solid content, were alkaline in nature (pH values of 7.9-8.7) and had arsenic and iron concentrations of 4.54-5.50 and 480-1039 mg kg-1 respectively. The TCLP test reveals that 6.4-19.4% (average 14%) of arsenic was leached from the waste (average leachate AsT before and after TCLP were 5.04 and 0.71 mg kg-1 respectively). After 102 days of continuous operation in SNC, AsT in the leachate was found to be 0.223 mg L-1, although initial AsT was 0.350 mg L-1. It was observed that AsT in SNC leachate increased up to 54 days (corresponding to 1.741 mg L-1) and then decreased in reciprocal quadratic pattern. Comparison shows that TCLP underpredicts 14.2% of arsenic leaching than that of SNC. Since leachate AsT in both methods did not exceed the USEPA regulated level of 5 mg L-1, the studied waste/sludge was not hazardous. DOI: http://dx.doi.org/10.3329/jles.v6i0.9716 JLES 2011 6: 19-26

A MULTICOMPONENT OIL SPILL MODEL FOR DISSOLVED AROMATIC CONCENTRATIONS

1995 ◽  
Vol 1995 (1) ◽  
pp. 49-53 ◽  
Author(s):  
Henrik Rye
Keyword(s):  
Oil Spill ◽  
Water Mass ◽  
Polyaromatic Hydrocarbons ◽  
Carbon Number ◽  
Food Chains ◽  
Advection Equation ◽  
Marine Life ◽  
Aromatic Components ◽  
Vertical Velocity Profile ◽  
As Effects

ABSTRACT When considering the consequences of an oil spill accident, not all oil components are equally harmful to marine life. Some components are more harmful than others, especially the aromatic components. The polyaromatic hydrocarbons (the PAHs) may be accumulated in food chains, while the monoaromatics dissolve much faster into the water than other components. A model was therefore developed that separates the behaviors of different components of hydrocarbon release. The oil is divided into 20 different classes with increasing carbon number within the range C4 to C55. Within each class, the hydrocarbons are divided further into 5 subsets (n-alkanes, cycloalkanes, aromatics, naphthenes, and resins). The model then keeps track of the fate of each of the components (loss by evaporation, dissolution, or as droplets; or remaining in the slick) during an actual spill event. After calculating the amount of aromatics dissolved into the water, the actual concentrations are then computed by numerically solving a diffusion-advection equation. Vertical and horizontal turbulence in the water mass are included, as well as effects from variations in the vertical velocity profile. The paper outlines the approach chosen, and provides examples of some results.

scholarly journals The potential of yeasts from the oil-contaminated soil and mangrove rhizosphere for degrading crude oil

2019 ◽  
Vol 20 (7) ◽  
Author(s):  
NUR HIDAYATUL ALAMI ◽  
LUTHFI LAILATUL MAULIDIYA ◽  
N D KUSWYTASARI ◽  
ENNY ZULAIKA ◽  
MAYA SHOVITRI
Keyword(s):  
Soil Moisture ◽  
Crude Oil ◽  
Contaminated Soil ◽  
Statistical Tests ◽  
Gravimetric Method ◽  
Plate Count ◽  
Microbial Culture ◽  
Oil Degradation ◽  
Degradation Rates ◽  
Crude Oil Degradation

Abstract. Alami NH, Maulidiya LL, Kuswytasari ND, Zulaika E, Shovitri M. 2019. The potential of yeasts from the oil-contaminated soil and mangrove rhizosphere for degrading crude oil. Biodiversitas 20: 1833-1838. Bioremediation of crude oil contaminated soil eventually depends on the activities of microorganisms to degrade contaminants. Bioaugmentation, through the addition of microbial culture to contaminated soil, can be used to enhance degradation rates. This research aimed to determine the effect of yeast formulations isolated from the oil-contaminated soil and mangrove rhizosphere to degrade crude oil and evaluate the most effective yeast formulation and incubation timefor crude oil degradation. This research was conducted by subculturing yeast in the slant agar medium, screening hydrocarbonoclastic yeast in crude oil- Bushnell Hass Mineral Salt (BHMS) medium, biodegradation test, measuring the total cell number with Total Plate Count (TPC), Total Petroleum Hydrocarbon (TPH) test with the gravimetric method, and measuring soil moisture content. The design of the research was Completely Randomized Factorial Design with 3 replications. Data were analyzed quantitatively by using statistical tests for TPC and TPH, while a descriptive qualitative test analyzed soil moisture. The result showed that yeast formulation and incubation time affected crude oil degradation. An effective yeast consortium for oil degradation is T20 consortium with an incubation period of 30 days, which result in 72.26 % oil degradation.

scholarly journals Investigation of the possibilities of dewatering sewage sludge by the method of electroosmosis in order to prevent land littering

2021 ◽  
Vol 937 (4) ◽  
pp. 042065
Author(s):  
A O Kholudeneva
Keyword(s):  
Sewage Sludge ◽  
Negative Impact ◽  
Wastewater Sludge ◽  
Technical Solution ◽  
Sludge Dewatering ◽  
Variable Parameters ◽  
Industrial Enterprises ◽  
Waste Sludge ◽  
Sludge Waste ◽  
Series Of Experiments

Abstract Wastewater sludge from industrial enterprises is disposed of at disposal sites. This leads to a negative impact on the soil cover. The well-known methods of dehydration of moisture-containing materials have been studied. The chemical composition of sewage sludge was investigated. A technical solution for reducing the volume of wastewater sludge formation is considered on the example of cardboard and paper production. An electroosmotic installation is proposed. To study the process of sludge dewatering, a series of experiments was carried out on the installation with variable parameters of the voltage between the electrodes. A model of the particle velocity in the medium under study was presented. It has been proven that with the help of an electroosmotic device, up to 70% of moisture is effectively removed from the volume of waste sludge waste. This makes it possible to significantly reduce their volumes, reduce areas for possible or temporary placement and reduce the environmental load on the environment.

Management of hydroxide sludge waste using hygroscopic gravimetric method and physico-chemical characterization

2020 ◽  
Vol 27 ◽  
pp. 3021-3027
Author(s):  
Azeddine Fantasse ◽  
El Khadir Lakhal ◽  
Ali Idlimam ◽  
Mohamed Kouhila ◽  
Fatiha Berroug ◽  
...  
Keyword(s):  
Gravimetric Method ◽  
Chemical Characterization ◽  
Physico Chemical ◽  
Sludge Waste

Petroleum Sludge as Raw Material for Cement Clinker Production

2018 ◽  
Author(s):  
Ali Benlamoudi ◽  
Aeslina Abdul Kadir ◽  
Mohamed Khodja
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Cement Clinker ◽  
Complete Elimination ◽  
Free Lime ◽  
Cement Production ◽  
Petroleum Sludge ◽  
Sludge Waste ◽  
Clinker Production

The objective of this study is to investigate the performance of incorporating petroleum sludge waste as raw materials into the cement clinker production. The burnability and the structural analysis of the produced clinker were studied. The results showed that the addition of petroleum sludge into the clinker matrices improved the burnability of the clinker by lowering the free lime content. Moreover, 2.5% and 5% of this waste was effective and did not affect the quality of the cement clinker negatively. This study, which is the first to investigate the incorporation of petroleum sludge into cement production, provides also a complete elimination of this waste from the environment.

Helping to support threatened marine life

Nature ◽  
2020 ◽  
Vol 578 (7795) ◽  
pp. 482-482
Author(s):  
Josie Glausiusz
Keyword(s):  
Marine Life
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