The Treatment of Oil in Refinery Wastewater in South East Asia

1986 ◽  
Vol 18 (3) ◽  
pp. 17-21 ◽  
Author(s):  
R. A. Radevsky ◽  
D. A. Burt
Keyword(s):  
Pollution Control ◽  
Low Cost ◽  
Treatment Plant ◽  
Oil Industry ◽  
Effluent Treatment ◽  
Pollution Levels ◽  
Effluent Treatment Plant ◽  
Treatment Facilities ◽  
Correct Application

In response to more severe pollution control regulations and from a desire to reduce pollution levels, oil industry installations are having to re-examine their effluent treatment facilities. Options for upgrading the quality of effluent discharged include: improvements in water management to decrease volumes of effluent produced in processes; modifications to existing effluent treatment plant both in performance and operating procedures by the installation of new components or the replacement of individual units; and the installation of completely new effluent treatment facilities using the latest technology. In most existing plants considerable increases in efficiency can be brought about at relatively low cost by the correct application of a range of options. Where new installations are being constructed valuable lessons may be learned by examining the problems that are occurring in plants already in operation. Improvements may thus be made on existing designs.

Treatment of wastewater from the potato chips and snacks manufacturing industry

1997 ◽  
Vol 36 (2-3) ◽  
pp. 329-335 ◽  
Author(s):  
Ioannis Hadjivassilis ◽  
Stanislav Gajdos ◽  
Dusan Vanco ◽  
Michael Nicolaou
Keyword(s):  
Mass Flux ◽  
Manufacturing Industry ◽  
Industrial Effluent ◽  
Treatment Plant ◽  
Potato Chips ◽  
Effluent Treatment ◽  
Effluent Treatment Plant ◽  
Industrial Effluent Treatment ◽  
Better Than

A small industrial effluent treatment plant has been designed and installed for the treatment of wastewater from a potato chips and snacks factory. The total daily flow rate to the plant was 115 m3/d, while the influent COD mass flux was 838.7 kg/d and the BOD mass flux was 626.7 kg/d. The applied method of treatment is a simple upflow anaerobic reactor with internal settling and gas collection units, followed by aerobic treatment based on the activated sludge process with diffused air system. The quality of the treated water is better than requested and the overall treatment process efficiencies are 99.2% for COD removal and 99.5% for BOD5 removal. The results of the operation of the plant during the first five months are examined and described in this paper.

The Efficiency of a Biological Activated Sludge Effluent Treatment Plant with Extended Aeration

1988 ◽  
Vol 20 (1) ◽  
pp. 65-72 ◽  
Author(s):  
Rurik Skogman ◽  
Reino Lammi
Keyword(s):  
Activated Sludge ◽  
Suspended Solids ◽  
Treatment Plant ◽  
Forest Products ◽  
Effluent Treatment ◽  
Chlorinated Phenols ◽  
Forest Products Industry ◽  
Effluent Treatment Plant ◽  
Closed Systems ◽  
Treating Effluent

The requirements imposed on the Finnish forest products industry by the water authorities have focused on the reduction of BOD and suspended solids in the wastewaters. The industry has tried to comply with these requirements, first through internal measures such as process changes and closed systems. When these have not been sufficient, external treatment has been resorted to. The Wilh. Schauman Company in Jakobstad has chosen activated sludge with extended aeration from among the available methods for treating effluent. The plant has operated since the beginning of 1986 with extremely good results. In addition to the reduction of BOD and suspended solids, there has been a marked decrease of chlorinated phenols. Chlorinated substances with higher molecular weight are also removed during the process.

Soft Drinks Industry Wastewater Treatment

1992 ◽  
Vol 25 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Larbi Tebai ◽  
Ioannis Hadjivassilis
Keyword(s):  
Biological Treatment ◽  
Industrial Effluent ◽  
Treatment Plant ◽  
Soft Drinks ◽  
Effluent Treatment ◽  
Production Lines ◽  
Effluent Treatment Plant ◽  
Industrial Effluent Treatment ◽  
Effluent Characteristics ◽  
Industry Wastewater

Soft drinks industry wastewater from various production lines is discharged into the Industrial Effluent Treatment Plant. The traditional coagulation/flocculation method as first step, followed by biological treatment as second step, has been adopted for treating the soft drinks industry wastewaters. The performance of the plant has been evaluated. It has been found that the effluent characteristics are in most cases in correspondence with the requested standards for discharging the effluent into the Nicosia central sewerage system.

VERMICOMPOSTING TECHNOLOGY FOR STABILIZING THE SEWAGE SLUDGE FROM RURAL WASTE WATER TREATMENT PLANTS

2008 ◽  
Vol 3 (1) ◽  
Author(s):  
V. Lina Cardoso ◽  
C. Esperanza Ramírez ◽  
E. Violeta Escalante
Keyword(s):  
Rural Communities ◽  
Sewage Sludge ◽  
Low Cost ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Microbiological Quality ◽  
Fecal Coliforms ◽  
Nitrogen And Phosphorus ◽  
Sludge Management

There are problems associated with sludge management in small treatment plants (<10 L/s) located in rural communities, due to costly conventional technology for sludge stabilization. Many of these plants have only sludge drying beds. Mexican Institute of Water Technology has proposed developing suitable low-cost technologies, one of which is vermicomposting a biodegradation system using earthworms of the species Eisenia foetida (earthworm) which stabilize sludge and reduce its pathogenicity. The objective of this work is to present two case studies where vermicomposting technology has been applied in Mexico. The first study corresponds to a plant where 4.8 m3/month of sludge are produced; for these wastes, a vermicomposting system was built and installed. The second study is a treatment plant where 9 m3/month of sludge are produced; experimental tests were conducted with sludge and water hyacinth and a vermicomposting system was designed. The vermicomposts were analyzed using parameters defined by Mexican standards. In regards to stabilization, TVS was reduced by 38% and the microbiological quality of the vermicompost was Class A and B, with a reduction in fecal coliforms and Helminth eggs according to NOM-004-SEMARNAT-2002. A CRETI (Corrosivity, Reactivity, Explosivity, Toxicity and Ignitability) analysis (NOM-052-SEMARNAT-2005) was used to show that the process reduced the concentration of releasable sulfides. The agronomic quality of the vermicompost exhibited a high content of organic matter comparable to many organic manures and high content of nutrients such as nitrogen and phosphorus. It is concluded that it is possible to improve the conditions of sewage sludge management in small plants of rural communities with a minimum investment (less than $10,000.00 USD) and with a requirement of a minimum area of 60 to 70 m2 for a production of less than 9 m3/month of dehydrated sludge (80% humidity).

LCA of a Representative Municipal Effluent Treatment Plant

2019 ◽  
pp. 235-248
Author(s):  
Saurabh N. Joglekar ◽  
Pratik D. Solankey ◽  
Sachin A. Mandavgane ◽  
Bhaskar D. Kulkarni
Keyword(s):  
Treatment Plant ◽  
Effluent Treatment ◽  
Municipal Effluent ◽  
Effluent Treatment Plant

scholarly journals Occupational inhalation injury by Hydrogen Sulfide causing multi organ failure –A case study

2019 ◽  
Vol 7 (2) ◽  
pp. 113-115 ◽  
Author(s):  
Karishma Shamarukh ◽  
- Mohammad Omar Faruq ◽  
Nasrin Jahan ◽  
Amina Sultana ◽  
Ridwan Naim Faruq
Keyword(s):  
Hydrogen Sulfide ◽  
Troponin I ◽  
Treatment Plant ◽  
Inhalation Injury ◽  
Effluent Treatment ◽  
Effluent Treatment Plant ◽  
Chest X Ray ◽  
Brain Ct Scan ◽  
Serious Injuries

Hydrogen sulfide is a notorious agent known to cause serious injuries in the occupational field. We are going to discussa case of a 20 years old male working in a effluent treatment plant in Savar, Bangladesh who accidentally entered thefume room and was exposed to the toxic gas. He lost consciousness and was brought to our care from a local hospitalafter endotracheal intubation condition. He was found in state of unconsciousness grade III on admission to our ICU.His brain CT scan revealed diffuse cerebral edema. Chest X-ray revealed finding suggestive of diffuse pneumonitis.Cardiology evaluation suggested Toxic cardiomyopathy as his high sensitive Troponin I was very high on admission (2037ng/L). Supportive care was given in the form of mechanical ventilation, antibiotics, anticonvulsant andanti-ischemic medications. Patient regained consciousness on day 10 after admission and gradually improvedclinically. By the end of the month of stay in hospital he was significantly improved. Bangladesh Crit Care J September 2019; 7(2): 113-115

scholarly journals Detection of New Delhi metallo-beta-lactamase enzyme gene bla NDM-1 associated with the Int-1 gene in Gram-negative bacteria collected from the effluent treatment plant of a tuberculosis care hospital in Delhi, India

2020 ◽  
Vol 2 (6) ◽  
Author(s):  
Amit Aggarwal ◽  
Manpreet Bhalla ◽  
Khan Hena Fatima
Keyword(s):  
Treatment Plant ◽  
Effluent Treatment ◽  
Diffusion Method ◽  
Care Hospital ◽  
Beta Lactamase ◽  
Genotypic Resistance ◽  
Content Type ◽  
Link Type ◽  
Carbapenem Resistant ◽  
Effluent Treatment Plant

Background. Organisms possessing the bla NDM-1 gene (responsible for carbapenem resistance) with a class-1 integron can acquire many other antibiotic resistance genes from the community sewage pool and become multidrug-resistant superbugs. In this regard, hospital sewage, which contains a large quantity of residual antibiotics, metals and disinfectants, is being recognized as a significant cause of antimicrobial resistance (AMR) origination and spread across the major centres of the world and is thus routinely investigated as a marker for tracing the origin of drug resistance. Therefore, in this study, an attempt has been made to identify and characterize the carbapenem-resistant microbes associated with integron genes amongst the organisms isolated from the effluent treatment plant (ETP) installed in a tertiary respiratory care hospital in Delhi, India. Methods. One hundred and thirty-eight organisms belonging to Escherichia , Klebsiella , Pseudomonas and Acinetobacter spp. were collected from the incoming and outgoing sewage lines of the ETP. Carbapenem sensitivity and characterization was performed by the imipenem and imipenem-EDTA disc diffusion method. Later DNA extraction and PCR steps were performed for the Int-1 and bla NDM-1 genes. Results. Of the 138 organisms, 86 (62.3 %) were imipenem-resistant (P<0.05). One hundred and twenty-four (89.9 %) organisms had one or both of the genes. Overall, the bla NDM-1 gene (genotypic resistance) was present in 71 % (98/138) of organisms. 53.6 % (74/138) organisms were double gene-positive (bla NDM-1 + Int-1), of which 40 were producing the metallo-beta-lactamase enzyme, making up almost 28.9 % (40/138) of the collected organisms. Conclusion. The current study strengthens the hypothesis that Carbapenem resistant organisms are in a high-circulation burden through the human gut and hospital ETPs are providing an environment for resistance origination and amplification.

scholarly journals Chromium bioremediation potential of indigenous Bacillus pumillus isolated from river water of Bangladesh

2021 ◽  
Vol 38 (1) ◽  
pp. 27-30
Author(s):  
Sangita Ahmed ◽  
Rakibul Hasan ◽  
Sumaiya Aziz Khan ◽  
Razu Ahmed
Keyword(s):  
River Water ◽  
Animal Health ◽  
Treatment Plant ◽  
Effluent Treatment ◽  
Potential Reduction ◽  
Polluted River ◽  
Whole Cells ◽  
Effluent Treatment Plant ◽  
Rapid Industrialization ◽  
Chromium Tolerance

Bangladesh has achieved rapid industrialization in recent years. However, many of these industries lack proper effluent treatment plant and discharge untreated effluent laden with different heavy metals into the major rives that surround these industries, affecting the environment as well as human and animal health. Aiming to develop a sustainable effluent treatment plant, a heavy metal tolerant Bacillus pumillus isolated from polluted river water of Bangladesh was studied for its chromium bioremediation potential. Reduction of hexavalent chromium using the Sdiphenylcarbazide (DPC) method showed that whole cells of the Bacillus pumillus reduced 89.5%, 75%, 73% and 45% of 1.0, 2.5, 5 and 10mg/L Cr(VI) to Cr(III), respectively. This bacterium reduced 100% of 20mg/L Cr(VI) to Cr(III) within 8 hours, in a growth associated pattern. A 20kb plasmid was detected in this Bacillus pumillus, and loss of this plasmid did not cause complete impairment of chromium tolerance capacity, though the tolerance efficiency was reduced. The Bacillus pumillus studied in the current study therefore shows its potential to develop a sustainable chromium bioremediation method. Bangladesh J Microbiol, Volume 38, Number 1, June 2021, pp 27-30

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