scholarly journals Evaluation of the Diethylene Glycol Regeneration rate in Gas Fields Based on Indirect Measurements

2021 ◽  
Vol 2096 (1) ◽  
pp. 012120
Author(s):  
A N Krasnov
Keyword(s):  
Diethylene Glycol ◽  
Treatment Plant ◽  
Treatment Efficiency ◽  
Long Distance ◽  
Indirect Measurements ◽  
Regeneration Rate ◽  
Gas Treatment ◽  
Measurement Results ◽  
Gas Fields

Abstract Gas dehydration in the field is a mandatory procedure before long-distance transportation. In Russia, gas is dried by absorption using diethylene glycol (DEG). Upon absorbing moisture from the raw gas, DEG is regenerated and recycled to dehydration, the quality of which largely depends on the regeneration rate. This indicator is not measured directly at the dehydration plant, and regeneration is controlled discretely based on the periodic laboratory analysis results. The paper describes a virtual analyzer determining the DEG concentration in a real-time mode based on the temperature and DEG consumption measurement results. The regression mathematical model underlying the virtual analyzer has been built based on experimental data obtained at the Yamburg gas condensate field. As part of the gas treatment plant APCS, a virtual analyzer improves the treatment efficiency and reduces the DEG consumption.

scholarly journals WASTEWATER TREATMENT EFFICIENCY CASE OF OXYLAG WASTEWATER TREATMENT PLANT, MHAYA (MOROCCO)

2017 ◽  
Vol 5 (3) ◽  
pp. 167-173
Author(s):  
Bouhlal A. ◽  
Chahlaoui A. ◽  
Bouzid J. ◽  
Farhaoui M.
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Domestic Wastewater ◽  
Treatment Efficiency ◽  
High Purification ◽  
Nominal Capacity ◽  
The Subject ◽  
Pollution Removal

The wastewater from the urban commune of Mhaya (Morocco) was rejected directly into Ben Kazza river without treatment. This situation caused a widespread, massive, varied and insidious pollution of the environment. A wastewater treatment plant (WWTP) has been constructed in 2010 in order to preserve the nature surrounding the center. Called Oxylag, the plant has a nominal capacity of 6000 Equivalent Inhabitants. It is based on intensive treatment and it is considered as pilot and unique in Morocco. The treatment is consisting on three basins ventilated by insufflation of artificial air and a basin of finishing. The present study aim is the assessment of the purification performance of this plant during 2012, through the analysis of the pollution parameters (COD, BOD5 and TSS), which is the subject of the Moroccan standards on the quality of domestic wastewater defined by the decree Number 1607-06 of 25 July 2006. The results show a high purification performance in terms of carbon pollution removal (93% for BOD5, 79% for COD and 64% for TSS).

scholarly journals Avaliação da influência da precipitação pluviométrica na qualidade do tratamento de esgoto tipo filtro biológico e decantação secundária

2020 ◽  
Vol 13 (6) ◽  
pp. 2728
Author(s):  
Diogo Botelho Correa de Oliveira ◽  
André Edson Lima de Andrade Silva ◽  
Marco Aurélio Calixto Ribeiro de Holanda ◽  
Willames De Albuquerque Soares
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Metropolitan Region ◽  
Treatment Efficiency ◽  
Statistical Confidence ◽  
Domestic Effluent ◽  
Two Populations

No sistema separador absoluto as águas pluviais e o efluente doméstico são transportados por canalizações distintas. Quando existem interferências entre esses dois sistemas impactos diretos encaminhados ao processo de tratamento de esgoto. Na estação de tratamento de Peixinhos, umas das principais da Região Metropolitana do Recife, PE, avaliou-se separadamente dias considerados secos e dias chuvosos, analisando parâmetros próprios para estes tipos de estudo: vazão de entrada, Demanda Bioquímica de Oxigênio, Demanda Química de Oxigênio, concentração de Óleos e graxas e a eficiência de tratamento. O aumento médio entre as vazões foi de 75 L.s-1, cerca de 19% da vazão de projeto. A DBO, DQO, OG tiveram sias concentrações reduzidas devido ao aumento de fluxo e a eficiência do tratamento foi reduzida em aproximadamente 5%, com diferenças significativas entre as duas populações, segundo teste estatístico de intervalo de confiança.  Evaluation of the influence of rainfall on the quality of biological sewage treatment and secondary decantation A B S T R A C TIn the absolute separator system, rainwater and domestic effluent are transported through different pipes. When there are interferences between these two systems, direct impacts are sent to the sewage treatment process. At the Peixinhos treatment plant, one of the main ones in the Metropolitan Region of Recife, PE, days considered dry and rainy days were evaluated separately, analyzing specific parameters for these types of studies: inlet flow, Biochemical Oxygen Demand, Chemical Demand of Oxygen, concentration of oils and greases and treatment efficiency. The average increase between flows was 75 L.s-1, about 19% of the project flow. BOD, COD, OG had serious concentrations reduced due to increased flow and treatment efficiency was reduced by approximately 5%, with significant differences between the two populations, according to the statistical confidence interval test.Keywords: efficiency of sewage treatment plant, urban drainage, BOD, COD.

scholarly journals Monitoring of condensate flows with a view to improving the quality of the odorant at U-30 of the OGPP

2019 ◽  
Vol 9 (6) ◽  
pp. 4667-4670
Keyword(s):  
Treatment Plant ◽  
Hydrate Formation ◽  
Raw Material ◽  
Processing Plant ◽  
Material Source ◽  
Gas Treatment ◽  
Regeneration Unit ◽  
Condensate Processing ◽  
Broad Fraction

Currently, mercaptans are produced synthetically both in the domestic and foreign industry, which makes them cost high. The formation fluid of the Orenburg and Karachaganak fields processed at the Orenburg GPP is a rich raw material source of low-boiling natural mercaptans. Currently, the composition of the odorant is impermanent. It differs in the limits of boiling and the mixture ratios of natural mercaptans. The composition of the synthesized odorant includes a mixture of mercaptans from C1 to C4 and higher. The presence of methylmercaptan is undesirable as it reduces the intensity of the gas smell. In addition, the presence of heavy mercaptans from C4 and higher is also undesirable as they tend to hydrate formation. Since only C2-C3 mercaptans are to be present in the odorant, there arose a problem of removing or reducing the unwanted mercaptans. To solve this problem, an analysis of the flow of condensates entering the U-30 was carried out in order to obtain a quality odorant. The quality of the produced odorant was improved by the exception and selection of the optimal ratio of incoming condensate flows. The research is aimed at improving the quality of the odorant derived at the U-30 facility of the Orenburg GPP from light condensate fractions, where there is used a mixture of internal condensates from facilities U-741 (installation of condensate stabilization BX-04), U-374 (fractionation department of gas treatment plant E-18), U-40 (propane blocks, condensate of dehydration), U-11 (regeneration unit glagola, condensate of dehydration) after stabilizing at U-09 (hydrocarbon condensate processing plant), and also the absorbent from U-90 (plant for production of broad fraction of light hydrocarbons).

scholarly journals Operating household wastewater treatment plants in the light of binding quality standards for wastewater discharged to water bodies or to soil

2017 ◽  
Vol 32 (1) ◽  
pp. 31-39 ◽  
Author(s):  
Bartosz Jawecki ◽  
Katarzyna Pawęska ◽  
Marcin Sobota
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Quality Standards ◽  
Adverse Impact ◽  
Treatment Efficiency ◽  
Legal Requirements ◽  
Household Wastewater

Abstract The study presents the legal requirements concerning the quality of wastewater discharged to waterbodies and to soil after treatment in household wastewater treatment plants located in agglomerations or outside them. The procedure of stopping the operation of a household treatment plant that doesn’t meet the statutory wastewater treatment efficiency was presented. The decision ordering to stop the use of a household wastewater treatment plant has to be preceded by a decision ordering to take measures to limit its adverse impact on the environment. The clarification procedure has to determine the adverse impact on the environment in a doubtless manner and it has to be reflected in the documentation. The assessment of adverse impact should take into account the binding standards of use of the environment. Stopping the operation of a household wastewater treatment plant may result in issuing a decision ordering the user to connect to the sanitary sewage system.

scholarly journals Gas Turbine Compressor Unit Application in Sour Gas Field Operation

1986 ◽  
Author(s):  
Klaus D. Schmidt ◽  
Werner Scholz ◽  
Hartmut Schlüter
Keyword(s):  
Treatment Plant ◽  
Primary Energy ◽  
West Germany ◽  
Gas Field ◽  
Gas Treatment ◽  
Supply Pressure ◽  
Gas Compression ◽  
Gas Turbine Compressor ◽  
Gas Fields ◽  
Sour Gas

The use of sour gas as primary energy requires constant supply pressure and flow to the gas treatment plant as well as to the pipeline distribution network and consumers. During exploitation of gas fields, when the well head pressure and flow decreases, production continues at increased cost. Application of gas compression equipment is required for continuation of supply pressure and flow to the sour gas treatment plant and to customer connection flanges. The design and layout of sour gas compression equipment has to guarantee high operational availability and reliability for continuous duty. To properly select equipment for sour gas applications, including the compressor, its driver and auxiliary and ancillary systems, the specific requirements and standards have to be taken into consideration. This paper will report about a situation in the sour gas fields in the northern part of West Germany and will describe the design objectives, station layout and equipment selection for a sour gas compressor station including operating experiences.

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operation

2008 ◽  
Vol 37 (2) ◽  
Author(s):  
Maciej Walczak
Keyword(s):  
Water Quality ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Treatment Plants ◽  
Plant Operation ◽  
Treated Sewage ◽  
Microbiological Parameters ◽  
Microbial Indices

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operationThis paper reports the results of studies of microbiological changes in the water quality of the Vistula and Brda rivers after the opening of sewage treatment plants in Bydgoszcz. The study involved determining the microbiological parameters of water quality. Based on the results obtained, it was found that the quality of the water in both rivers had improved decidedly after the opening of the plants, although an increased number of individual groups of microorganisms was found at the treated sewage outlet from one of the plants.

Microbial Quality of Human Wastes and Treatment Plant Effluent

1986 ◽  
Vol 18 (7-8) ◽  
pp. 257-265 ◽  
Author(s):  
K. Kawamura ◽  
M. Kaneko
Keyword(s):  
Staphylococcus Aureus ◽  
Vibrio Cholerae ◽  
Treatment Plant ◽  
Microbial Quality ◽  
Chlorination Process ◽  
Fecal Streptococci ◽  
Human Wastes ◽  
Micro Organisms ◽  
Spore Forming Bacteria

In order to evaluate the microbial quality of human wastes and effluents from treatment processes, the microbial flora of samples was examined. Total coliforms, fecal coliforms and fecal streptococci were used as indicator micro-organisms, and Vibrio cholerae non O-1, Salmonella, Staphylococcus aureus and Welchii (Clostridium perfrigens) were selected as pathogenic organisms. Salmonella was detected in only the water samples from the night soil treatment plant, while Staphylococcus aureus was detected in the night soil and the samples from the night soil purification tanks. Vibrio cholerae non 0-1 was not detected in any samples, but Welchii existed in almost all samples. Generally, the density levels and distribution patterns of the indicator micro-organisms were similar to those in the raw wastewaters. The microbial flora was not changed remarkably after the primary sedimentation process and the biological treatment process. After the chlorination process, total colonies, spore-forming bacteria, Welchii, moulds and fecal streptococci could survive, and spore-forming bacteria formed the majority of the total colonies in the well-chlorinated effluents. Welchii at the level of 103/100 ml can be used as the indicator micro-organism to ensure a sanitary safe discharge, because it can survive at the level of 103−104/100 ml even if other indicators and pathogenic micro-organisms are inactivated completely by the chlorination process.

Relationships between Population Dynamics and Operating Parameters in an Activated Sludge-Plant by Statistical Analysis

1992 ◽  
Vol 25 (4-5) ◽  
pp. 399-400 ◽  
Author(s):  
L. Cingolani ◽  
M. Cossignani ◽  
R. Miliani
Keyword(s):  
Population Dynamics ◽  
Statistical Analysis ◽  
Activated Sludge ◽  
Treatment Plant ◽  
Operating Conditions ◽  
Statistical Analyses ◽  
Operating Parameters ◽  
Aerobic Treatment

Statistical analyses were applied to data from a series of 38 samples collected in an aerobic treatment plant from November 1989 to December 1990. Relationships between microfauna structure and plant operating conditions were found. Amount and quality of microfauna groups and species found in activated sludge proved useful to suggest the possible causes of disfunctions.

Barcelona's water supply improvement: the brine collector of the Llobregat river

1994 ◽  
Vol 30 (10) ◽  
pp. 221-227 ◽  
Author(s):  
Jordi Martín-Alonso
Keyword(s):  
Drinking Water ◽  
Surface Water ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Salt Mine ◽  
Water Production ◽  
Public Work ◽  
Drinking Water Production ◽  
Llobregat River

The Llobregat is a 156 km long river, which supplies 35% of the Barcelona's drinking water needs from the Sant Joan Despí Water Treatment Plant. Since the establishment of the Salt Mine Works in the Llobregat basin in 1923, a progressive salinization of the water sources has been recorded. The operation of the Brine Collector, as a public work carried out by Aigües de Barcelona (AGBAR), started in 1989; it enabled a very significant improvement in the quality of the surface water used for drinking-water production.

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