scholarly journals Influence of pathogenic bacterial activity on growth of Scenedesmus sp. and removal of nutrients from public market wastewater

2017 ◽  
Vol 15 (5) ◽  
pp. 741-756 ◽  
Author(s):  
A. A. Al-Gheethi ◽  
R. M. Mohamed ◽  
N. M. Jais ◽  
A. N. Efaq ◽  
Abdullah Abd Halid ◽  
...  
Keyword(s):  
Pathogenic Bacteria ◽  
Treatment Process ◽  
Kinetic Coefficient ◽  
Strong Relationship ◽  
Bacterial Activity ◽  
Removal Rates ◽  
Initial Concentration ◽  
The Public ◽  
Public Market ◽  
Survival Potential

The present study aims to investigate the influence of Staphylococcus aureus, Escherichia coli and Enterococcus faecalis in public market wastewater on the removal of nutrients in terms of ammonium (NH4–) and orthophosphate (PO43) using Scenedesmus sp. The removal rates of NH4– and orthophosphate PO43– and batch kinetic coefficient of Scenedesmus sp. were investigated. The phycoremediation process was carried out at ambient temperature for 6 days. The results revealed that the pathogenic bacteria exhibited survival potential in the presence of microalgae but they were reduced by 3–4 log at the end of the treatment process. The specific removal rates of NH4– and PO43– have a strong relationship with initial concentration in the public market wastewater (R2 = 0.86 and 0.80, respectively). The kinetic coefficient of NH4– removal by Scenedesmus sp. was determined as k = 4.28 mg NH4– 1 log10 cell mL–1 d–1 and km = 52.01 mg L–1 (R2 = 0.94) while the coefficient of PO43– removal was noted as k = 1.09 mg NH4– 1 log10 cell mL–1 d–1 and km = 85.56 mg L–1 (R2 = 0.92). It can be concluded that Scenedesmus sp. has high competition from indigenous bacteria in the public market wastewater to remove nutrients, with a higher coefficient of removal of NH4– than PO43.

Effect of Phenol on Treatment of Sewage from Channel Discharge with Biological Accelerator-Biofilm Process

2011 ◽  
Vol 243-249 ◽  
pp. 3761-3764
Author(s):  
Gai Mei Guo
Keyword(s):  
Treatment Process ◽  
Sewage Treatment ◽  
Ammonia Nitrogen ◽  
Removal Rates ◽  
Promotion Effect ◽  
Initial Concentration ◽  
Research Results ◽  
Negative Effect ◽  
Biofilm Process

The research studied enhanced treatment of sewage from discharging points of rivers by biofilm process dosing with enzyme and the effect of phenol on removal rates of the main pollution indexes, and investigated promotion effect of enzyme (including the laboratory developed compounded enzyme and the foreign composite enzyme) on treatment of sewage by biofilm process. The research results indicated that when initial concentration of phenol was 5mg/L, the removal rates of phenol, CODCrand ammonia nitrogen obviously decreased compared to no phenol added to reactor A, B and C, and the negative effect of phenol was smaller on reactor B and C than on reactor A. Moreover, enzyme had good promotion effect on biofilm process during the sewage treatment process.

Role of an architect in projects involving EPC contracts

2021 ◽  
Vol 9 (4) ◽  
pp. 01-15
Author(s):  
Adyathan Dasyapu ◽  
Greeshmika Nagubilli ◽  
Jayanth V Kutcharlapati ◽  
Hari Prasad Guntuku ◽  
Shruti S Nagdeve
Keyword(s):  
Public Sector ◽  
Private Sector ◽  
Critical Points ◽  
Large Scale ◽  
Strong Relationship ◽  
Common Type ◽  
Qualitative Approach ◽  
Related Case ◽  
The Public

Purpose: Engineering, procurement, and construction (EPC) contracts are on their way to becoming the most common type of contract used by the private sector for large-scale infrastructure projects. Every project requires a strong relationship between all of the experts participating in EPC projects and the client. This relationship must be solidly established by an architect; otherwise, the project may fail for all parties involved, including the client, contractor, lenders, government, and others. The purpose of this study is to identify if the working of the EPC contracts is favourable for the architectural profession, and to identify the way in which the working could be improved. Methodology: A qualitative approach was applied to analyze the critical points of EPC contracts based upon reviews of related case studies from the public sector and supplementary interviews with professionals in the field. Main Finding: The architect's role in an EPC contract is not crucial and is equal to other stakeholders involved in the project. Also, EPC contractors have the power to dictate the workflow of the project and hence, architects might have to compromise in terms of the design, compensation, etc. Implications: It is very important for every project to have an outcome based on each stakeholders/consultants inputs specially on larger projects, this article is a step towards understanding the role of architects under an EPC contract as the future projects will come under its purview.  Novelty: The study is done under the lens of a newly graduated architect and not as any other professional, thereby trying to develop an understanding for fresh architects.

scholarly journals In vitro anti-bacterial activity of Prosopis juliflora leafs extract against pathogenic bacteria

2017 ◽  
Vol 5 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Ali M. Badri ◽  
◽  
Mohamed I. Garbi ◽  
Ahmed S. Kabbashi ◽  
Mahmoud S. Saleh ◽  
...  
Keyword(s):  
Pathogenic Bacteria ◽  
Prosopis Juliflora ◽  
Bacterial Activity

scholarly journals Hygienic-sanitary conditions of food sold in the public market and open market in the municipality of Arapiraca-AL

2020 ◽  
Vol 12 (4) ◽  
pp. 29-43
Author(s):  
Lucineide Santos da Silva ◽  
Claudimary Bispo dos Santos
Keyword(s):  
Open Market ◽  
Check List ◽  
The Public ◽  
Public Market ◽  
Sanitary Conditions

As feiras e mercados públicos oferecem diversos produtos e serviços em um único local, revelam hábitos e manifestações culturais, sendo de grande importância sócio-econômico-cultural para o município. Porém, os alimentos muitas vezes são comercializados em condições que propiciam a contaminação por microrganismos quando não são adotadas práticas adequadas de manipulação e exposição. Sendo assim, o objetivo deste estudo foi avaliar as condições higiênico-sanitárias dos alimentos perecíveis comercializados na feira livre e no mercado público do município de Arapiraca-AL. Foram realizadas duas visitas semanais em dezembro/2018, uma visita no Mercado Público, e a outra na feira livre, que ocorre no dia de segunda-feira, localizada nas ruas próximas ao Mercado Público. Os alimentos avaliados foram frutas e hortaliças, carnes e pescados, através de um roteiro de inspeção (check-list) baseado na Resolução da Diretoria Colegiada – RDC nº 216/2004 da Agência Nacional de Vigilância Sanitária – ANVISA, cujos itens selecionados foram condições de comercialização, condições de armazenamento, condições de higiene dos manipuladores e das instalações. Na maioria dos aspectos avaliados, principalmente na feira livre, os resultados foram insatisfatórios, devido ao não cumprimento das normas vigentes. Conclui-se que a feira livre não possui estrutura mínima para que possam ser aplicadas as normas higiênico-sanitárias na venda de carnes e pescados e o mercado público apesar de ter uma melhor infraestrutura, os feirantes desrespeitam essas normas.

scholarly journals ANALISIS HASIL INVESTASI, PENDAPATAN PREMI, DAN BEBAN KLAIM TERHADAP LABA PERUSAHAAN PERASURANSIAN DI INDONESIA

2017 ◽  
Vol 5 (2) ◽  
pp. 213
Author(s):  
Sofyan Marwansyah ◽  
Ambar Novi Utami
Keyword(s):  
Linear Regression ◽  
Multiple Linear Regression ◽  
Significant Relationship ◽  
Secondary Data ◽  
Strong Relationship ◽  
Fund Raising ◽  
Analytical Technique ◽  
The Public ◽  
Investment Returns ◽  
Premium Income

Insurance is a fund raising agency sourced from the receipt of insurance premiums from the public and distributed by claims. In addition to premium receipts, the company also puts its funds in the form of investments. This aims of this paper is to analyze the investment returns, premium income, and claims expense to profit using partial correlation, determination and multiple linear regression. The methods that use to collects the data for this final task are using observation and study documentation using quantitative analysis. Analytical technique is multiple linear regression using IBM SPSS 21 software. The used data in this paper is secondary data that obtained from the website of Otoritas Jasa Keuangan. From the results of the correlation coefficient test partially obtained investment returns and premium income has a significant relationship to profit, a positive value of 0.657 and 0.737 means the relationship is strong and unidirectional whereas, claims load has a significant relationship to profit, negative value of -0.786 means strong relationship And counterclockwise, simultaneously (together) shows that investment returns, premium income, claims expenses have significant relationship to profit, and a positive value of 0.881. The result of determination coefficient test shows that there is a significant influence of 77.6% and the remaining 22.4% influenced by other factors. The regression equation formed is Y = -2,682 +  +  – 2,369 + e.

Assessing performance-use preferences through an institutional logics lens

2019 ◽  
Vol 32 (1) ◽  
pp. 2-20
Author(s):  
Benard Ngoye ◽  
Vicenta Sierra ◽  
Tamyko Ysa
Keyword(s):  
Public Sector ◽  
Performance Measurement ◽  
Institutional Logics ◽  
Content Type ◽  
The Public ◽  
Measurement Systems ◽  
Cognitive Frames ◽  
Public Market ◽  
Theoretical Predictions ◽  
Performance Measurement Systems

PurposeThe purpose of this paper is to examine the influence of shared cognitive frames, in particular, that of institutional logics, on the deployment and use of performance measurement systems (PMSs) in the public sector.Design/methodology/approachUsing novel priming techniques derived from behavioral and social psychology, three institutional logics – the public, market-managerial and professional logics – are differentially surfaced in three independent experimental groups. The influence of these primed institutional logics on performance measurement use preferences are then empirically assessed using appropriate analysis of variance techniques.FindingsContrary to theoretical predictions, the paper reveals logic congruence regarding some uses of PMSs in the public sector, and divergence regarding others. Individuals applying a public logic were more likely to propose performance measurement use for strategic planning or strategic alignment; while those applying a professional logic were more likely to propose performance measurement use for learning, compared to otherwise primed individuals.Research limitations/implicationsConsidering the sample size and the novelty of the priming tools, it is feasible that other potentially significant effects may have been missed.Originality/valueThe paper addresses a gap in literature regarding the influence of shared cognitive frames on performance measurement use in public sector organizations. The paper further presents priming techniques embedded within an experimental design as an appropriate method for the micro-level study of attitudes, preferences and judgments in the public sector.

Constraints of Time

2016 ◽  
Author(s):  
Gergely Baics
Keyword(s):  
Seasonal Cycles ◽  
Problem Of Time ◽  
Public Markets ◽  
The Public ◽  
Food Shopping ◽  
Public Market ◽  
New Yorkers

This chapter addresses the problem of time by examining the temporal geography of household provisioning. It scrutinizes the seasonal, weekly, and daily schedules of food shopping, outlining how complementary rhythms provided steady supplies to customers, while also sustaining permanent and stable trade at the public markets. The provisioning journey was structured not only by the distance one traveled to the public market but also by the conjunctures of time. Just as public markets distributed all varieties of foodstuffs to New Yorkers at a dozen privileged locations, their year-round business agglomerated food supplies of widely different seasonal cycles. Not surprisingly, seasonality first and foremost determined the frequency of residents' marketing visits.

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