scholarly journals Costs and optimisation options for monitoring of indirect dischargers

Author(s):  
T. Franz

Abstract Monitoring of indirect and industrial dischargers, respectively, makes an important contribution to the safe and environmentally sound operation of wastewater systems. As a result of local framework conditions, there is a wide range of monitoring practices across Germany. In a benchmarking project, ten sewerage operators and monitoring bodies representing large German cities have collected data on their work and discussed their practices. The results show that the extent of monitoring is between 244 and 1,457 monitoring points per sewer network (given as 15th and 85th percentile). The median value of the specific expense is 689 EUR per monitoring point and year. In relation to the total wastewater fee volume, the median expense is 0.71%. The sub-process ‘sampling’ was examined more closely. By means of detailed process mapping and regression analyses, it can be shown that on-site activities and tours have the largest share of working time (total of 72%) and thus the greatest leverage in optimisation measures. Various examples are given.

2021 ◽  
Vol 10 (12) ◽  
pp. 2627
Author(s):  
Pierre-Edouard Fournier ◽  
Sophie Edouard ◽  
Nathalie Wurtz ◽  
Justine Raclot ◽  
Marion Bechet ◽  
...  

The Méditerranée Infection University Hospital Institute (IHU) is located in a recent building, which includes experts on a wide range of infectious disease. The IHU strategy is to develop innovative tools, including epidemiological monitoring, point-of-care laboratories, and the ability to mass screen the population. In this study, we review the strategy and guidelines proposed by the IHU and its application to the COVID-19 pandemic and summarise the various challenges it raises. Early diagnosis enables contagious patients to be isolated and treatment to be initiated at an early stage to reduce the microbial load and contagiousness. In the context of the COVID-19 pandemic, we had to deal with a shortage of personal protective equipment and reagents and a massive influx of patients. Between 27 January 2020 and 5 January 2021, 434,925 nasopharyngeal samples were tested for the presence of SARS-CoV-2. Of them, 12,055 patients with COVID-19 were followed up in our out-patient clinic, and 1888 patients were hospitalised in the Institute. By constantly adapting our strategy to the ongoing situation, the IHU has succeeded in expanding and upgrading its equipment and improving circuits and flows to better manage infected patients.


1982 ◽  
Vol 50 (1) ◽  
pp. 139-146 ◽  
Author(s):  
W. Stephen Royce

A linear modeling technique was used to identify valid behavioral referents of molar heterosocial skill ratings in both men and women. Videotapes of the heterosocial interactions of 30 men and 30 women representing a wide range of skill were shown to untrained peers who made molar heterosocial skill ratings and supplied lists of the behavioral cues they believed to be useful in discriminating skillful and unskillful subjects. The most widely endorsed cues were then scored for their rates of occurrence in the target subjects' interactions, and multiple regression analyses were used to construct linear models of behavioral referents for the molar heterosocial skill ratings. Highly skilled men were those who kept their gaze up, asked questions, and used appropriate hand gestures. Highly skilled women were those who kept their gaze up, made eye contact, and avoided speaking too softly.


2014 ◽  
Vol 955-959 ◽  
pp. 175-179
Author(s):  
Lin Ying ◽  
Li Na ◽  
Yu Yang Zhou ◽  
Yin Jun

Silica nanoparticles (Si NPs) have a wide range of uses in semiconductors, battery cathode material, and high power laser source materials. However, Si NPs would flow into the wastewater treatment inevitably, and then potentially harmful interactions can occur between nanoparticles and wastewater systems, especially in denitrification process. The present study was aimed to investigate the effects of Si NPs on nitrate nitrogen removal under anaerobic conditions by employing activated sludge. Our data demonstrates that Si NPs had positive effects on denitrification at the beginning and did not display any measurable effect on nitrite nitrogen removal at the concentration of 100 mg/L and below. The denitrification process was elucidated by using the first-order reaction kinetics equation. This study provided useful data for understanding the effects of Si NPs on wastewater treatment.


2019 ◽  
Vol 4 (4) ◽  
pp. 111-138 ◽  
Author(s):  
Frank Othengrafen ◽  
Meike Levin-Keitel

Even though the turn to practice is widely accepted in the field of urban planning, the practices of planners are empirically largely unexplored. Looking at the daily routines and practices of urban planners thus allows a deeper insight into what planning is, and how planning practices are related to innovation and transformation. To do so, we start from the assumption that behaviour is a constellation of practices, including certain activities, a set of choices and actions, patterns of behaviour or forms of interaction that is organised in a certain space or context by common understandings and rules. By conducting an online survey among planners in medium-sized German cities, we first identified a wide range of planning practices and activities in general. In a second step, we conducted a statistical cluster analysis resulting in six types of planners: (1) the ‘local-specific analysts,’ (2) the ‘experienced generalists,’ (3) the ‘reactive pragmatists,’ (4) the ‘project-oriented planners,’ (5) the ‘compensatory moderators,’ and (6) the ‘innovative designers.’ Each cluster has specific practices and activities, linked to characteristic value-sets, role interpretations and self-perceptions that might help explain the differences with regard to innovation and transformation. From the identified six groups or clusters of planners, only two clusters more or less consequently aim at innovation, experimentation and new approaches. One cluster is dedicated to collaborative practices whereas traditional practices predominate in three clusters at least, mainly because of legal requirements. This is the result of an increasing ‘formalisation’ of land-use planning, making planners focus on technical and formal practices, and, at the same time, lead to the reduced ‘attention’ to and implementation of conceptual approaches or ‘necessary’ transformative practices, including proactive approaches and strategic coordination with regard to sustainable urban development, but also comprising experiments, real labs or social innovations.


2018 ◽  
Vol 24 (1) ◽  
pp. 2-22 ◽  
Author(s):  
James Rowell

Purpose The purpose of this paper is twofold: to identify and explore the reasons why organisations decide to use process mapping software (PMS) facilities in support of business process management (BPM); and to determine the objectives set by senior management for its introduction, and understand extent to which organisations achieve expected benefits. Design/methodology/approach This paper uses an exploratory research design and investigates the elements of organisations’ objectives, implementation and evaluation of using PMS. The research data were collected through semi-structured interviews with business managers responsible for the implementation of PMS. The respondent organisations were selected from a range of industries who were using the same software. Findings The results of the research show that organisations do set objectives for using PMS, relevant to a wide range of business, operational and strategic objectives, dependant on the needs of the organisation. Additionally, the results show that some gain further advantages post-implementation, based on their PMS experience. Regarding explicit evaluation of their investment, organisations attempt this to a very limited extent; whilst recognising a broad a range of “softer” benefits. Research limitations/implications This exploratory research has been conducted on a small range of organisations, all using the same software, therefore the results cannot be clearly generalizable. The research suggests organisations are making effective decisions regarding adopting PMS, further research on the evaluating its benefits could support better decision-making in the future. Practical implications The practical implications of this research are for decision-makers in organisations recognising and understanding the strategic/operational benefits that could be achieved by implementing a software system for BPM. Originality/value Whilst the use of process mapping of organisation’s operations is widespread the benefits achieved by organisations are only partially understood. Knowledge of the strategic impact of BPM is limited, as reported by numerous researchers. This research attempts to explore the context of organisations using such software, and point towards further approaches to its investigation.


2000 ◽  
Vol 30 (6) ◽  
pp. 921-929 ◽  
Author(s):  
Anders Fries ◽  
Dag Lindgren ◽  
Cheng C Ying ◽  
Seppo Ruotsalainen ◽  
Katarina Lindgren ◽  
...  

Site index was calculated for 78 experimental plantations in western Canada and northern Finland and Sweden, representing a wide range of site environments where lodgepole pine (Pinus contorta Dougl. var. latifolia Engelm.) is considered as a potential afforestation species. The plantations and provenances belong to the International Union of Forest Research Organizations' international provenance testing program, and estimates of site index (projected 50-year height) were based on height growth of recommended provenances. The estimated site indices were used in regression analyses with temperature data and estimated soil fertilities to predict the change in forest production due to a warmer climate, which may follow an expected rise in atmospheric CO2. The influence of temperature was strong and considerably stronger in northern Finland and Sweden than in Canada. The relationships differed between the two continents and between sites located north of 56°N and south of that latitude. Soil fertility had a small but significant influence. Estimates of increases in site index and potential productivity in different scenarios for increases in temperature sum and average July temperatures are given.


2008 ◽  
Vol 35 (1) ◽  
pp. 25-53 ◽  
Author(s):  
MONIKA PAWŁOWSKA ◽  
LAURENCE B. LEONARD ◽  
STEPHEN M. CAMARATA ◽  
BARBARA BROWN ◽  
MARY N. CAMARATA

ABSTRACTThe aim of this study was to uncover factors accounting for the ability of children with specific language impairment (SLI) to learn agreement morphemes in intervention. Twenty-five children with SLI who participated in a six-month intervention program focused on teaching third person singular -s or auxiliary is/are/was showed a wide range of use of the target morpheme after intervention. Regression analyses showed that age and two factors expected to be related to agreement – the use of noun plural -s and subject/verb constructions prior to intervention – significantly predicted progress in the acquisition of agreement morphemes. In contrast, the pretreatment use of morphemes hypothesized to be unrelated to agreement was not a significant predictor of progress. The results indicate that the ability of children with SLI to learn agreement morphemes relies on their prior ability to use noun plural and subject/verb constructions.


2014 ◽  
Vol 580-583 ◽  
pp. 2398-2402 ◽  
Author(s):  
Vladimir Orlov ◽  
Alexey Andrianov

Operative and planned rehabilitation of old pipe networks, including water disposal systems, is a relevant objective of modern city. It is especially difficult to make pipeline reconstruction works in large cities with high construction area density, transport moving intensity, also full of multifunctional both underground and above-ground infrastructure. All these factors set a lot of restrictions for open excavation methods of pipelines repair and reconstruction. That is the reason why trenchless technologies are becoming more popular among the engineers. A wide range of trenchless techniques provides people with convenient method of fast and effective reconstruction processes in comparison with durable and inconvenient open excavation. This fact leads to a necessity of creating a strategic planning of pipeline rehabilitation. This article presents how to operate the first step of such strategic planning – choosing the priority pipe section for sewer network renovation. The most convenient way for choosing one specific section from a great range is to use a program package based on mathematical algorithm that takes into account a quantity of different factors. This paper presents such a program created by authors and describes its interface, date input and processing.


2017 ◽  
Vol 20 (1) ◽  
pp. 60-76
Author(s):  
Slavomir Bucher

The paper deals with regional differentiation of human resources and its determinants identified by selected indicators of human potential. The selection of correct and relevant indicators has a key role in the identification and measurement of human potential. The aim of the study is to outline causal and determinant relationship (the relation and the level of dependence) in the spatial differentiation of human resources in Europe and approaches to their interpretation. The main purpose of this paper is to analyze the link between human potential and quality or inequality of life and its effect on population from a demographic viewpoint. Methods of correlation and regression analyses were applied. A wide range of the most important and most often used human potential assessment indicators based on a basic systemic classification of human potential will also be presented. Although the first glance the quality of human resources situation in Europe might seem relatively compact, deeper analysis showed that there are quite significant regional differences. Our results show that set of specific condition a constant or moderately growing human capital may aggravate the consequences of population ageing rather than alleviate them. The important results of this study include recognition of the existence of several easily manageable methods and ways of measuring demographic and/or socio-economic solutions to the challenges posed by quality of human resources in Europe.


Author(s):  
Wendy E. R. Thome ◽  
Anne C. Basso ◽  
Sukhvinder K. Dhol

As more Alberta oil and gas fields become depleted, attention is being given to development of economically and environmentally sound abandonment procedures. The objective of this study was to identify and assess residual internal and external contaminants associated with abandoned pipelines, particularly those to be abandoned in place. Circumstances which might increase the risk of contaminant release, and other issues relating to residual pipeline contaminants, were also identified. It was found that there are thousands of different substances which could potentially be associated with abandoned pipelines. A wide range in the potential quantities of residual contaminants was also found. Of the issues identified, the effectiveness of pipeline pigging and cleaning procedures prior to abandonment was the most critical determinant of the potential quantities of residual contaminants. However, a number of trace contaminants, such as PCBs (Polychlorinated Biphenyls) and NORMs (Naturally Occurring Radioactive Materials) may remain after thorough cleaning. A brief review of the legislation and regulations from a number of jurisdictions shows that pipeline abandonment has only recently become an issue of concern. Regulations specific to abandonment are lacking, and more genera] regulations and guidelines are being applied on a contaminant-specific basis, or in terms of waste disposal requirements.


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