Integrated water quality and environmental cost-benefit modelling for the management of the River Tame

1999 ◽  
Vol 39 (4) ◽  
pp. 213-220 ◽  
Author(s):  
Bob Crabtree ◽  
Matt Hickman ◽  
Dave Martin
Keyword(s):  
Water Quality ◽  
Cost Benefit ◽  
Weather Conditions ◽  
Environmental Cost ◽  
Northern Portion ◽  
Wet Weather ◽  
The 1960S ◽  
The Uk ◽  
Water Quality Impact

In the UK, the River Tame catchment covers an area of about 1,400 km2 and forms the northern portion of the Birmingham Conurbation. In the 1960s, wet weather conditions in Birmingham could result in the total depletion of oxygen in the River Trent below the Tame confluence. Construction of a system of purification lakes at Lea Marston, below the major polluting discharges, was completed in the early 1980s. Today, the operation of the Lea Marston Lakes significantly improves the quality of the Tame. However, wet weather pollution episodes in the Tame continues to have a severe impact on water quality in the Trent and put major fisheries at risk. This paper reports on the outcome of an integrated environmental impact and cost-benefit assessment modelling study into the future strategic management of the Lea Marston Lakes. The study demonstrated that the Lea Marston Lakes provide an economically justifiable method for reducing the water quality impact of the Birmingham conurbation and as a result will continue to be operated.

Water quality of Tampa Bay, Florida : wet-weather conditions, October 1971

1975 ◽  
Author(s):  
Carl R. Goodwin ◽  
Joseph S. Rosenshein ◽  
D.M. Michaelis
Keyword(s):  
Water Quality ◽  
Weather Conditions ◽  
Tampa Bay ◽  
Wet Weather

Deterioration in the Water Quality of Groundwater in Some Municipal Water Extraction Plants in Finland

1979 ◽  
Vol 10 (2-3) ◽  
pp. 171-190
Author(s):  
Pertti Lahermo ◽  
Jouko Parviainen
Keyword(s):  
Water Quality ◽  
Urban Areas ◽  
Water Extraction ◽  
Groundwater Extraction ◽  
Dissolved Solids ◽  
Municipal Water ◽  
The 1960S

In this study the changes in the quality of groundwater are described on the basis of material collected at some groundwater extraction plants situated mainly in urban areas. The causes of the marked increase in the content of dissolved solids are evaluated from the 1960s onwards.

scholarly journals Water Quality of the Trstionica River (Bosnia and Herzegovina)

2020 ◽  
Vol 69 (7-8) ◽  
pp. 371-376
Author(s):  
Šuhreta Delibašić ◽  
Jasna Huremović ◽  
Sabina Žero ◽  
Sabina Gojak-Salimović
Keyword(s):  
Water Quality ◽  
Bosnia And Herzegovina ◽  
Limit Of Detection ◽  
Weather Conditions ◽  
Ion Exchange Resin ◽  
World Health ◽  
Mean Values ◽  
Significant Difference ◽  
Health Organization

The present study was conducted to investigate the water quality of the Trstionica River, Bosnia and Herzegovina. The physicochemical properties (temperature, pH, conductivity, total solids after evaporation at 105 °C), content of metals (calcium (Ca), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), sodium (Na), nickel (Ni), lead (Pb) and zinc (Zn)), and anions (chloride (Cl–), and phosphate (PO43–)) were determined in water samples collected at seven locations during two sampling periods: unstable weather conditions (precipitation), and stable weather conditions (without precipitation). There was a significant difference in the content of individual parameters in the river water depending on the sampling time. For determination of metals concentrations, which were below the limit of detection, a preconcentration method using an ion-exchange resin was applied. The metals concentrations during the rainy day were in the order Ca > Mg > Na > Fe > Cu > Zn > Pb > Mn with mean values of 343, 6.03, 1.94, 0.18, 0.20, 0.03, 0.02, 0.01 mg dm–3, respectively, and during stable weather conditions: Ca > Mg > Na > Cu > Fe > Mn > Zn with mean values of 288, 7.62, 2.38, 0.11, 0.10, 0.01, 0.01 mg dm–3, respectively. Cd, Cr, and Ni concentrations were below limit of detection in both cases. Obtained values were compared with World Health Organization (WHO) regulations. The results showed that the Trstionica River in the investigated part of the stream meets most of the parameters required by the regulations. The correlation between analysed parameters was assessed, as well. Based on the calculated water quality index values, the water of Trstionica River falls into the category of excellent water.

A Man for All Processes

2020 ◽  
pp. 3-12
Author(s):  
Samuel Issacharoff
Keyword(s):  
Judicial Review ◽  
Due Process ◽  
Cost Benefit ◽  
The State ◽  
The Us ◽  
Limited Power ◽  
The 1960S ◽  
The Uk ◽  
Legal Understanding ◽  
Modern Era

The American due process revolution that began in the 1960s was slow to reach Britain. The limited power of judicial review and the removal of procedure from the academic study of law left the field oddly barren just as it sprung to life in defining the relation between citizens and the state in the US. Almost single-handedly, Professor Zuckerman sought to reframe the legal understanding of procedural order in the UK. His use of a cost-benefit matrix to define the governmental interest in a particular course of conduct, and his use of the same metric to weigh the costs to private parties and the risks of legal error were transformative. Beginning with his work on the incentives to error created by the Mareva injunction, and continuing to his crusade over the exorbitant costs of British procedure, the result was a scholarly transformation of a field largely abandoned since the time of Bentham. This chapter chronicles the efforts of one far-sighted scholar to drag British procedure into the modern era.

Project CARE: reducing wet weather overflows to improve beach water quality

2002 ◽  
Vol 46 (6-7) ◽  
pp. 35-46 ◽  
Author(s):  
J. Heijs ◽  
D. Wilkinson ◽  
E. Couriel
Keyword(s):  
Water Quality ◽  
Treatment Plant ◽  
Cost Benefit ◽  
Public Health Perspective ◽  
Performance Targets ◽  
North Shore ◽  
The People ◽  
Wet Weather ◽  
Beach Water Quality ◽  
Beach Pollution

The people who live in North Shore City (New Zealand) consider the beaches as their greatest asset. Following public outcry on frequent beach pollution caused by wet weather sewer overflows, Project CARE commenced in 1998 to plan the improvements to the city's separated wastewater and stormwater systems to protect the streams and beaches, particularly from a public health perspective. The investigation included building hydrological and hydraulic models to represent the wastewater and stormwater systems and a receiving waters model to simulate the impacts on the beaches. These models were later used to explore options for improvement. It was found that North Shore City has a very leaky wastewater system that is under capacity. The resulting wet weather overflows (12 per year on average) are the most important contributor to the problem although stormwater pollution alone is big enough to cause problems (at a smaller magnitude). A cost optimisation model (iterative process using performance/cost relationships) was then used to assist in identifying the optimal set of improvement works (storage, repair and increased capacity, wastewater treatment plant) to meet different performance targets and to cater for growth up to the year 2050. Cost Benefit analyses, looking at improvements in system performance and water quality, show diminishing returns for performance levels better than 2 overflows per year. The total costs that meet this target are estimated at almost NZ$300M (US$135M).

The impacts of discharges from two combined sewer overflows on the water quality of an urban watercourse

1997 ◽  
Vol 36 (8-9) ◽  
pp. 195-199 ◽  
Author(s):  
R. Mulliss ◽  
D. M. Revitt ◽  
R. B. E. Shutes
Keyword(s):  
Water Quality ◽  
Storm Event ◽  
Combined Sewer Overflows ◽  
Ecosystem Classification ◽  
Combined Sewer ◽  
Total Ammonia ◽  
Sewer Overflows ◽  
Urban Watercourse ◽  
The Uk

The impacts of combined sewer overflows and surface water outfalls on receiving water quality are assessed by comparing dry weather flow and storm event concentrations of dissolved oxygen, BOD, total and unionised ammonia, pH, dissolved copper and total zinc with those recommended by the River Ecosystem classification guidelines for freshwaters in the UK. The deteriorating conditions during wet weather are identified by water quality falling below the RE2 category for all monitored pollutants, other than dissolved copper, and reaching the most grossly polluted condition for BOD and total ammonia.

Seine Centre, the new flexible Colombes sewage treatment plant - from theory to practice

2001 ◽  
Vol 44 (2-3) ◽  
pp. 49-56
Author(s):  
C. Paffoni
Keyword(s):  
Wastewater Treatment ◽  
Flow Rate ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Weather Conditions ◽  
Theory To Practice ◽  
Wet Weather ◽  
Environmental Demands

Upon the filling of the Seine Centre sewage plant in May 1998, the SIAAP commissioned its first wastewater treatment plant adapted for handling part of the large amounts of rain period surplus water: its flow rate ranges from 2.8 m3/s during dry weather to 12 m3/s in wet weather conditions. Four operational configurations for treating 240,000 m3/day during dry weather, with different quality objectives, and three configurations for treating the rain period surplus water were designed. Immediately upon filling of the plant, however, the operators had to devise innovative configurations for meeting new discharge standards. This paper will aim at demonstrating (considering a major achievement the various aspects of which will be explained) the SIAAP's will to conform in real time, through a dynamic management of its facilities, to the variation of the priorities in the environmental demands, while preserving the quality of the adjacent owners' immediate environment.

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