In-system Overflow Treatment Technologies Offer Cost-Effective Opportunities to Protect Water Quality

2015 ◽  
Vol 2015 (1) ◽  
pp. 1-16
Author(s):  
J Fitzpatrick ◽  
S Eisner ◽  
S Goris ◽  
J Hutchins ◽  
C O’Bryan ◽  
...  
Keyword(s):  
Water Quality ◽  
Cost Effective ◽  
Treatment Technologies

Using Bayesian network models to incorporate uncertainty in the economic analysis of pollution abatement measures under the water framework directive

2005 ◽  
Vol 5 (6) ◽  
pp. 95-104 ◽  
Author(s):  
D.N. Barton ◽  
T. Saloranta ◽  
T.H. Bakken ◽  
A. Lyche Solheim ◽  
J. Moe ◽  
...  
Keyword(s):  
Water Quality ◽  
At Risk ◽  
Economic Valuation ◽  
Pollution Abatement ◽  
Network Models ◽  
Cost Effective ◽  
Bayesian Belief Networks ◽  
Probabilistic Interpretation ◽  
Belief Networks ◽  
Benefit Cost Analysis

The evaluation of water bodies “at risk” of not achieving the Water Framework Directive's (WFD) goal of “good status” begs the question of how big a risk is acceptable before a programme of measures should be implemented. Documentation of expert judgement and statistical uncertainty in pollution budgets and water quality modelling, combined with Monte Carlo simulation and Bayesian belief networks, make it possible to give a probabilistic interpretation of “at risk”. Combined with information on abatement costs, a cost-effective ranking of measures based on expected costs and effect can be undertaken. Combined with economic valuation of water quality, the definition of “disproportionate cost” of abatement measures compared to benefits of achieving “good status” can also be given a probabilistic interpretation. Explicit modelling of uncertainty helps visualize where research and consulting efforts are most critical for reducing uncertainty. Based on data from the Morsa catchment in South-Eastern Norway, this paper discusses the relative merits of using Bayesian belief networks when integrating biophysical modelling results in the benefit-cost analysis of derogations and cost-effectiveness ranking of abatement measures under the WFD.

Monitoring effluent quality in hypertrophic wastewater reservoirs using remote sensing

1996 ◽  
Vol 33 (8) ◽  
pp. 23-29 ◽  
Author(s):  
I. Dor ◽  
N. Ben-Yosef
Keyword(s):  
Water Quality ◽  
Theoretical Model ◽  
Principal Component ◽  
Cost Effective ◽  
Operational Parameters ◽  
Effluent Quality ◽  
Optical Images ◽  
Routine Monitoring ◽  
Cost Effective Method ◽  
Wastewater Quality

About one hundred and fifty wastewater reservoirs store effluents for irrigation in Israel. Effluent qualities differ according to the inflowing wastewater quality, the degree of pretreatment and the operational parameters. Certain aspects of water quality like concentration of organic matter, suspended solids and chlorophyll are significantly correlated with the water column transparency and colour. Accordingly optical images of the reservoirs obtained from the SPOT satellite demonstrate pronounced differences correlated with the water quality. The analysis of satellite multispectral images is based on a theoretical model. The model calculates, using the radiation transfer equation, the volume reflectance of the water body. Satellite images of 99 reservoirs were analyzed in the chromacity space in order to classify them according to water quality. Principal Component Analysis backed by the theoretical model increases the method sensitivity. Further elaboration of this approach will lead to the establishment of a time and cost effective method for the routine monitoring of these hypertrophic wastewater reservoirs.

scholarly journals A cost-effective algae-based biosensor for water quality analysis: Development and testing in collaboration with peasant communities

2021 ◽  
pp. 101479
Author(s):  
Cecilia Prudkin-Silva ◽  
Esteban Lanzarotti ◽  
Lucía Álvarez ◽  
María Belén Vallerga ◽  
Matías Factorovich ◽  
...  
Keyword(s):  
Water Quality ◽  
Cost Effective ◽  
Quality Analysis ◽  
Water Quality Analysis ◽  
Peasant Communities

scholarly journals Reduction of Microbial Contamination in Drinking Water using Flocculant Settling

2012 ◽  
Vol 8 ◽  
pp. 34-37
Author(s):  
Arshad Ali ◽  
Hashim Nissar Hasim ◽  
Ashfaq Ahmad ◽  
Intikhab Ahmad Qureashi
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Microbial Contamination ◽  
Industrial Effluent ◽  
Cost Effective ◽  
Water Shortage ◽  
Treatment Technique ◽  
Reliable Technique ◽  
Energy And Environment ◽  
Cost Effective Treatment

Pakistan is subjected to rapid water shortage due to different social and environmental problems. Moreover, the drinking water is being contaminated at an alarming rate that is mostly due to the discharge of untreated domestic and industrial effluent and agricultural run-off. Therefore, this study was designed to evaluate the water quality problems of the subject area and to determine a cost effective treatment technique. The main objective was to determine the removal efficiency of microbial contamination using flocculant settling. The main pollutants identified by conducting water quality tests are arsenic, fluoride, nitrates and microbial contamination. The maximum concentration of arsenic, fluoride, nitrates and microbial contamination were observed as 12ppb, 2.2mg/L, 26mg/L and 84 colonies/100mL, respectively. During discrete settling tests performed in a 12cft column, it was noticed that the removal of microbial contamination corresponding to a detention time of 225min is 26.7% only. While working on different coagulants, it was observed that the optimum alum, lime and magnesium dosage for the removal of microbial contamination is 31.5mg/L, 10.5mg/L and 27mg/L respectively. The final results of the study suggest that the use of lime as a coagulant to improve the quality of water in terms of microbial contamination is an effective and reliable technique, both in terms of its treatability performance and cost-effectiveness, which was noticed to be 77.7%.DOI: http://dx.doi.org/10.3126/hn.v8i0.4909Hydro Nepal: Journal of Water, Energy and Environment Issue No. 8, 2011 JanuaryPage: 34-37Uploaded date: 17 June, 2011

Microbe Associated Phytoremediation Technology for Management of Oil Sludge

2015 ◽  
pp. 1-28 ◽  
Author(s):  
Anil Kumar ◽  
Monika Chandrabhan Dhote
Keyword(s):  
Polyaromatic Hydrocarbons ◽  
Research Work ◽  
Chemical Properties ◽  
Cost Effective ◽  
Oil Sludge ◽  
Sludge Disposal ◽  
Physico Chemical ◽  
Treatment Technologies ◽  
Petroleum Refineries ◽  
Mutagenic Effects

Environmental contamination due to petroleum compounds is a serious global issue. Oil /petroleum refineries produce huge amount of oil sludge during drilling, storage, transport, refining which spoil soil and ground water resources. Such activities release different compounds viz. alkane, mono- polyaromatic hydrocarbons (PAH), asphaltene, resins and heavy metals. Due to physico-chemical properties, PAHs are one of most targeted compounds as they are highly persistent, carcinogenic, and have mutagenic effects on ecosystem. Such problems of PAHs drag researcher's attention to find some reliable and cost effective solution for oil sludge disposal management. Since last few decades, extensive research work has been carried out on various methods for treatment of oil sludge. In recent years, microbial assisted phytoremediation treatment technologies are being studied since these are reliable and cost effective for field applications. Here, we have discussed about combined eco-friendly technology of plant and microbe(s) to treat oil sludge for its better management.

Technological Interventions in Management of Hg Contaminated Water

2018 ◽  
pp. 126-140
Author(s):  
Vidushi Abrol ◽  
Sharada Mallubhotla ◽  
Sundeep Jaglan
Keyword(s):  
Human Health ◽  
Cost Effective ◽  
Industrial Wastes ◽  
Mercury Contamination ◽  
Contaminated Water ◽  
Treatment Techniques ◽  
Innovative Methods ◽  
Technological Interventions ◽  
Treatment Technologies ◽  
Ancient Times

Rising cases of environmental mercury hazards has led to a need for cost-effective mercury treatment techniques. Extensive use of mercury from ancient times has resulted in water contamination that may require remediation. Mercury contamination is tedious to treat and may pose a risk to human health and the environment. To deal with this threat of mercury contamination, industrial wastes and wastewaters containing mercury requires treatment for its removal and immobilization. This chapter provides a synopsis of the availability, performance, and technologies for management of mercury in water. It covers the innovative methods to treat the mercury contamination like biosorption. In this chapter, the technological aspects available for the mercury treatment technologies are reviewed. It describes the theory, design, and operation of the technologies; provides information on commercial availability and use; and includes data on performance, where available.

Bacterial Remediation of Phenolic Compounds

Biotechnology ◽  
2019 ◽  
pp. 1910-1943
Author(s):  
Veena Gayathri Krishnaswamy
Keyword(s):  
Phenolic Compounds ◽  
Industrial Revolution ◽  
Marine Ecosystem ◽  
Research Work ◽  
Cost Effective ◽  
Real Problem ◽  
Comprehensive Information ◽  
Treatment Technologies ◽  
Biological Methods ◽  
Micro Organisms

Environmental pollution has been an irrefutable fact of life for many centuries; but it has become a real problem, since the start of the industrial revolution. Discharge of these toxic compounds without treatment results in serious health risks to humans and the marine ecosystem. Several physical, chemical and biological methods have been employed for the remediation of the phenolics. Bioremediation is identified as the most efficient, cost effective and eco-friendly ways for treatment of phenolic compounds. This article is a comprehensive review on the sources of phenolic compounds, their hazards, and their fate once released into the environment; the treatment technologies employed and bioremediation of these compounds using both non-extremophlic and extremophilic organisms. The review, throws light on the enzymes involved in the remediation of phenolic compounds, highlights the importance of extremophilic organisms and biological treatment of phenol containing industrial wastewaters. Such comprehensive information on the research work performed for the remediation of phenolic compounds provide ways to explore the role played by micro organisms in the remediation of phenolic compounds, which could be applied in the remediation of phenol /contaminated sites even under extreme conditions.

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