sewage Articles
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Diatoms for assessing the ecological condition of inland freshwater bodies
The ecological responses of diatoms to pollution and nutrient enrichment, caused by domestic and municipal sewage, in the five fresh water ponds have been examined. It was observed that diatoms were completely absent in P3 and some species were also absent in P1 and P2. Similarly, diatom diversity was lower in P1 and P2 than in P4 and P5. However, diatom abundance was higher in P4. The Biological ...
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Aerobic wastewater treatment processes history and development synopsis
This book is an overview of the development of aerobic waste water treatment and influences which shaped this development. The historical development of sewage treatment and the subsequent emergence of aerobic biological treatment methods is investigated from the early nineteenth century to the present day. In addition, the earlier historical background, up to the late ...
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Aerobic wastewater treatment processes history and development synopsis
A Synopsis by the Author This book is an overview of the development of aerobic waste water treatment and influences which shaped this development. The historical development of sewage treatment and the subsequent emergence of aerobic biological treatment methods is investigated from the early nineteenth century to the present day. In addition, the earlier historical background, up to the ...
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Removal of selected steroid estrogens in a sewage treatment plant with Unitank process in Nanjing, China
This study monitored estrone (E1), 17b-estradiol (E2) and 17a-ethynylestradiol (EE2) concentrations monthly for one year in the influent, effluent and various unit processes of a Unitank-based sewage treatment plant in Nanjing, China. The results showed that the concentrations of E1, E2 and EE2 in influents were 32.4–89.0 ng∙L –1 , 19.4–78.0 ng∙L –1 and 12.3–45.0 ng∙L –1 , respectively. ...
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Smart sensoring for sustainable river cruises - Case Study
Smart sensoring | Find out how smart sensoring is used to ensure sustainable river cruising. Protecting the environment and its touristic value with our biological sewage treatment plant and asset management. Popular river cruising River cruises are popular. More than half a million passengers enjoy the slowly changing landscapes and unique travel experiences of European river cruise vacations ...
By PureBlue
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Preparation and application of a new composite chitosan flocculant
A new composite chitosan flocculant has been prepared, and its optimal dosage in the treatment of sewage established. It significantly improves the removal of chemical oxygen demand, suspended solids and aluminium ions from water. Compared with the traditional flocculant polyaluminium chloride, the cost of the composite flocculant was lower and it produced less pollution.Keywords: chitosan, ...
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Ayalon concrete channel, Tel-Aviv, Israel - Case Study
In Israel, the long, dry summer is followed by a short rainy winter season causing high-flow, high-velocity streams and flooding often occurs. Serving as the divider for the north and south lanes of the Tel-Aviv Freeway, the Ayalon channel was designed to handle the surging waters of the Ayalon River during Tel-Aviv’s winter rainy season. Since the channel's original design, the city has ...
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Partitioning and availability of sediment-bound metals following final sewage effluent release to a lowland river
A simple partitioning scheme was used to assess the partitioning and behaviour of copper, cadmium, iron, lead and manganese within the surface waters and sediments of the River Yare, Norfolk, UK, following the discharge of final effluent to the water course from municipal sewage treatment works (STW). Sewage effluent discharges were shown to increase metal concentrations and complexation ...
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Material and equipment are key in meeting practical and regulatory sewage treatment requirements
When it comes to marine sewage treatment, a lot has changed over the past several decades. At the same time, a lot has not changed—the underlying microbiology of sewage treatment, for example. In 1973, St. Louis Ship Division of Pott Industries occupied the same ground on which lames Eads built ironclads for the Union Navy during the American Civil War. We were our own guinea pigs, ...
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Water pollution emergency 0f explosion in port of Tianjin - case study
Sample collection site: explosion central point outer drainage channel Water outlet of Tianjin port sewage treatment works Port of Tianjin surrounding sea area Collect water sample every hour, 24hours ongoing ...
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Research on Sludge Disposal and Utilization Ways in Sewage Treatment Plant
At present, environmental protection and pollution control have become important tasks for the sustainable and healthy development of society. Among the various contents of environmental protection, the sludge disposal of sewage treatment plants is a very important link. Sludge is an important resource that can be recycled and used. The scientific and effective treatment of sludge has a positive ...
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Sewage of Tripoli: a review of the current situation and of the future planning
Tripoli represents a major urban area in Lebanon with about 350,000 people in the city, which may swell by additional 100,000 when the city surrounding population is counted. It used to be a dominant agricultural region, but the last three decades witnessed a rapid development of urban construction. The goal of this paper was to present the current situation regarding the sewage disposal, ...
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Effectiveness of urban wastewater treatment policies in selected countries: an EEA pilot study
Water pollution caused by wastewater persists despite three decades of effort to clean up European surface waters and despite the requirements of the Urban Waste Water Treatment Directive (UWWTD). Several EU Member States have yet to satisfy the requirements of the directive. A European Commission report released in 2004 noted that several countries had failed to designate sensitive areas and ...
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Study on water pollution along the Kukshet Lakes of Nerul, Navi Mumbai, India with special reference to pollution due to heavy metals
Monitoring and assessment of fresh water has become an environmental concern due to the contamination by human kind, thereby decreasing the suitability of the fresh water. The Kukshet Lake, which is the study area of the present investigation receives domestic raw sewage from surrounding habitation; so also the activities like cattle washing, cloth washing, bathing, religious activities like idol ...
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Pollution impact assessment along Vasai Creek of Mumbai: measurement of physico–chemical parameters
The rapid urbanisation and industrialisation in Vasai City of Mumbai with improper environmental planning has resulted in discharge of sewage and industrial wastes in to the Vasai Creek thereby greatly affecting its physico–chemical properties. The present investigation to study the physico–chemical parameters of creek water for the two assessment years 2009 to 2010 and 2010 to 2011 suggests the ...
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The solutions of domestic sewage treatment
The source of domestic sewage? Domestic sewage is the waste water discharged from the daily life of residents, mainly from residential buildings and public buildings, such as residences, institutions, schools, hospitals, shops, public places and toilets of industrial enterprises. The pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrates, fat, urea, ...
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Development and application of biogas project for domestic sewage treatment in rural China: opportunities and challenges
The biogas project for domestic sewage treatment (BPDST) is considered a promising facility for wastewater management in rural areas of China. This paper explores previous experimental works, cost analysis, and BPDST structure and design based on Chinese literature. Opportunities for developing decentralized or neighborhood-based BPDSTs include fulfilling Millennium Development Goals (MDGs) ...
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Quality of inputs is important for product performance
Water scarcity and pollution are two issues of great concern in our country today and, with our ever-increasing pop-ulation, the problem is getting worse. The need of the hour is the on-site sewage treatment for re-use. We talk about procurement and related issues to Shahaveer Jamshedji, Managing Partner, Biowater Treatments Systems LLP. Range of products Biowater Treatment Systems LLP is into ...
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Remediation of sewage and industrial effluent using bacterially assisted floating treatment wetlands vegetated with Typha domingensis
This investigation reports the quantitative assessment of endophyte-assisted floating treatment wetlands (FTWs) for the remediation of sewage and industrial wastewater. Typha domingensis was used to vegetate FTWs that were subsequently inoculated with a consortium of pollutant-degrading and plant growth-promoting endophytic bacteria. T. domingensis, being an aquatic species, holds excellent ...
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Variations of nitrogen transport in the mainstream of the Yellow River, China
Three sections along the mainstream of the Yellow River were chosen as sites for monitoring the concentration variations of nitrogen species. First, the nitrogen in the water was mainly dissolved and dominated by nitrate–nitrogen. Second, the nitrogen concentrations in the middle stream were much higher than those in the upper stream, and close to those in the lower stream. Third, the nitrogen ...
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