The last book covering a part of this subject has come four years ago (Vymazal, J., and Kropfelova, L., 2008. Wastewater Treatment in Constructed Wetlands; Springer, New Yark) and the one prior to that six years ago (Crites R. W., Middlebrooks, E. O., and Reed, S. C., 2006, Natural Wastewater Treatment Systems; CRC Press, Boca Raton). Both are excellent treatises but neither covers systems based on 'nutrient film technique' even as it is in this segment that most spectacular advances are currently occurring. Moreover, the state-of-the-art in all systems has advanced significantly since these books came out. The proposed book would, therefore, be much more comprehensive as well as up-to-date.
Covers a topic of very great contemporary relevance
Will have a world-wide catchment
First of its kind since several years
It has a huge market waiting
Written by authors with established track record
Adds to the book's market appeal
High on substance
Its appeal will endure
Written in a lucid, clear, and compact style
Will please and satisfy the reader
Supported by tables, graphs, half-tones and references
Will enhance the book's visual appeal and user-friendliness
Disinfection By-Products in Water Treatment describes new government regulations related to disinfection by-products. It explains the formation of microorganism by-products during water treatment and the methods employed to control them.
Uganda's Nakivubo swamp has been receiving wastewater from Kampala for over 30 years and consists of a floating root mat. It's potential to remove nutrients and pathogens from wastewater in a sustainable way, while maintaining ecological quality and biodiversity, is investigated in this work.
Plants are subjected to a variety of abiotic stresses such as drought, temperature, salinity, air pollution, heavy metals, UV radiations, etc. To survive under these harsh conditions plants are equipped with different resistance mechanisms which vary from species to species. Due to the environmental fluctuations agricultural and horticultural crops are often exposed to different environmental stresses leading to decreased yield and problems in the growth and development of the crops. Drought stress has been found to decrease the yield to an alarming rate of some important crops throughout the globe. During last few decades, lots of physiological and molecular works have been conducted under water stress in crop plants.
After manpower, energy is the highest operating cost item for most the wastewater utilities. Over the last decade, the implementation of new technologies to meet new effluent limits and water quality standards has considerably increased energy consumption by the sector. The price of energy has also substantially increased in the same period. In North America and Europe, some utilities have reported significant increases in energy costs in recent years, and with oil prices continuing to fluctuate, further substantial increases in operating costs could be expected. Those increases will be compounded by the need to meet additional new regulations that will require energy-intensive treatment processes to achieve tight standards. High energy consumption will affect the wastewater industry worldwide and is inextricably linked to the issue of Climate Change. Through its Optimization Challenge program, the Water Environment Research Foundation (WERF) is currently participating in the Global Water Research Coalition's (GWRC) project titled Energy Efficiency in the Water Industry: A Compendium of Best Practices and Case Studies. The objective of the GWRC project is to develop a Compendium of best practice (worldwide) in the energy-efficient design and operation of water industry assets. For this project, WERF is serving the role of North America wastewater practice coordinator. Through this assignment, WERF intends to define specific recommendations regarding: * Incremental improvements in energy efficiency through optimization of existing assets and operations * More substantial improvements in energy efficiency from the adoption of novel (but proven at full scale) technologies As part of the GWRC project, WERF has developed this report summarizing existing information on well-established energy optimization/energy recovery best practices, as well as documenting a series of case studies of novel (yet full-scale proven) technologies/practices in wastewater treatment in primarily North America.
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