Wastewater and water

Xem 1-20 trên 164 kết quả Wastewater and water
  • Before any water or wastewater can be treated, it must first be characterized. Thus, characterization needs to be addressed. Waters and wastewaters may be characterized according to their quantities and according to their constituent physical, chemical, and microbiological characteristics. Therefore, Part I is composed of two chapters: “Quantity of Water and Wastewater,” and “Constituents of Water and Wastewater.”

    pdf722p crazy_sms 10-05-2012 86 44   Download

  • Tham khảo sách 'gis applications for water, wastewater, and stormwater systems - part 1', khoa học tự nhiên, công nghệ môi trường phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf153p crazy_sms 10-05-2012 69 28   Download

  • The Third Edition of this classic reference provides readers with concise, up-to-the-moment coverage of the role of microorganisms in water and wastewater treatment. By providing a solid foundation in microbiology, microbial growth, metabolism, and nutrient cycling, the text gives readers the tools they need to make critical decisions that affect public health, as well as the practical aspects of treatment, disinfection, water distribution, bioremediation, and water and wastewater reuse.

    pdf765p vunangnhat 21-04-2015 17 8   Download

  • To fully appreciate the benefits of GIS applications consider the following hypothetical scenario. On March 10, 2004, following a heavy storm event, a sewer customer calls the Sewer Authority of the City of Cleanwater to report minor basement flooding without any property damage. An Authority operator immediately starts the GIS and enters the customer address. GIS zooms to the resident property and shows all the sewers and manholes in the area.

    pdf243p crazy_sms 10-05-2012 58 35   Download

  • Critical aspects for the wider application of ultraviolet (UV) light in drinking water treatment sometimes have been described, in spite of the success of the method as established in the field: • Absence of well-established and generally accepted design rules • Absence of a permanently active residual agent in the treated water • Suspicions of the possible photochemical formation of by-products • Possibility of revival–reactivation by repair mechanisms of irradiated organisms • Need for operational control of the permanent reliability of the technique...

    pdf168p crazy_sms 10-05-2012 67 26   Download

  • The procedures described in these standards are intended for the examination of waters of a wide range of quality, including water suitable for domestic or industrial supplies, surface water, ground water, cooling or circulating water, boiler water, boiler feed water, treated and untreated municipal or industrial wastewater, and saline water. The unity of the fields of water supply, receiving water quality, and wastewater treatment and disposal is recognized by presenting methods of analysis for each constituent in a single section for all types of waters.

    pdf541p bomtvc 20-08-2014 62 21   Download

  • European Union (EU) environmental legislation has developed over the last 30 years and comprises today some 300 legal acts and a large number of other policy documents of relevance for EU environmental policy. Section 1.2.1 of this chapter gives a general introduction to the EU forms of legislation and the principles of the EU environmental policy. The legislation related to the environmental aspects of textile processes in general, primarily the emissions to water and air, is discussed in sections 1.2 to 1.6....

    pdf243p 951628473 07-05-2012 52 17   Download

  • Electrochemistry has been used extensively in the past three decades to determine the chemical composition of environmental samples from the water column, sediments, soils, biofilms, and microbial mats.

    pdf0p taurus23 26-09-2012 37 15   Download

  • The new century has begun with some of the lowest grain prices in recent memory. From an economist’s vantage point, this is a sure sign of excess production capacity. However, there may be more here than meets the economist’s eye. Natural scientists, many of whom have contributed to this volume, see something very different. They see reason to be concerned about such issues as the overplowing of land and the overpumping of aquifers. They look at sustainable production and see a worrisome fraction of world food output being produced with the unsustainable use of land and water....

    pdf439p crazy_sms 10-05-2012 32 14   Download

  • Onsite treatment of wastewater and onsite dispersal of treated wastewater is not a new concept. Throughout the history of civilization in this country and other places in the world, onsite wastewater systems have been and will be an integral part of the overall wastewater management infrastructure. Onsite wastewater systems are here to stay and the U.S. Environmental Protection Agency (EPA) views adequately managed onsite systems as a cost-effective and long-term option for meeting public health and water quality goals, particularly in less densely populated areas....

    pdf0p crazy_sms 10-05-2012 45 13   Download

  • When I began my professional career at the University of Nebraska–Lincoln in 1979, I intended to direct my research and outreach program at the emerging field of climate impact science. It was fortuitous that a large portion of the United States, including the Great Plains, Upper Midwest, and Pacific Northwest, had recently come out of an intense but somewhat short-lived drought during 1976-1977.

    pdf402p crazy_sms 10-05-2012 26 12   Download

  • Research Reports IWMI’s mission is to improve the management of land and water resources for food, livelihoods and environment. In serving this mission, IWMI concentrates on the integration of policies, technologies and management systems to achieve workable solutions to real problems—practical, relevant results in the field of irrigation and water and land resources.

    pdf39p nhatro75 12-07-2012 36 7   Download

  • This book has been written to help professionals, students, and lay people identify the increasing number of terms in the fields of environmental engineering and science. More than 8000 terms, acronyms, and abbreviations applying to wastewater, potable water, industrial water treatment, seawater desalination, air pollution, incineration, and hazardous waste remediation have been defined. The most unique feature of this book is the inclusion of more than 3000 trademarks and brand names.

    pdf336p boy_them_yeu 03-07-2013 36 7   Download

  • Current guidelines in the three water-related areas (drinking water, wastewater and recreational water) assess quality, in microbiological terms, by measuring indicator organisms. This chapter looks at the history and examines some of the methods used to assess the microbiological quality of water, highlighting the current limitations and also possible future developments.

    pdf28p uocvong09 16-10-2015 9 2   Download

  • This study was conducted within RAND’s Public Safety and Justice program. RAND Public Safety and Justice conducts research and analysis that helps inform policymakers and communities in the areas of public safety, including law enforcement, terrorism preparedness, immigration, emergency response and management, and natural disasters; criminal justice, including sentencing and corrections policy, firearms, and community violence; and drug policy, which focuses on problems related to illegal drugs and substance abuse....

    pdf0p xuan2013 25-01-2013 16 1   Download

  • This volume covers the technologies that are applied to the treatment and purification of water. Those who are generally familiar with this field will immediately embrace the subject as a treatise on solid-liquid separations. However, the subject is much broader, in that the technologies discussed are not just restricted to pollution control hardware that rely only upon physical methods of treating and purifymg wastewaters.

    pdf654p p_ngoc_cs 17-05-2011 270 123   Download

  • In Handbook of Water and Wastewater Treatment Plant Operations , the intent of the author is twofold. The Þrst intent is to consolidate the information and experience in waterworks and wastewater treatment plant operations that have evolved as a result of technological advances in the Þeld, and as a result of the concepts and policies promulgated by the environmental laws and the subsequent guidelines.

    pdf0p crazy_sms 10-05-2012 133 63   Download

  • Organic carbon concentrations can be reduced by enhanced coagulation, granular activated carbon or membrane filtration, but this fact can also lead to increased in brominated THMs (Black et al, 1996.). A combination of coagulation, ozonation, and biofiltration can effectively reduce trihalomethane and haloacetic acid formation potential (Chaiket et al, 2002.). Natural organic matter (NOM), the main precursor of DBPs, can also be removed by media filters coated with iron oxide

    pdf765p minhhai20789 23-04-2011 102 50   Download

  • The steady increase in industrialization, urbanization and enormous population growth are leading to production of huge quantities of wastewaters that may frequently cause environmental hazards. Raw or treated waste water is very oft en discharged to freshwaters and results in changing ecological performance and biological diversity of these systems. About 70% of water supplied ends up as wastewater and several natural water reservoirs are being contaminated by untreated sewage/industrial effl uents. This makes waste water treatment and waste water reduction very important issues....

    pdf446p ktcn_1 10-07-2012 97 47   Download

  • To properly operate a waterworks or wastewater treatment plant and to pass the examination for a waterworks/wastewater operator’s license, it is necessary to know how to perform certain calculations. In reality, most of the calculations that operators at the lower level of licensure need to know how to perform are not difÞcult, but all operators need a basic understanding of arithmetic and problem-solving techniques to be able to solve the problems they typically encounter.

    pdf569p crazy_sms 10-05-2012 91 46   Download

Đồng bộ tài khoản