case study treatment of aromatic pollutants using peroxidase enzymes

... cause of such inaction may be related to a lack of understanding of the mechanism of saltwater intrusion In many coastal areas, such as along the Gulf of Mexico and the Atlantic coast of the ... distribution of wells to continue to extract freshwater without causing direct impacts to wells The final outcome of this stage of planning should be a clear set of objectives for which a set of solutions ... conceptual model of the mechanism of intrusion must be formed as a working hypothesis for further study Intrusion generally can be categorized into one or more of several types of intrusion: horizontal...

Ngày tải lên: 11/08/2014, 13:21

... Reichard of the United States Geological Survey, Wayne Jackson of the Los Angeles County Department of Public Works, Dennis Watt of the United States Bureau of Reclamation, Stephen Thomas of Camp ... of data were incorporated into a Geographic Information System using Arc/Info software A quasi three-dimensional groundwater flow model was constructed using Modflow to simulate the onshore/offshore ... Woodward-Clyde, 1999] The Santa Ana Office (California) of URS Greiner Woodward Clyde conducted the study A copy of the report is contained in the accompanying CD Nine types of alternative seawater barriers...

Ngày tải lên: 11/08/2014, 13:21

... Map of The Netherlands: position of the Rijnland Water Board and ground surface of the Netherlands; (b) Map of the Rijnland Water Board: position of some polder areas and the sand-dune areas of ... instantaneous increase of natural groundwater recharge of 3% at all sand-dune areas in 2000 AD Oxidation of peat, compaction and shrinkage of clay, and groundwater recovery are causing land subsidence, ... Figure 7: Location of study area and simulated chloride concentrations 4.2 4.2.1 Case History Site Location and Project Objectives The study area lies in the southern portion of the Southwest Florida...

Ngày tải lên: 11/08/2014, 13:21

... Aquifer Management Figure 1: (a) Map of The Netherlands: position of the island of Texel and ground surface of The Netherlands; (b) map of Texel: position of the four polder areas and sand-dune ... distribution in this Texel case is based on about 100 measurements of chloride, errors can easily occur, mainly because of a lack of enough data Artificial inversions of fresh and saline groundwater ... Press LLC Island of Texel, The Netherlands 79 Figure 2: (a) A schematization of the hydrogeological situation at the island of Texel, The Netherlands; (b) the simplified composition of the subsoil...

Ngày tải lên: 11/08/2014, 13:21

... inherent assumptions of any model are of course limited in a true portrayal of a particular hydrogeologic regime That said, models offer insight in the magnitude or scale of exchange processes ... a depth of approximately 10 m (Figure 5) From the interpretation of many tens of km of streaming resistivity data © 2004 by CRC Press LLC 104 Coastal Aquifer Management Figure 3: Map of Tampa ... large number of submarine groundwater springs, which discharge a full range of salinities into coastal waters Of these, Crescent Beach submarine spring off the northeastern coast of Florida (Figure...

Ngày tải lên: 11/08/2014, 13:21

... measurements of limited precision; this can determine salinity only to ppt, but can provide a reading very rapidly and requires only a drop of water CASE STUDY [URISH AND QANBAR, 1997] 4.1 Study Location ... Field sampling of coastal groundwater discharge is greatly complicated by the transient nature of the tidally induced changing boundary The timing and location of the quality of groundwater in ... densities of water to occur; this leads to greater uncertainty in any attempts at determining the volume of infiltrated saltwater directly The presence, however, of a substantial layer of infiltrated...

Ngày tải lên: 11/08/2014, 13:21

... inversion of geophysical data regardless of whether that data is electric, acoustic, or some other class of physical measurement Because these “conceptual tools” offer a general way of interpreting ... 3.1 Scale of Investigation Because the focus of the south Florida study was water quality and possible seawater intrusion, the electrical conductivity of the surficial aquifer was of primary ... scales of investigation (Figure 3) Although other information would be required to generate a useful model of subsurface properties on the basis of this combination of data, the comparison of electrical...

Ngày tải lên: 11/08/2014, 13:21

... frequent and prolonged periods of drought as well as the presence of a variety of natural and anthropic sources of salt (sea spray, sea water, lagoon, evaporation ponds of the salt-works and salt-hills), ... most common sources of error in groundwater modeling lie in the conceptualization of the model and uncertainty of the data Furthermore, the coexistence of several sources of error means that ... geology, proximity of the sea, presence of the lagoon and saltworks, and anthropic factors including irrigated agriculture and the urban and industrial development of the study area The relationship...

Ngày tải lên: 11/08/2014, 13:21

... end result of this analysis is a relative comparison of the effect of uncertainty of each individual parameter on the final transport results in terms of the arrival time and mass flux of radionuclides ... assumption of an infinite matrix), values for κ that are smaller than the best estimate of 1.37 were chosen A random distribution of 100 values is generated for κ with a minimum of 0.0394, a maximum of ... location of the surface water divide itself, as the topography of the island in the area of the nuclear tests is very subdued The surface water divide was estimated using a detailed series of topographic...

Ngày tải lên: 11/08/2014, 13:21

... al., 2003a, b] Here, we report the case study of the city of Miami Beach in northeast Spain A large fraction of the total population of Spain (about 80% of its million inhabitants) lives along ... reliability of prediction Next, we examine the effect of data uncertainty In cases and 5, we fix the reliability level to R = 95%, same as case For case 4, we use the same coefficient of variation ... the monitoring of seawater intrusion is insufficient In spite of the strict regulations introduced in the Water Act of Spain, control of abstractions is scarce In the coastal area of Tarragona,...

Ngày tải lên: 11/08/2014, 13:21

... port of Chuburna (for example), just west of Progreso (Figure 1), the lens has a calculated thickness of about 18 m at the shore A first-order topographic survey of most of the northwest study ... Overlies part of Ring of Cenotes and Mérida Block Table 1: Hydrogeologic characteristics of the Yucatan Peninsula © 2004 by CRC Press LLC Coastal Aquifer Management 260 Figure 1: Location of study area ... thickness of the freshwater lens using the Ghyben-Herzberg ratio varies between a low of 18 m near the coast to over 80 m more 60 km inland The large REVs used for this study justified the use of a...

Ngày tải lên: 11/08/2014, 13:21

Ngày tải lên: 17/03/2014, 16:20

... is used to represent a member of the set of risk-reduction projects, pe represents a member of the set of restoration projects, and i represents a member of the set of possible implementation periods ... Tool Let pe represent a member of the set of restoration projects and pr represent a member of the set of risk-reduction projects Let t represent a member of the set of time periods analyzed in ... represent a member of the set of rivers (i.e., Mississippi or Atchafalaya) Let k represent a member of the set of river reaches in the river system Let i represent a member of the set of implementation...

Ngày tải lên: 29/03/2014, 19:20

... Unlim Resour Leveled resources Nb of TBM Nb of teams for elec general services 24 Nb of teams for cooling and ventilation 12 Nb of teams for cabling 24 Nb of teams for machine installation (years) ... host contribution should not take account of the cost of any land acquisitions 2) Member state contributions should not be based on GDP but on the number of interested states and their willingness ... Models InGDE A significant percentage of the non-civil construction costs will be provided in nonthe form of in-kind contributions While this is a political fact of life it is inimportant to avoid...

Ngày tải lên: 29/03/2014, 23:20

... of case studies shows examples of sound practice and differences in approaches around the world The case studies also demonstrate the linkage between scales of coastal planning Many of these case ... Contributors Case study/ technical contributors and general editorial assistance John E.Hay Woodward-Clyde Professor of Environmental Science School of Environmental and Marine Sciences University of Auckland ... endorsement of Mike Paul and Reece Waldock from the Maritime Division of the Department of Transport Robert also thanks Ian Eliot and John Dodson, Department of Geography, University of Western...

Ngày tải lên: 08/08/2014, 10:22

... and the form of definition is termed ‘definition according to use’ For example, tackling the issue of non-point sources of marine pollution would require the definition of an area of attention ... detailed treatment in Chapters 3, and of tools and techniques to help to achieve the sustainable development of coastal areas The concept of Sustainability came into prominence with the publication of ... or extend from the inland reaches of coastal watersheds to the limits of national jurisdiction in the offshore Its definition will depend on the particular set of issues and geographic factors...

Ngày tải lên: 08/08/2014, 10:22

... there are a number of resorts without some form of treatment and poor flushing of systems, sewage can be a public health hazard Other environmental impacts of increased use of coastal and marine ... and use of the coastline; the need for new road connections; the future use and management of the large amount of public land; and the impact of metropolitan development on the future of the region ... also developed in a number of areas There are a number of issues associated with both forms of culturing The conversion of land to ponds and the consequential loss of productive agricultural...

Ngày tải lên: 08/08/2014, 10:22

... programmes they are most often called statements of principle While statements of principle often provide the philosophical climate for the development of a well defined hierarchy of guiding statements, ... are generally not strictly part of that hierarchy Nevertheless, statements of principle are often a critical part of the family of guiding statements At the top of the hierarchy is a statement ... implementation of a coastal programme (Figure 3.1) In some cases these are statements of moral or ethical issues, which in the business planning world are often called statements of ethos or creed...

Ngày tải lên: 08/08/2014, 10:22

... norms of a coastal nation will shape the boundaries of a coastal programme, often long before notions of the exact details of programme design have been considered Much of the content of this ... daily maximum of 2025; limiting the number of permitted operators at the site, and a form of tourism facility zoning; reduction of the impacts of uses which are allowed; hardening of the site; ... management of the Ciarns Section of the Great Barrier Reef Marine Park A long-term study (Alder, 1996) of changing awareness and attitudes of Cairns (Australia) residents towards management of the...

Ngày tải lên: 08/08/2014, 10:22