epilogue meeting the needs of integrated coastal zone management

... in the tributaries of the Amazon river in Brazil, where the Rio Negro is one of the most striking examples, and in the coastal streams of Sumatra and Papua running between the vast expanses of ... at the 1972 International Meeting of Humic Substances a t Nieuwersluis, The Netherlands, Golterman (1975) underscored the importance of peat as the producer of humic substances affecting the ... during the years, has set the stage for the development of the concepts and types of humic substances followed today It triggered in the beginning a flurry of investigations and the ligno-protein theory...

Ngày tải lên: 11/08/2014, 12:21

... which the area under the growth curve comes to half of the area under the growth curve of the control) The curves are constructed using the average values of the replicates The area under the growth ... representative of the organisms of activated sludge, permits us to foresee the impact of toxicants on the processing of the wastewater treatment plant The test reaction is the death of the test organism ... to the classes of hazard are presented in Table The same approach was adopted in Russia for the attribution of the waste as a whole to the classes of hazard The only difference is the use of the...

Ngày tải lên: 11/08/2014, 17:22

... Determination of the operating pH requires a very careful examination of the theoretical basis of the process as the number of metals in the wastewater increases The determination of the discharge ... material to fix the hazardous wastes Selection of the method depends on the type and effect of wastes, applicability of the method to the waste, complexity, and cost of the method Thermal methods ... in reducing the amount and toxicity of the sludges produced Reduction of the metal content of the wastewater lowers the amount of sludge produced Use of trivalent chromium instead of hexavalent...

Ngày tải lên: 11/08/2014, 17:22

... facilitates the maintenance of high concentrations (20 –30 g/L) of VSS in the reactor The flow of influent starts at the bottom of the reactor, passes through the blanket of dense granules in the bottom ... destruction of pollutants, absence of residues, and improved biodegradability of the effluents Some of the disadvantages are extremely short half-life of the oxidants and high expense of their generation ... settler section Most of the treatment occurs within the blanket of granules The gas collected in the hood area of the bioreactor is continually removed while the liquid flows into the settler section...

Ngày tải lên: 11/08/2014, 17:22

... general the characteristics of the solid wastes generated reflect the type of animal being killed, but the composition within a particular type of operation is similar regardless of the size of the ... treatment option rather than for product recovery The effectiveness of these units depends on a number of factors and on their position within the series of operations The efficiency of the process for ... during the pretreatment stage Another disadvantage of the ponding system is the accumulation of solid sludge at the bottom of the ponds (Fig 6) Eventually the sludge and scum will clump together...

Ngày tải lên: 11/08/2014, 17:22

... between the rim and the tire The tire treads are the part of the tire that meets the road surface; their design and composition depend on the use of the tire Tire cords are woven synthetic fabrics ... Wastewater The quantity of wastewater generated by a wood preserving plant is a function of the method of conditioning used, the moisture content of the wood being treated, and the amount of rainwater ... preservative treatment All of these preconditioning methods have, as their objective, the reduction of the moisture content in the unseasoned stock to a point where the requisite amount of preservative...

Ngày tải lên: 11/08/2014, 17:22

Ngày tải lên: 27/05/2016, 20:30

... Part of the decomposition above 700°C (not shown on the graph) was attributed to the calcium carbonate of the sample, the content of which was about 45% in ash Therefore, the DTG peaks of the ... cj is the fraction of combustibles in component j, aj(t) is the reacted fraction of component j in time t and m∞ is the normalized amount of the solid residues (minerals) at the end of the experiment ... Ej is the activation energy of component j, g expresses the effect of ambient gas composition and f describes the change of surface reactivity as a function of the fractional burn off: As the function...

Ngày tải lên: 05/09/2013, 15:28

... this, the sensitivity of the NCI is significantly better compared with that of the PCI As a result, the NCI has also been equally developed in the sense of the choices of the reagent gases and their ... elemental composition of an ion in low resolution MS, the nominal mass is often used, which enable to count the numbers of each constituent elements However, if the sum of the masses of the atoms in a ... field of known strength to have the same kinetic energy (given they have the same charge) Therefore, the square of the velocity of an ion is reversely proportional to its m/z, Ek = (1/2)mv2 and the...

Ngày tải lên: 28/06/2014, 14:20

... rate of application lower than that of the primary tank is necessary here because of the different character of the material to be removed Rates in this portion of the system are in the range of ... control is the ratio of the volume of MLSS to the dry weight of MLSS This is known as the sludge volume index (SVI) and is in the range of 50 to 100 in well operating plants When the value approaches ... around the edge of the pit For proper protection against flies there must be a tight seal around the edge of the pit and adequate screening of openings in the privy structure itself In the 1930s...

Ngày tải lên: 10/08/2014, 20:20

... suitable rule of Therefore, e 100000 the accumulation of heavy P metals in municipal sewage sludge is different [ ,*oo a on each of zones as well as each of country 80000 The transportation of heavy ... Industrial zones References tll Brian J Alloway, Andrew P Jackson, The behaviour of heavy metal in sewage sludgeamended soils, The Science of the Total Environment, | 00 (1991) 5l-176 l5l, t4l of process ... processes [1] The accumulation of heavy metal in sewage sludge depends on characteristic of wastewater treatment plant 3.2 Variation of COD| system and its operation [2] The variation of EC value...

Ngày tải lên: 24/06/2015, 08:16

... because of the residual sludge concentration is low The method of intermittent discharge adopts the discharge of the mixture of sludge and water at a fixed time period, as in the end of the mud ... is far from the processing factory The gate of outlet trench is off and the gate of wastewater trench is open in the early stage of precipitation The flush water is discharged into the Applied ... B, C The tanks share the public wall and have hydraulic connection with each other through the public channel at the bottom Outlets of the connected channel were installed at the center of the...

Ngày tải lên: 07/07/2015, 10:30

... around the axis of the agitator at the center of the reactor (Fig 1) The packing ratio of the fibrous was 60 ± 5% based on the volume of the reactor for the attached growth biomass The picture of ... caused by the precipitation of ions or the formation of insoluble hydroxides, or sludge layers on the surface of the electrodes These layers insulate the surface of the electrodes, consequently ... and 4, respectively These results showed the influence of the internal recirculation flow on the phosphorus removal performance of the system, and in particular, the effect of dissolved oxygen...

Ngày tải lên: 13/09/2015, 17:48

... with the increased HRT of the adsorption tank From an engineering application point of view, the appropriate operational parameters of the recycle ratio, HRT of the regeneration tank, HRT of the ... technical feasibility of this process was demonstrated The effects of recycle ratio, HRT of the regeneration tank, HRT of the adsorption tank and SRT of the system were evaluated The removal efficiency ... with a change of the HRT of the adsorption tank The NH4+-N removal increased with an increase in the HRT The HRT had a similar sensitivity to the PO43 P removal (Fig 4) An increase in the HRT led...

Ngày tải lên: 05/09/2013, 09:38

... in the near future under the Kyoto Protocol Therefore, implementation of anaerobic digestion for the treatment of organic solid waste is an urgent issue In the present work, the performance of ... Accumulation of acids decreased the pH, resulting in the failure of the whole system The growth rate of the acidogenic bacteria is much higher than that of methanogenic archea, and the bacteria can be active ... which most of the acids consisted of propionate This indicates that the balance was broken between the production of acids and their consumption by methanogenesis at 30 d HRT Accumulation of acids...

Ngày tải lên: 05/09/2013, 10:15

... through opening provided on the head of the reactor The vapors then pass through a series of GI pipes interconnected to form two 90 bends The open end of the 173 | Proceedings of National Conference ... to the increase of space and disposal costs In a long term neither the land filling nor the incineration solve the problem of wastes, because the suitable and safe depots are expensive, and the ... complete the reactor set up Delivery pipes made of GI pipes and a quenching jar complete the experimental set up The heart of the process is a mild steel reactor where the cracking reaction occurs The...

Ngày tải lên: 27/11/2013, 21:37

Ngày tải lên: 13/02/2014, 12:20

... Society of Medicine, and the Royal Society of Health Professor Cooper is the President of the British Academy of Management, is a Companion of the (British) Institute of Management, and one of the ... Fellows of the (American) Academy of Management (having also won the 1998 Distinguished Service Award for his contribution to management science from the Academy of Management) Professor Cooper is the ... was awarded the CBE, Commander of the Order of the British Empire, by the Queen in 2001 Ivan T Robertson is Professor of Work and Organizational Psychology in the Manchester School of Management, ...

Ngày tải lên: 06/03/2014, 05:20

... process The next section, ‘ The management of flexible work and workers’’, therefore examines research on the role of managers in the implementation and diffusion of FWAs THE MANAGEMENT OF FLEXIBLE ... Austria, Canada, the USA, and the UK The presence of contributions from such a diverse range of countries indicates the international nature of our discipline One of the purposes of the international ... one bundle of alternatives will be preferred to another if it contains more of at least one good, and has the same quantity of other goods as the other The fifth assumption, the axiom of continuity,...

Ngày tải lên: 06/03/2014, 05:20

... secure the services of eminent members of appropriate professions in the examination of policy matters pertaining to the health of the public The Institute acts under the responsibility given to the ... of further analysis The Structure of Agriculture The “structure of agriculture” is a broad phenomenon involving both the characteristics of farms (the system of agricultural production) and the ... NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences,...

Ngày tải lên: 06/03/2014, 15:20