|
|
Appropriate technology for recycling of phosphorus from surface water and wastewater
Holba, Marek ; Maršálek, Blahoslav ; Maršálková, Eliška ; Plotěný, Miroslav
There were identified the sources of phosphorus, which should be used to maximize the recycling procedures. To achieve these improvements new recycling technologies were introduced. Currently, there are quite a wide range of technology solutions, where every solution has its pros and cons. And no technology shows itself as clearly the best solution. However in the modern world are technologies focused on recycling procedures of phosphorus in the form of struvite and processing of sewage sludge. While for developing countries appears to be the most appropriate technology based on the separation of urine and manure from livestock.
|
|
| |
|
|
Manipulation with flow rates in water bodies - the possibilities for inhibition of cyanobacterial blooms development
Maršálek, Blahoslav ; Šejnohová, Lenka ; Vinklárková, Darina ; Plotěný, Miroslav ; Jančula, Daniel
If we compare the sediment capping by active barriers to protect the phosphorus release from sediments with other technologies of manipulation with methods of water discharge, it is clear, that by well-considered manipulations with water discharge, it is possible to reach the same (comparable) results with lower costs and with lower ecotoxicological and limnological risks. By the manipulation of water level, it is possible to reduce cyanobacterial bloom development as supplemental or supporting measure, but the effects may differ in different water bodies and thus it must be consulted always with specialists.
|
|
| |
|
| |
|
| |
|
| |
|
|
Biodiversity and Forests in National Parks
Hédl, Radim ; Svátek, M.
This paper analyses definitions of national park according to international (IUCN) and national (Czech) legislative. It concludes that there is considerable variability and that no universaly valid views are possible. Concerning the Czech National parks, the current tendency towards large unmanaged areas called wilderness is discussed. The conclusion is that despite of it usefulness, wilderness should be only one of the management strategies in order to maintain biodiversity, which is the principal purpose of existience a national park.
|
|
| |
|
| |
guest ::
