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Growth of the common reed (\kur{Phragmites australis}) in a selected constructed wetland used for wastewater treatment.
MOULISOVÁ, Lenka
The Bachelor{\crq}s thesis is a part of the Project of GACR 206/06/0058 Monitoring the heavy metals and the selected risk elements in a waste water cleaning process in artificial wetlands. This work is aimed at evaluating the growth characteristics of the common reed, Phragmites australis, in a constructed wetland used for wastewater treatment. A destructive method was used for sampling. The samples were taken in the inflow and the outflow parts of the vegetated bed in one vegetation season. The aboveground biomass was determined from six samples taken in the inflow and outflow part of the vegetated bed, respectively. The belowground biomass was determined from two samples taken in the inflow part and two samples taken in the outflow part. The mean total aboveground biomass (estimated in August 2007) was 1296 g.m-2 and 1105 g.m-2 in the inflow and outflow part, respectively. The mean live belowground biomass was 1729 g.m-2 and 2161 g.m-2 in the inflow and outflow part, respectively.
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Studie nakládání s odpadními vodami v obci Křetín
Alexová, Ludmila
This diploma thesis deals with the design of an appropriate waste water treatment system in Křetín village. The current state of waste water management in the village was evaluated on the basis of field survey of the site and implementation of a questionnaire survey. The goal of the study is to propose possible ways of waste water treatment as well as the appropriate location of these alternatives. Part of the thesis is a literary overview of the studied issues, the characteristics of the territory and the possibility of obtaining financial means.
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Below-ground biomass of the common reed (Phragmites australis) in a constructed wetland used for wastewater treatment
MOULISOVÁ, Lenka
My thesis is a part of the project GACR 206/06/0058 Monitoring of selected heavy metals and risk elements in a wastewater cleaning process in artificial wetlands. The goal is to evaluate temporal and spatial variability of underground biomass of Phragmites australis in the artificial wetland used for wastewater treatment in Slavošovice. The destructive method was used for the sampling. The aboveground biomass was determined from six samples taken at the inflow and six samples at the outflow. The belowground biomass (in 2008) was estimated from two samples taken at the inflow and two samples at the outflow. In 2009, the belowground biomass was determined from six samples taken from the inflow and six samples from the outflow. The analysis of the root structure was determined from 12 samples collected at the inflow and 12 samples of the outflow. The mean total aboveground biomass reached 1039 g.m-2 at the inflow and the 1749 g.m-2 at the outflow. Average total belowground biomass in 2009 reached the inflow 1718 g.m-2 and 1562 g.m-2 at the outflow. The average total length of roots growing from one node to was 284,7 m.m-2 and 324,9 m.m-2 in the inflow and outflow part, respectively. Average specific root length of the inflow was 2589,5 cm.g-1 and the outflow 2956,9 cm.g-1. The average total length of roots reaching the inflow of two kilometers and three kilometers of inflow.
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Function of the root wastewater treatment in case of two wastewater treatment stations in Třeboň Biosphere Reserve.
MUNDOKOVÁ, Mariana
The Bacherlor´s thesis monitors the concentrations of certain chemicals in waste water. The locations of this testing operation were Příbraz, a constructed wetland that has been operating for nine years and Rosec also a constructed wetland in testing operation. This project shows the physical construction and the function of constructed wetlands. It also reports on the levels of the BOD 5, COD and TSS. From our monitoring records the efficiency for BOD 5, COD and TSS has been steady over the study period for both locations. Only once for a period of four months outflow concentration of TSS was higher the due to increased inflow of constucted wetland TSS at the Roseč.
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