National Repository of Grey Literature 136 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Multifunctional garden ponds and reservoirs
Kraváček, Václav ; Pumprlová Němcová, Miroslava (referee) ; Kriška-Dunajský, Michal (advisor)
The bachelor's thesis deals with the issue of garden ponds and reservoirs with a focus not only on technical design, but also on long-term maintenance of water quality. The main part of the work is devoted to a more detailed description of materials intended for the construction of garden ponds, technical equipment, or the arrangement of individual zones in the pond. Furthermore, the work deals with a detailed description, parameters and character of selected types of reservoirs, such as ponds intended for fish farming, or natural bathing habitats. Last but not least, the work is conceived as a literary search of fundamental knowledge in the field of implementation of garden ponds and their maintenance. The theoretical knowledge is followed by the second part of the work, focused on the design of two variants of the design of a garden pond for a selected investor.
Study of surface water quality in the Ivančice area
Jonášová, Simona ; Řezáčová, Veronika (referee) ; Komendová, Renata (advisor)
Selected physical and chemical water quality parameters were measured at four sampling localities on the Jihlava River. Using UV-VIS spectrophotometry, inorganic forms of nitrogen, chlorides, total phosphorus and CODCr were determined. BOD5 was determined by the dilution method. Na+, K+ and Ca2+ ions, whose concentrations ranged from 5,75–108 mgl 1, were measured by flame emission photometry. Selected metals (Cu, Ni, Pb, Zn, Hg, Cr, Fe, Mn) were determined in water by the ET-AAS method. Decomposed sediments were determined by the FAAS method. Concentrations of Cr, Cu, Pb and Ni in water were in the range of 0,05–2,84 gl1. Metal concentrations in sediments ranged from 0,02–293 mgkg1, where nickel concentrations were above the limit. The occurrence of iron and manganese is due to the geological subsoil. For the other elements, anthropogenic source is assumed. From the measured data, the water quality is slightly variable in this locality and is classified as fourth or fifth class, i.e. as highly polluted water.
Use of buildings rainwater for irrigation and soaking ind the Moravské Křižánky village
Hubený, Michal ; Kameníčková, Ivana (referee) ; Hyánková, Eva (advisor)
The bachelor thesis deals with the issue and utilisation of rainwater. The thesis is divided into two parts - theoretical and practical. Theoretical part consists of general rainwater distribution, the formation of individual rainfall - its composition, quality, surface run-off, individual possibilities of water purification, accumulation and infiltration. The ways of using rainwater in households and gardens are also described in thesis. The practical part deals with the use of rainwater around a family house in the specific location. The area is located in the village called Moravske Krizanky in Vysočina region. In conclusion, a complete solution for rainwater accumulation, irrigation and infiltration was developed.
Water Politics
Dvořáková, Dana ; Vojtěchovský, Miloš (referee) ; Sterec, Pavel (advisor)
The work is aimed at familiarizing the audience with the problems of water in the Czech Republic and its distribution within the landscape. However, its character, which approaches to documentary work, doesn´t explicitly describe the problem, but rather attempts to visualize it and give the viewer space for his own imagination. The work draws in contrast the examples of fine functional interventions in the landscape with examples of monstrous concrete structures - dams. It points to problematic places and tries to convey to the viewer the current issue not only in the chosen location. The main thing is the lyrical performance, which evokes not only a video but also the sound part and the narrative that explains the whole problem. The video is not purely informative, its specificity is also focused on the enjoyment of the viewer. He plays with documentary techniques but does not use them as a priority. The shots are deliberately chosen so that the concrete buildings look monumental and have their seriousness. The background of the shots also shows the time of their creation. This element is supposed to be critical and is supposed to be opposed to studies that use old plans to build new water reservoirs that do not give space for a more efficient solution. The work also touches on the overproduction and issues of today's modern agriculture.
Evaluation of water quality in water treatment plant Mokošín
Vosáhlo, Jan ; Vybíralová, Pavla (referee) ; Biela, Renata (advisor)
The theme of this thesis is " Evaluation of water quality in water treatment plant Mokošín". The source of water supply are 4 artesian wells. The paper first describes the supply area and water treatment plant with individua water treatment technologies. In the practical section there is the specification of contaminating elements required to be separated at the water treatment plant. Since it is an underground source of water, there is an increased amount of iron and manganese. Increased attention is given to arsenic, which occurs in two water sources in recent years. There are also offered the possibilities of removing arsenic at water treatment plant and two filter materials tested in the laboratory. Monitoring of water quality takes place always in resources and after treatment in the time period of five years, the arsenic values are reported for ten years.
Software for simulation of water treatment and water distribution processes
Pavliš, Jan ; Malaník,, Stanislav (referee) ; Kučera, Tomáš (advisor)
This document aims on presentation of software focused on mathematic modelling in water treatment and water distrinbution. It consists of a list and descriptions of a number of programs which use static or long-term analysis in examining hydraulics in water distribution systems and also examine water quality parameters. There are other programs also included in this thesis that solve different types of analysis or water engineering structures. Then we can find elaborate descriptions of programs ARTS and Epanet and example analysis of both too. ARTS simulated waterhammer process and Epanet analysed water age through the water distribution system of a small village. This thesis brings basic overview of available programs designated for engineers of water treatment and distribution systems and is also the first step for my future Master´s thesis in which I would like to deeply focus on one of the programs.
System for Remote Monitoring and Management of Garden Pools
Šťastný, Marek ; Jaroš, Jiří (referee) ; Šimek, Václav (advisor)
This thesis deals with the design and subsequent implementation of a wireless system for automatic monitoring and control of a garden pool. In this work, the reader is first introduced to basic water quality measurements. Next, the analysis of wireless technologies and communication protocols is analyzed in this thesis. Based on the knowledge gained, the design and subsequent implementation of the system modules and the web application that controls the system has been carried out. The thesis concludes with a description of how the modules were tested and the functionality of the whole system was verified.
Wastewater management in the village Sudice
Hoferková, Lenka ; Mlčoch, Ondřej (referee) ; Hluštík, Petr (advisor)
This thesis is written due to the poor quality of the stream Sudický potok and the fish kills in nearby ponds supplied by the stream. The goal is evaluating the results of the water samples obtained from the four local spots. Polluted quality in the stream in the Sudice town then proceed to design three various solutions of the sewage collection systems. The first option is designing the municipal wastewater treatment plant and the draining wastewater by single sewerage or sanitary sewerage. The second choice designs the domestic waste water treatment plants. The third solution is designing the sanitary sewerage and effluent sewerage to the nearby waste water treatment plant in Šebetov town. All variants are economically evaluated. In conclusion the first solution, municipal waste water treatment plant with the single sewerage, is recommended.
The heat transfer medium in heating systems
Michalíčková, Iveta ; Blasinski, Petr (referee) ; Počinková, Marcela (advisor)
Theme of diploma thesis is the heat transfer medium in heating systems. The thesis is departed to three parts. In the first part, there is a theoretical solution of heat transfer mediums. In the second part, there is a calculation solution of the project. Project solves heating of the apartment building. There are two variants of heating source and water treatment. Those variants are compared. The last part is experimental part. Theme of the experiment is quality of heating water in heating systems.
EXTENDED METHODOLOGY FOR WATER RESOURCES AND WATER-RELATED ENERGY ASSESSMENT ADDRESSING WATER QUALITY
JIA, Xuexiu ; Ditl,, Pavel (referee) ; Dr hab. inż. Paweł Ocłoń, prof. PK (referee) ; Dr. Aoife M. Foley (referee) ; Varbanov, Petar Sabev (advisor)
Problémy s vodou, zejména její nedostatek a znečištění, ovlivňují každodenní lidský život a hospodářský vývoj. Globální změny klimatu zvyšují pravděpodobnost a četnost extrémních událostí jako jsou sucho a záplavy. Rostoucí problémy s nepravidelnou dostupností a znečištěním vody vyžadují pokročilejší metodiky hodnocení vodních zdrojů, které povedou k efektivnímu využití a hospodaření s vodou. Tato práce se zabývá rozšířenými metodikami pro hodnocení vody z pohledu její kvality a kvantity a pro hodnocení spotřeby energie a produkce emisí souvisejících s vodou. Tři hlavní metodiky jsou navrženy na základě konceptu vodní stopy (Water Footprint) a pinch analýzy vody (Water Pinch Analysis) pro posouzení kvantitativních a kvalitativních hledisek využití a spotřeby vody. Použití těchto metod je rovněž demonstrováno pomocí numerických a empirických případových studií zaměřených na hodnocení a optimalizaci využití regionálních a průmyslových vodních zdrojůDále jsou diskutovány souvislosti mezi vodou a energií (Water-Energy Nexus) za účelem analýzy problémů týkající se vody z širší perspektivy. Z pohledu vody a vodních zdrojů je provedeno počáteční zhodnocení energetické náročnosti a produkce emisí skleníkových plynů v problematice odsolování mořské vody. Výsledky prezentované v této práci navazují na současné metodiky hodnocení vodních zdrojů. Stopa dostupnosti vody (Water Availability Footprint) byla navržena pro zohlednění dopadu degradace kvality vody ve stávajících postupech pro posuzování nedostatku vody, ve kterých nebyla dříve řešena. Druhým přínosem této práce je návrh konceptu kvantitativní-kvalitativní vodní stopy (Quantitative-Qualitative Water Footprint - QQWFP), ve kterém je definována vodní stopa z pohledu nákladů a následně je stanovena v souvislosti s celkovými náklady na spotřebu vody a odstraňování kontaminantů, které se do vody dostávají v průběhu jejího využití. Vodní stopa založená na nákladech poskytuje výsledky, které jsou intuitivnější jak pro management vodních zdrojů tak i pro veřejnost. Tento přístup umožňuje lépe kontrolovat a řídit průmyslové a regionální využívání a správu vody. Třetím přínosem této práce je rozšíření pinch analýzy nedostatku vody (Water Scarcity Pinch Analysis - WSPA), ve které je aplikována pinch analýzy vody na makroúrovni se zaměřením na regionální hodnocení a optimalizaci zdrojů a využívání vody. Všechny tři navržené metody jsou zaměřeny na stanovení dopadů využití vody z hlediska jejího množství a kvality, analýzy QQWFP a WSPA také pokrývají dopady vícečetných kontaminantů. Kromě hledání řešení se tato práce také pokouší naznačit potenciální směry pro budoucí výzkum v dané oblasti. Mezi významná potenciální témata k diskuzi patří 1) pokročilejší metoda kvantifikace vlivu více kontaminantů a 2) implementace a analýza ekonomické proveditelnosti přístupů WSPA a QQWFP s lokalizovanými daty s cílem nalézt přizpůsobené řešení pro optimální využití regionální a průmyslové vody.

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