|
|
Possibilities of removing odors on the sewer network
Šlechtová, Tereza ; Malaník,, Stanislav (referee) ; Hluštík, Petr (advisor)
The aim of this diploma thesis is to research the possibilities of an odor regulation in a sewerage system. The first part of the thesis is devoted to legislation in sewege odor problematics. The second part includes description of the cause of the odor and methodology related to a hydrogen sulfide elimination either from sewerage atmosphere or straight from waste water. The next part examines the results of a survey, which was given to operators of the sewerage system. The survey examined the cause of an odor, its control and possible solutions of an odor in a sewerage system. Practical part is devoted to a given geographical area, where these problems have occurred the past. In this area the measuring of hydrogen sulfide presence took place by adding chemicals into waste water. From the collected data an evaluation was made. This can serve as a possible recommendation to sewege operators.
|
|
|
Options eliminate odors in sewer network
Žíla, Radim ; Malaník,, Stanislav (referee) ; Hluštík, Petr (advisor)
The diploma thesis focuses on the possibility of removing odor on the sewer network. The first part of the research describes how the odor is generally perceived and what legislation regulates its quantity in the air. The second part of the research focuses on problems of formation of smelting sulfate on the sewer network. This section describes the formation of sulfane as a major component of odor. Further disclosed are methods for its removal, and the ways in which the odor is measured. The practical part deals with laboratory testing of pre-selected fillings in order to determine their ability to remove odorous sulfane. In the second part, on-line measurements are made to determine the causes of sulphan formation in a given location.
|
|
|
Eliminating odors in the sewer network
Novotný, Jiří ; Malaník,, Stanislav (referee) ; Hluštík, Petr (advisor)
The diploma thesis focusses on the elimination of odor in the sewer system. Firstly, the paper contains the research in problematics of the origin, control and risks of the hydrogen sulfide for humans as well as for the sewer system. Secondly, the paper describes methods for hydrogen sulfide removal from water, air and in addition to that the selected sorbents are described in detail. Practical part deals with sorbent testing for hydrogen sulfide removal in laboratory environment. The practical part also follows up the odor in the particular area through sorption on sewer filters. From the measured data and from the results of the laboratory analyzes the consequences of the odor are evaluated and recommendations for the operator are presented.
|
|
|
Stanovení koncentrace pachových látek v intenzivním chovu drůbeže na hluboké podestýlce
HRUŠKA, Jiří
The production of emissions of odorous substances, which are mainly produced in the livestock breeding, is growing with the increasing intensification of agricultural production. This bachelor thesis is focused on monitoring of odor emissions arising from intensive poultry farming on deep litter Measurements were carried out in the broiler fattening hall located in the company called Farma u lesa in Sudoměřice u Bechyně. Monitored emissions were evaluated in 2019. The samples were evaluated by the dynamic olfaktometry, which is, according to the standard ČSN EN 13 725, the reference method for determing the evaluation of emissions of odorous substances from livestock breeding. The resulting odor emission values ranged from 0,02 to 0,27 OUE . ks-1 . s-1. The results were compared with the recommended emission values given in the BREF reference document and it can be claim that the odor produced from this company is in low values.
|
|
|
Laboratorní test disasortativního párování u hraboše polního - literární rešerše
BÍLKOVÁ, Pavlína
Petrásková P. (2019): Laboratorní test disasortativního párování u hraboše polního - literární rešerše [Laboratory test of disassortative pairing in the common vole - literature search. Bc. Thesis in Czech]-49 pp. , Faculty of Sciences, University of South Bohemia, České Budějovice, Czech Republic. The aim of this work is to use the literature research to map current knowledge about the effect of odour preference on reproductive success in mammals focusing on voles. As assortative pairing is referred to each form of non-random pairing. Most of the time is meant a situation in which individuals who have similar phenotypes pair more often. The opposite is the situation where individuals with different phenotypes pair more often. This is sometimes referred to as negative assortative or disassortative pairing. In particular, this study deals with non-random pairing among to body odour . These are mainly linked to genes for the major histocompatibility complex (MHC) in animals, which play a key role in the immune system. MHC gene products found in various body secretions form the specific odour of each individual. In the research part were searched question for following questions: How is the breeding partner chosen? Is Assortative or Disassortative Pairing More Frequent? What information does body odour convey? What channels is the odour information transmitted and received? How is odour preference testing solved in laboratory conditions? In the practical part, a plan of the experiment is presented in which T-labyrinth will play the main role in determining the odour preference. Under laboratory conditions, voles will have plenty of time to complete the process
|
|
|
Somatic work: How people relate to the olfactory experience with the example of foreigners in the CR.
Zídková, Kateřina ; Spalová, Barbora (advisor) ; Tesárek, Jan (referee)
This thesis is dealing with the sense of smell and how do we relate to it in our social lives. I was looking into the mechanics of somatic work. It is a term defined by Vannini and Waskul (2008) as a process whereby a somatic perception undergoes a reflexive interpretation. Somatic perception isn't something that just happens, it is actually a process which yield to socialization. On the basis of 8 qualitative interviews and 5 consequential smell diaries using the hermeneutic analysis I identified, how and in which situations do foreigners in the Czech Republic work with their sense of smell and olfactory experience. It is mostly in situations connected with food, places, nature and people. Each of these situations I examine in a separated chapter. Somatic work is being done in compliance with social norms. Within these social norms rules for handling odors are negotiated. So, I also looked into how these social norms function in connection with smells. I also described, how odors relate to memory and what meanings do people connect with it.
|
|
|
Possibilities of removing odors on the sewer network
Šlechtová, Tereza ; Malaník,, Stanislav (referee) ; Hluštík, Petr (advisor)
The aim of this diploma thesis is to research the possibilities of an odor regulation in a sewerage system. The first part of the thesis is devoted to legislation in sewege odor problematics. The second part includes description of the cause of the odor and methodology related to a hydrogen sulfide elimination either from sewerage atmosphere or straight from waste water. The next part examines the results of a survey, which was given to operators of the sewerage system. The survey examined the cause of an odor, its control and possible solutions of an odor in a sewerage system. Practical part is devoted to a given geographical area, where these problems have occurred the past. In this area the measuring of hydrogen sulfide presence took place by adding chemicals into waste water. From the collected data an evaluation was made. This can serve as a possible recommendation to sewege operators.
|
|
|
Options eliminate odors in sewer network
Žíla, Radim ; Malaník,, Stanislav (referee) ; Hluštík, Petr (advisor)
The diploma thesis focuses on the possibility of removing odor on the sewer network. The first part of the research describes how the odor is generally perceived and what legislation regulates its quantity in the air. The second part of the research focuses on problems of formation of smelting sulfate on the sewer network. This section describes the formation of sulfane as a major component of odor. Further disclosed are methods for its removal, and the ways in which the odor is measured. The practical part deals with laboratory testing of pre-selected fillings in order to determine their ability to remove odorous sulfane. In the second part, on-line measurements are made to determine the causes of sulphan formation in a given location.
|
|
|
Vliv emisí prachových částic a pachových látek z intenzivního výkrmu drůbeže na životní prostředí v okolí chovu.
COUFAL, Marek
This thesis is about evaluation of the influence of odorus substances and dust particles from intensive poultry farming to the environment. Measurement was done on a family farm near the forest in spring and autumn in 2017. The fattening of broilers is carried out there in four fattening halls with a total of 103,000 units. Poultry is fattened on the farm for 238 days during the whole calendar year after 7 batches. Sampling was carried out from one of these halls. The values obtained are ranged from 59 / m3 to 215 / m3 for odorous substances and particulate matter PM10 ranging from 0.061 mg to 0.0765 mg. PM2.5 dust particles showed values of 0.042 mg after 0.1535 mg. Evaluation of odorous substances was performed by the method of dynamic olfactometry according to the standard ČSN EN 13 725. The values obtained were ranged from 59 / m3 to 215 / m3. The range of production specific emissions was between 0.013828 and 0.298366 ( / / s). The PM10 particle emission production rate between 0,0000179 and 0,0001094 (mg / pc / year) and PM2,5 from 0,0000642 to 0,0001672 (mg / pc / year) was determined using the particulate measurement methodology. These data were compared with the relevant air pollution limits according to Annex No. 1 to the Act on Air Protection No.201 / 2012 Coll., Immission background in the locality and a dispersion study was prepared for them.
|
|
|
Eliminating odors in the sewer network
Novotný, Jiří ; Malaník,, Stanislav (referee) ; Hluštík, Petr (advisor)
The diploma thesis focusses on the elimination of odor in the sewer system. Firstly, the paper contains the research in problematics of the origin, control and risks of the hydrogen sulfide for humans as well as for the sewer system. Secondly, the paper describes methods for hydrogen sulfide removal from water, air and in addition to that the selected sorbents are described in detail. Practical part deals with sorbent testing for hydrogen sulfide removal in laboratory environment. The practical part also follows up the odor in the particular area through sorption on sewer filters. From the measured data and from the results of the laboratory analyzes the consequences of the odor are evaluated and recommendations for the operator are presented.
|
guest ::
