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[ga_domain] =>
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[gt_code] =>
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[pozadi2] =>
[pozadi3] =>
[pozadi4] =>
[pozadi5] =>
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[newurl_akce] => '[cs]'
[newurl_iduzel] =>
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[newurl_path_link] => Odkaz na newurlCMS
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[platne_od] => 31.10.2023 17:07:00
[zmeneno_cas] => 31.10.2023 17:07:30.290053
[zmeneno_uzivatel_jmeno] => Jan Kříž
[canonical_url] =>
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[cms_time] => 1713867865
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[autor] => Autor
[drobecky] => Nacházíte se: VŠCHT Praha – FTOP – Ústav technologie vody a prostředí
[more_info] => více informací
[top_search_placeholder] => hledat...
[social_fb_odkaz] => https://www.facebook.com/utvpvscht/
[social_fb_title] => Facebook ústavu
[social_tw_odkaz] => https://twitter.com/uctwater
[social_tw_title] => Twitter ústavu
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[social_yt_title] => Youtube VŠCHT Praha
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[paticka_budova_c_popis] => Dětský koutek Zkumavka, praktický lékař, katedra ekonomiky a managementu, ústav matematiky
[paticka_budova_1_nadpis] => NÁRODNÍ TECHNICKÁ KNIHOVNA
[paticka_budova_1_popis] =>
[paticka_budova_2_nadpis] => STUDENTSKÁ KAVÁRNA CARBON
[paticka_budova_2_popis] =>
[paticka_adresa] => VŠCHT Praha
Technická 5
166 28 Praha 6 – Dejvice
IČO: 60461373
DIČ: CZ60461373
Datová schránka: sp4j9ch
Copyright VŠCHT Praha 2014
Za informace odpovídá Oddělení komunikace, technický správce Výpočetní centrum
[paticka_odkaz_mail] => mailto:Jan.Bartacek@vscht.cz
[logo_href] => /
[google_search] => 001523547858480163194:fu_bhgn2a5e
[adresa_url] =>
[charakteristika] => Charakteristika
[vice] => → více
[navaznosti] => Navazující studium v oborech
[uplatneni] => Uplatnění
[vyucuje_se_na_ustavech] => Bližší informace na adresách:
[studijni_plan] => Studijní plán
[mene] => → méně
[studijni_plan_povinne_predmety] => Povinné předměty
[studijni_plan_volitelne_predmety] => Povinně volitelné předměty
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[studijni_program] => Studijní program:
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[dokumenty_kod] => Kód
[dokumenty_nazev] => Název
[dokumenty_platne_od] => Platné od
[dokumenty_platne_do] => Platné do
[archiv_novinek] => Archiv novinek
[submenu_novinky_rok_title] => Zobrazit novinky na daný rok
[stahnout] => stáhnout
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[api_obor_druh_D] => Doktorský studijní obor
[paticka_mapa_alt] =>
[studijni_obor] => Studijní obor
[studijni_forma] => Forma studia
[studijni_dobastudia] => Doba studia
[studijni_kapacita] => Kapacita
[den_kratky_3] => st
[den_kratky_5] => pá
[den_kratky_0] => ne
[den_kratky_4] => čt
[den_kratky_2] => út
[novinky_kategorie_1] => Akce VŠCHT Praha
[novinky_kategorie_2] => Důležité termíny
[novinky_kategorie_3] => Studentské akce
[novinky_kategorie_4] => Zábava
[novinky_kategorie_5] => Věda
[novinky_archiv_url] => /novinky
[novinky_servis_archiv_rok] => Archiv z roku
[novinky_servis_nadpis] => Nastavení novinek
[novinky_dalsi] => zobrazit další novinky
[novinky_archiv] => Archiv novinek
[intranet_odkaz] => http://intranet.vscht.cz/
[intranet_text] => Intranet
[den_kratky_6] => so
[den_kratky_1] => po
[logo_mobile_href] => /
[logo_mobile] =>
[mobile_over_nadpis_menu] => Menu
[mobile_over_nadpis_search] => Hledání
[mobile_over_nadpis_jazyky] => Jazyky
[mobile_over_nadpis_login] => Přihlášení
[menu_home] => Domovská stránka
[zobraz_desktop_verzi] => zobrazit plnou verzi
[zobraz_mobilni_verzi] => zobrazit mobilní verzi
[fakulta_FTOP_odkaz] => http://ftop.vscht.cz/
[paticka_mapa_odkaz] =>
[nepodporovany_prohlizec] => Ve Vašem prohlížeči se nemusí vše zobrazit správně. Pro lepší zážitek použijte jiný.
[preloader] => Počkejte prosím chvíli...
[hledani_nadpis] => hledání
[hledani_nenalezeno] => Nenalezeno...
[hledani_vyhledat_google] => vyhledat pomocí Google
[social_li_odkaz] =>
[social_in_odkaz] => https://www.instagram.com/vodavscht/
[social_in_title] => Instagram ústavu
[novinka_publikovano] => Publikovano:
[novinka_datum_konani] => Datum konani:
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[2263] => stdClass Object
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[seo_desc] => Ústav technologie vody a prostředí
[autor] =>
[autor_email] =>
[obsah] =>
[urlnadstranka] =>
[ogobrazek] =>
[pozadi] =>
[iduzel] => 2263
[canonical_url] =>
[skupina_www] => Array
(
)
[url] => /home
[sablona] => stdClass Object
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[class] => stranka_novinky
[html] =>
[css] =>
[js] =>
[autonomni] => 1
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)
[2270] => stdClass Object
(
[nazev] => Ústav technologie vody a prostředí
[seo_title] => O ústavu
[seo_desc] =>
[autor] =>
[autor_email] =>
[obsah] =>
[urlnadstranka] =>
[ogobrazek] =>
[pozadi] =>
[iduzel] => 2270
[canonical_url] =>
[skupina_www] => Array
(
)
[url] => /o-ustavu
[sablona] => stdClass Object
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[class] => boxy
[html] =>
[css] =>
[js] => $(function() {
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setInterval(function () { $('.homebox_slider:not(.stop)').each(function () { slide($(this),true); }); },5000);
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function CountDownIt(selector) {
var el=$(selector);foo = new Date;
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if(hodin<10) {unixtime='0'+hodin;}
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el.html(dnu+':'+hodin+':'+minut+':'+unixtime);
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function slideTo(el,cislo) {
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el.find('.slider_puntiky a.puntik'+cislo).addClass('selected');
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[seo_desc] =>
[autor] =>
[autor_email] =>
[obsah] =>
[iduzel] => 3732
[canonical_url] =>
[skupina_www] => Array
(
)
[url] => /studium
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(
[class] => boxy
[html] =>
[css] =>
[js] => $(function() {
setInterval(function () { $('*[data-countdown]').each(function() { CountDownIt('#'+$(this).attr("id")); }); },1000);
setInterval(function () { $('.homebox_slider:not(.stop)').each(function () { slide($(this),true); }); },5000);
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var hodin = 1*parseInt(unixtime / (3600)); unixtime=unixtime-(hodin*(3600));
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if(dnu<10) {unixtime='0'+dnu;}
if(hodin<10) {unixtime='0'+hodin;}
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function slide(el,vlevo) {
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el.find('.slider_puntiky a').removeClass('selected');
el.find('.slider_puntiky a.puntik'+cislo).addClass('selected');
return false;
}
function slideTo(el,cislo) {
if(el.length<1) return false; var sirka=el.width(); var pocet=el.find('.content .homebox').length-1; if(cislo<0 || cislo>pocet) return false;
el.find('.content').animate({'left':-1*cislo*sirka});
el.find('.slider_puntiky a').removeClass('selected');
el.find('.slider_puntiky a.puntik'+cislo).addClass('selected');
return false;
}
[autonomni] => 1
)
)
[3733] => stdClass Object
(
[nazev] => Věda a výzkum
[seo_title] => Věda a výzkum
[seo_desc] =>
[autor] =>
[autor_email] =>
[obsah] => Ústav technologie vody a prostředí se podílí na výzkumných projektech ve všech oblastech technologie vody. Naši pracovníci pravidelně publikují v odborných časopisech a na konferencích. Z hlediska výzkumu je zásadní práce našich doktorandů a do výzkumu jsou rovněž aktivně zapojeni studenti magisterského a bakalářského studia v rámci svých diplomových prací, případně ve svém volném čase během studia. Jejich práci je možné shlédnout při každoroční soutěži SVOČ.
[urlnadstranka] =>
[iduzel] => 3733
[canonical_url] =>
[skupina_www] => Array
(
)
[url] => /veda-a-vyzkum
[sablona] => stdClass Object
(
[class] => boxy
[html] =>
[css] =>
[js] => $(function() {
setInterval(function () { $('*[data-countdown]').each(function() { CountDownIt('#'+$(this).attr("id")); }); },1000);
setInterval(function () { $('.homebox_slider:not(.stop)').each(function () { slide($(this),true); }); },5000);
});
function CountDownIt(selector) {
var el=$(selector);foo = new Date;
var unixtime = el.attr('data-countdown')*1-parseInt(foo.getTime() / 1000); if(unixtime<0) unixtime=0;
var dnu = 1*parseInt(unixtime / (3600*24)); unixtime=unixtime-(dnu*(3600*24));
var hodin = 1*parseInt(unixtime / (3600)); unixtime=unixtime-(hodin*(3600));
var minut = 1*parseInt(unixtime / (60)); unixtime=unixtime-(minut*(60));
if(unixtime<10) {unixtime='0'+unixtime;}
if(dnu<10) {unixtime='0'+dnu;}
if(hodin<10) {unixtime='0'+hodin;}
if(minut<10) {unixtime='0'+minut;}
el.html(dnu+':'+hodin+':'+minut+':'+unixtime);
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function slide(el,vlevo) {
if(el.length<1) return false; var leva=el.find('.content').position().left; var sirka=el.width(); var pocet=el.find('.content .homebox').length-1;
var cislo=leva/sirka*-1; if(vlevo) { if(cislo+1>pocet) cislo=0; else cislo++; } else { if(cislo==0) cislo=pocet-1; else cislo--; }
el.find('.content').animate({'left':-1*cislo*sirka});
el.find('.slider_puntiky a').removeClass('selected');
el.find('.slider_puntiky a.puntik'+cislo).addClass('selected');
return false;
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function slideTo(el,cislo) {
if(el.length<1) return false; var sirka=el.width(); var pocet=el.find('.content .homebox').length-1; if(cislo<0 || cislo>pocet) return false;
el.find('.content').animate({'left':-1*cislo*sirka});
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el.find('.slider_puntiky a.puntik'+cislo).addClass('selected');
return false;
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[autonomni] => 1
)
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[3734] => stdClass Object
(
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[seo_title] => Spoluprace
[seo_desc] =>
[autor] =>
[autor_email] =>
[obsah] =>
[iduzel] => 3734
[canonical_url] =>
[skupina_www] => Array
(
)
[url] => /spoluprace
[sablona] => stdClass Object
(
[class] => boxy
[html] =>
[css] =>
[js] => $(function() {
setInterval(function () { $('*[data-countdown]').each(function() { CountDownIt('#'+$(this).attr("id")); }); },1000);
setInterval(function () { $('.homebox_slider:not(.stop)').each(function () { slide($(this),true); }); },5000);
});
function CountDownIt(selector) {
var el=$(selector);foo = new Date;
var unixtime = el.attr('data-countdown')*1-parseInt(foo.getTime() / 1000); if(unixtime<0) unixtime=0;
var dnu = 1*parseInt(unixtime / (3600*24)); unixtime=unixtime-(dnu*(3600*24));
var hodin = 1*parseInt(unixtime / (3600)); unixtime=unixtime-(hodin*(3600));
var minut = 1*parseInt(unixtime / (60)); unixtime=unixtime-(minut*(60));
if(unixtime<10) {unixtime='0'+unixtime;}
if(dnu<10) {unixtime='0'+dnu;}
if(hodin<10) {unixtime='0'+hodin;}
if(minut<10) {unixtime='0'+minut;}
el.html(dnu+':'+hodin+':'+minut+':'+unixtime);
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function slide(el,vlevo) {
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el.find('.slider_puntiky a').removeClass('selected');
el.find('.slider_puntiky a.puntik'+cislo).addClass('selected');
return false;
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function slideTo(el,cislo) {
if(el.length<1) return false; var sirka=el.width(); var pocet=el.find('.content .homebox').length-1; if(cislo<0 || cislo>pocet) return false;
el.find('.content').animate({'left':-1*cislo*sirka});
el.find('.slider_puntiky a').removeClass('selected');
el.find('.slider_puntiky a.puntik'+cislo).addClass('selected');
return false;
}
[autonomni] => 1
)
)
[10764] => stdClass Object
(
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[seo_title] => Život na ústavu
[seo_desc] =>
[autor] =>
[autor_email] =>
[obsah] =>
[iduzel] => 10764
[canonical_url] =>
[skupina_www] => Array
(
)
[url] => /zivot-na-ustavu
[sablona] => stdClass Object
(
[class] => boxy
[html] =>
[css] =>
[js] => $(function() {
setInterval(function () { $('*[data-countdown]').each(function() { CountDownIt('#'+$(this).attr("id")); }); },1000);
setInterval(function () { $('.homebox_slider:not(.stop)').each(function () { slide($(this),true); }); },5000);
});
function CountDownIt(selector) {
var el=$(selector);foo = new Date;
var unixtime = el.attr('data-countdown')*1-parseInt(foo.getTime() / 1000); if(unixtime<0) unixtime=0;
var dnu = 1*parseInt(unixtime / (3600*24)); unixtime=unixtime-(dnu*(3600*24));
var hodin = 1*parseInt(unixtime / (3600)); unixtime=unixtime-(hodin*(3600));
var minut = 1*parseInt(unixtime / (60)); unixtime=unixtime-(minut*(60));
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if(dnu<10) {unixtime='0'+dnu;}
if(hodin<10) {unixtime='0'+hodin;}
if(minut<10) {unixtime='0'+minut;}
el.html(dnu+':'+hodin+':'+minut+':'+unixtime);
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function slide(el,vlevo) {
if(el.length<1) return false; var leva=el.find('.content').position().left; var sirka=el.width(); var pocet=el.find('.content .homebox').length-1;
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el.find('.slider_puntiky a').removeClass('selected');
el.find('.slider_puntiky a.puntik'+cislo).addClass('selected');
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function slideTo(el,cislo) {
if(el.length<1) return false; var sirka=el.width(); var pocet=el.find('.content .homebox').length-1; if(cislo<0 || cislo>pocet) return false;
el.find('.content').animate({'left':-1*cislo*sirka});
el.find('.slider_puntiky a').removeClass('selected');
el.find('.slider_puntiky a.puntik'+cislo).addClass('selected');
return false;
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[autonomni] => 1
)
)
[3735] => stdClass Object
(
[nazev] => Kontakt
[seo_title] => Kontakt
[seo_desc] =>
[autor] =>
[autor_email] =>
[perex] => Vysoká škola chemicko-technologická v Praze
Fakulta technologie ochrany prostředí
Ústav technologie vody a prostředí
Technická 5
166 28 Praha 6 - Dejvice
Budova B, I.p., č. dveří 116
[ikona] => info
[obrazek] =>
[ogobrazek] =>
[pozadi] =>
[obsah] =>
Kontakty
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|
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|
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[urlnadstranka] => [iduzel] => 10947 [canonical_url] => [skupina_www] => Array ( ) [url] => /[error403] [sablona] => stdClass Object ( [class] => stranka_ikona [html] => [css] => [js] => [autonomni] => 1 ) ) [1485] => stdClass Object ( [nazev] => Stránka nenalezena [seo_title] => Stránka nenalezena (chyba 404) [seo_desc] => Chyba 404 [autor] => [autor_email] => [obsah] =>Chyba 404
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[nazev] => Milan Lánský
[seo_title] => Milan Lánský
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[perex] => Study of activated sludge separation problems focused on biological foams formation and their suppression
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Prof. Ing. Jiří Wanner, DrSc.
Jazyk/Language
English
Abstract
This dissertation is focused on biological foam formation and means of its suppression. Biological foam formation is one of the separation problems. Therefore physicochemical parameters connected with the separation properties of activated sludge were determined in the experiments.
The theoretical part summarizes scientific knowledge about bioflocculation process, basic types of activated sludge separation problems and types of foams in activation process. The biological foam theme is more developed in respect with mechanism of its formation and different kinds of tools allowing its control or suppression.
The purpose of the work was to study influence of enzyme additives, defoamers and mixed coagulants on the biological foam production and the separation properties of activated sludge. Than, based on the carried out research, to make decision concerning additive suitability for operational applications. Furthermore to obtain set of values of physicochemical parameters of activated sludge and biological foam enabling to find a correlation between parameters and subsequently to decide, which of these parameters are connected with the biological foam production. In the end, to specify, to which extent is the biological foam creation related to the presence of fatty compounds in wastewater.
The experimental part contains procedures for determination of the particular physicochemical parameters and methodology of microscopic analyses.
The Results and Discussion chapter describes all of realized experiments together with visually observed changes, measured data and their evaluation. The obtained results are discussed and compared with knowledge mentioned in scientific publications. There is also statistical evaluation of measured characteristics and their correlations in this chapter.
The following results ensued from the accomplished observations:
- The influence of enzyme additive I on biological foam formation was positive in one case and rather negative in another one. The system was not influenced by the enzyme additive I in four experiments.
- With respect to the biological foam creation and other monitored parameters enzyme additive II had a negative effect on wastewater treatment plant.
- Defoamer I removed biological foam from surface of aeration tank, but coincidental deterioration of the monitored parameters occurred. Only a short-term effect of defoamer I was observed.
- Semi continual dosage of defoamer II provided short-term suppression of biological foam. However, negative effects appeared in the system during application. This negative influence endured after the end of the dosing.
- Continual injection of mixed coagulant I lead to biological foam suppression together with decrease of total abundance of filamentous microorganisms.
- Improvement of separation properties of activated sludge and decrease of abundance of filamentous microorganisms was observed in certain phases of mixed coagulant II addition. This positive influence was only temporary, with an exception for sludge volume index.
- Scum index is a suitable parameter for description of processes connected with the biological foam formation and for characterization of foaming potential of activated sludge. On the other hand, the hydrophobicity determined by using the MATH test method is not suitable for this purpose.
- Extracelular polymeric substances influence the separation properties of activated sludge to wide extent. The qualitative and quantitative indications of ECP extracted from activated sludge are more informative, with respect to the used method of extraction, its efficiency and number of mechanisms participating in bioflocculation process.
- Dosing of fatty compounds into influent wastewater lead to biological foam creation.
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[platne_od] => 10.06.2015 16:05:00
[zmeneno_cas] => 10.06.2015 16:05:58.322403
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