Kontroler količine blata na industrijskih čistilnih napravah

Pavlič, Matej (author), Kramar, Peter (mentor)

V diplomskem delu bom predstavil kontroler količine blata, ki služi za odvzem blata iz odpadne vode. Najprej sem se moral seznaniti s celotnim postopkom čiščenja odpadnih vod v industriji in s kemijskimi procesi, ki so prisotni preden se na čistilni napravi nabere blato, ki ga je potrebno kasneje odstraniti. Ugotovil sem, da je za moj problem najbolj primerna elektronika s senzorjem, ki na podlagi sprejemnih in oddajnih diod meri debelino blata na vodi. Elektronika pa s prejetimi informacijami s senzorja prilagaja hitrost zajemanja preko frekvenčnika. Pri montaži predstavljenega kontrolerja količine blata je potrebno v začetku spremljati proces, da se nastavi optimalen odvzem blata iz vode saj gre lahko blato ostopoma proti dnu in se pomeša s čisto vodo v primeru, da je hitrost odvzema premajhna in obratno se odstrani preveč čiste vode, če je hitrost odvzema prehitra. Hitrost odvzema se pri mojem projektu regulira s pomočjo treh potenciometrov. Vsak služi nastavitvi hitrosti v odvisnosti od debeline blata. Prvi potenciometer služi za nastavitev hitrosti pri majhni količini blata, drugi potenciometer služi za nastavitev hitrosti pri večji količini blata in tretji potenciometer, ki služi za nastavitev hitrosti zajemalke pri maksimalni količini blata.

• Language: Slovenian
• Keywords: odpadne vode, blato, elektronika, senzor
• Work type: Bachelor thesis/paper
• Organization: FE - Faculty of Electrical Engineering
• Year: 2016
• PID: 20.500.12556/RUL-83751
• Publication date in RUL: 28.06.2016

PAVLIČ, Matej, 2016, Kontroler količine blata na industrijskih čistilnih napravah [online]. Bachelor’s thesis. [Accessed 31 March 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=83751

Secondary language

• Language: English

Abstract

In present thesis, the sludge blanket controller for clearing the sludge out of waste water is presented. My work started with gathering of information about industrial waste water treatment and with undrestanding the corresponding chemical processes that take place before the sludge is accumulated in the waste water cleaning device. For cleaning the accumulated sludge, the most appropriate electronics system turned out to be the electronics with a sensor that measures the sludge thickness on the water trough the receiving and transmission diodes. This system uses the information from the sensor to adjust the information capure spreed via the frequency converter. When installing the presented sludge blanket controller, first the process needs to be monitored to determine the optimal withdrawal of the sludge. In the case where the sludge removal speed is too small, the sludge can gradually sink toward the bottom and is mixed with clean water, while in the case where the sludge removal speed is to fast, too much clean water is removed. In the presented electronics, the sludge removal speed is regulated with three potentiometers, each adjusted for its own sludge thickness. The first potentiometer is used to set the speed for a small amount of sludge, the second potentiometer is used to set the speed in larger quantities of sludges and the third potentiometer, serves to adjust the speed of the dipper in the maximum quantity of sludge.

• Keywords: waste water, sludge, electronics, sensor