Adsorpcijsko čiščenje obarvane odpadne vode z biološko razgradljivimi adsorbenti

Kotnik, Kaja (author), Klančnik, Maja (mentor)

Namen diplomskega dela je bil ugotoviti adsorpcijsko sposobnost biološko razgradljivih snovi, ki jih lahko najdemo v večini gospodinjstev in sadjarsko-predelovalni industriji kot odpadek, pri čiščenju obarvane, odpadne vode s pigmentno sitotiskarsko barvo, ki se lahko uporabi za tisk na papir in tekstil ter pri čiščenju obarvane vode z direktnim barvilom, ki se uporablja za barvanje celuloznih vlaken. Kot biološko razgradljivi adsorbenti so bili uporabljeni: posušeni in zmleti olupki jabolka, limone, pomaranče, mandarine, avokada ter sveža (prezrela) banana, polsušena banana in bananin olupek. Kot že uveljavljeni adsorbenti pa so bili primerjalno uporabljeni: aktivno oglje v granulah in v prahu, zeolit, glinica in hitozan. Adsorpcijsko čiščenje pripravljenih obarvanih odpadnih vod je bilo preučevano pri sobni temperaturi en do tri tedne. Učinkovitost čiščenja je bila določena z vizualno in spektrofotometrično oceno obarvanosti odpadne vode. Pri obeh obarvanih odpadnih vodah sta se kot odlična biološko razgradljiva adsorbenta pokazala polsušena banana in posušen zmlet limonin olupek, ki sta bila celo učinkovitejša od komercialno uporabljenega aktivnega oglja. Adsorpcijsko delovanje v obarvanih odpadnih vodah pa so pokazali tudi zmleti, posušeni jabolčni, pomarančni in mandarinini olupki. Pri vodi, onesnaženi z barvilom, sta visoko stopnjo razbarvanja z limoninimi olupki in polsušeno banano dosegla tudi hitozan in glinica.

• Language: Slovenian
• Keywords: adsorpcija, biološko-razgradljivo, tiskarska barva, direktno barvilo, odpadna voda
• Work type: Bachelor thesis/paper
• Organization: NTF - Faculty of Natural Sciences and Engineering
• Year: 2017
• PID: 20.500.12556/RUL-95406
• Publication date in RUL: 20.09.2017

KOTNIK, Kaja, 2017, Adsorpcijsko čiščenje obarvane odpadne vode z biološko razgradljivimi adsorbenti [online]. Bachelor’s thesis. [Accessed 14 March 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=95406

Secondary language

• Language: English
• Title: Adsorption treatment of coloured wastewater with biologically degradable adsorbents

Abstract

The purpose of the thesis was determination of the adsorption ability of biologically degradable materials, which can be found in most households and fruit processing industry as waste, in the process of cleaning coloured wastewaters polluted with the pigment screen printing colour, which can be used for printing on paper and textiles, and direct dye, used for dyeing cellulose fibres. Dried and grounded peels of apples, lemons, oranges, mandarins, avocados, and fresh (ripe) banana, semi-dried banana and banana peel were used as biodegradable adsorbents. For comparison, the already established adsorbents such as granular and powdered activated carbon, zeolite, alumina, and chitosan were used. Adsorptive treatment of prepared coloured wastewater was studied at room temperature for one to three weeks. Treatment efficiency was determined by visual and spectrophotometric assessment of the colour of wastewater. Semi-dried banana and dried, grounded dried lemon peels gave the best results among biodegradable adsorbents in the treatment of both coloured wastewaters and were even more effective than the commercially used activated carbon. Grounded dried apple, orange and mandarin peels also showed the adsorption ability in the coloured wastewaters. Chitosan and alumina achieved as a high level of discoloration

• Keywords: adsorption, biodegradable, ink, direct dye, waste water