Interakcije vodotopnih polimerov z aktivnim blatom

diplomsko delo

Sara Perša (Author), Gabriela Kalčíková (Mentor)

Abstract

Homopolimeri in kopolimeri poliakrilne kisline so podskupina vodotopnih polimerov, ki jih pogosto uporabljajo pri proizvodnji kozmetičnih izdelkov. Opravljajo različne naloge in se uporabljajo v velikih količinah, zaradi njihove definicije ter neznanega vpliva na okolje pa niso vključeni v evropsko zakonodajo. Posledično podatki o njihovi rabi in izpustih niso znani. V okviru diplomske naloge smo raziskali interakcije kopolimera poliakrilne kisline z aktivnim blatom. Spremljali smo adsorpcijo kopolimera na aktivno blato, vpliv na usedljivost in aktivnost samega blata. Ugotovili smo, da adsorpcija s časom narašča, pH pa nanjo nima večjega vpliva. Prisotnost kopolimera je zmanjšala usedljivost blata, iz naših rezultatov nismo mogli sklepati, ali kopolimer na aktivnost vpliva ali ne. Z gotovostjo lahko rečemo, da vodotopni polimeri interagirajo z aktivnim blatom v bioloških čistilnih napravah in zato je v prihodnosti raziskovanje njihovega vpliva na aktivno blato nujno potrebno.

Keywords

kopolimer poliakrilna kisline;vodotopni polimer;aktivno blato;adsorpcija;čiščenje odpadnih vod;diplomska dela;

Data

Language:	Slovenian
Year of publishing:	2023
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher:	[S. Perša]
UDC:	628.31:678(043.2)
COBISS:	163799043
Views:	8
Downloads:	2
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Interactions of water-soluble polymers with activated sludge
Secondary abstract:	Homopolymers and copolymers of polyacrylic acid are a subgroup of water-soluble polymers commonly used in the manufacture of cosmetic products. They perform a variety of tasks and are used in large quantities, but their definition and unknown environmental impact mean they are not covered by European legislation. As a result, data on their use and emissions are not known. In the framework of the thesis, the interactions of a polyacrylic acid copolymer with activated sludge were investigated. The adsorption of the copolymer on the activated sludge, the effect on the settleability and the activity of the sludge itself were monitored. We found that adsorption increases with time and is not significantly affected by pH. The presence of the copolymer reduced sludge sedimentation and we could not conclude from our results whether or not the activity was affected by the copolymer. It is safe to say that water-soluble polymers interact with activated sludge in biological wastewater treatment plants and therefore future research on their impact on activated sludge is urgently needed.
Secondary keywords:	copolymer of polyacrylic acid;adsorption;activated sludge;water-soluble polymer;Polimeri;Univerzitetna in visokošolska dela;
Type (COBISS):	Bachelor thesis/paper
Study programme:	1000372
Thesis comment:	Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, UNI Kemijsko inženirstvo
Pages:	25 str.
ID:	19908979