Uporaba oplaščenega zeolita za odstranjevanje organske snovi iz kompostne vode

Hren, Maša

| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

First page > Show document

Show document

Title:	Uporaba oplaščenega zeolita za odstranjevanje organske snovi iz kompostne vode
Authors:	ID Hren, Maša (Author) ID Simonič, Marjana (Mentor) More about this mentor... ID Fakin, Tomaž (Comentor)
Files:	UN_Hren_Masa_2016.pdf (3,25 MB) MD5: ECF2A8AF6B311451021719BD711B63B3
Language:	Slovenian
Work type:	Bachelor thesis/paper
Typology:	2.11 - Undergraduate Thesis
Organization:	FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:	V diplomskem delu smo proučevali odstranjevanje huminske kisline iz modelnih in kompostnih vod z adsorpcijo na zeolit. Testirali smo štiri različne sintetične zeolite: ZSM-5 Silicalite, ZSM-5 MFI:14-19, ZP-13X, ZP-4A-TSR. Ker se je kot najprimernejši izkazal ZSM-5 Silicalite, smo ga granulirali ter granule oplastili s TiO2. Proučevali smo učinkovitost oplaščenega zeolita in neoplaščenega zeolita za adsorpcijo huminske kisline iz modelne in kompostne vode. Poskuse smo izvajali v koloni z nasutim slojem granul, pri spreminjanju pretoka in pH modelne vode. Pri pretoku 4 mL/min smo na podlagi izmerjenih absorbanc pri 254 nm ugotovili, da je največji izkoristek v kislem pH modelne vode, in sicer za oplaščen zeolit 23,4 % in za neoplaščen zeolit 13,9 %. Pri adsorpciji pod pogoji kislega in bazičnega pH je bil izkoristek adsorpcije višji pri uporabi oplaščenega zeolita napram uporabi neoplaščenega zeolita, ravno obratno pa je bilo pri nevtralnem pH. Pretok smo zmanjšali na 2 mL/min in ponovili poskus z nevtralnim pH modelne vode, pri čemer se je izkazalo, da je izkoristek višji pri uporabi oplaščenega zeolita, in sicer 32,4 % za oplaščen in 26,5 % za neoplaščen zeolit. Poskuse smo na enak način izvedli še s kompostno vodo, pri čemer smo spreminjali pretok. Izkoristek adsorpcije z uporabo oplaščenega proti neoplaščenemu zeolitu v kompostni vodi se je pri pretoku 0,5 mL/min zvišal za 7,0 % in pri pretoku 2 mL/min za 9,9 %.
Keywords:	zeolit, adsorpcija, kompostna voda, oplastitev s TiO2, čiščenje vode
Place of publishing:	Maribor
Publisher:	[M. Hren]
Year of publishing:	2016
PID:	20.500.12556/DKUM-61151
UDC:	549.67:628.16(043.2)
COBISS.SI-ID:	20316950
NUK URN:	URN:SI:UM:DK:ELV9TLLO
Publication date in DKUM:	16.09.2016
Views:	2637
Downloads:	183
Metadata:
Categories:	KTFMB - FKKT
:	Copy citation

Average score:	(0 votes)
Your score:	Voting is allowed only for logged in users.
Share:

Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Secondary language

Language:	English
Title:	The Usage of Coated Zeolita for Removing Organic Matter from Compost Water
Abstract:	In this thesis we studied the method of removing humic acid from model and compost waters by using zeolite adsorption. Therefore, we tested four different synthetic zeolites: ZSM-5 Silicalite, ZSM-5 MFI:14-19, ZP-13X and ZP-4A-TSR. Since ZSM-5 Silicalite proved to be the most suitable, it was granulated and coated in TiO2. Hence, we proceeded to study the efficiency of the modified and the non-modified zeolites when used for adsorbing humic acid from model and compost waters. The experiments were conducted on a granular column with several alterations to the flow and to the pH of the model water. With the flow rate at 4 mL/min and measured absorbance levels at 254 nm, we concluded that the highest efficiency was in the acidic pH of the model water. Namely, the efficiency of the modified zeolite was at 23,4 %, while the non-modified zeolite tested at 13,9 %. In regards to the adsorption efficiency in the acidic and the basic pH, the modified zeolite proved to be more efficient compared to the non-modified. However, this cannot be said for the neutral pH, where the behaviour proved to be quite the opposite. Namely, the flow was reduced to 2 mL/min and the experiment was conducted once again with a neutral pH model water. The results demonstrated that the efficiency of the modified zeolite was higher, that is at 32,4 %, while the non-modified zeolite tested at 26,5 %. The experiments for compost water were conducted in the same manner, with several alterations to the flow. The adsorption efficiency of the modified zeolite in compost water showed an increase in comparison to the non-modified zeolite. At the flow rate of 0,5 mL/min, there was an increase of 7,0 %, while the flow rate of 2 mL/min raised the efficiency by 9,9 %.
Keywords:	zeolite, adsorption, compost leachate, TiO2 modification, water treatment

Comments

Leave comment

You must log in to leave a comment.

Comments (0)

0 - 0 / 0

There are no comments!

Back