Poboljšavanje postojećih predimenzioniranih tlačnih sustava za odvodnju u obradi otpadnih voda

master's thesis

• Title (english): Improvement of existing predimensional pressurised systems for drainage in wastewaters treatment
• Author: Gabrijela Škoro
• Mentor: Predrag Horvat (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Biochemical Engineering); (Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology); Zagreb
• Defense date and country: 2016-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

U ovom radu uzorci prikupljeni na šest različitih mjesta u sustavu odvodnje otpadnih voda u gradu Münchenu podvrgnuti su opsežnoj kemijsko-fizikalnoj analizi. Svi uzorci bili su iz dijela grada čija je visinska kota ispod razine uređaja za pročišćavanje otpadnih voda i ispod razine gravitacijskog sustava odvodnje. Temeljem rezultata dobivenih analizom ocijenjen je mogući utjecaj prikupljenih otpadnih voda (na niskim kotama) na postojeći kanalizacijski sustav prilikom njihovog pneumatskog transporta u prihvatna okna gravitacijskog sustava. Procijenjena je potreba za kemijskim i/ili fizičkim tretmanom istih. Temeljem analiza otpadne vode i režima tečenja u sustavu odvodnje, provjerena je uporabljivost literaturnih jednadžbi (uspostavljenih za predviđanje brzine nastanka H2S-a u otpadnim vodama s velikim vremenom zadržavanja) za procjenu i predviđanje nastanka plinovitog sumporovodika kao indikatora mogućeg zagađenja uličnog zraka kanalizacijskim plinovima.

Abstract (english)

In this master thesis, wastewater samples were taken from six different locations in the drainage system of the city of München and analyzed with comprehensive chemical and physical tests. All samples were from the part of the city where elevation is under the level of the device used for purification of wastewaters and under the level of gravitational drainage system. Based on the analysis results, possible influence of wastewater samples (on low elevation) has been evaluated with regards to the sewerage system during their pneumatic transport into gravitational system’s shaft for sampling. Further evaluation on chemical and/or physical treatment was performed. Based on the analysis of the wastewater samples and flow regime in the drainage system, usefulness of literature equations (made for anticipation of growth speed of H2S in wastewaters with high retention time) was checked for evaluation and prediction of emergence of H2S as an indicator of potential air pollution caused by sewerage gasses.

• Keywords: otpadna voda; H2S; KPK; BPK5; biofilm
• Keywords (english): wastewater; H2S; CSB; BSB5; biofilm
• Language: croatian
• URN:NBN: urn:nbn:hr:159:163117
• Study programme: Title: Bioprocess Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka bioprocesnog inženjerstva (magistar/magistra inženjer/inženjerka bioprocesnog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-04-26 07:31:58