Mogućnosti primjene komunalnog mulja u poljoprivredi i uzgoju energetskih kultura

master's thesis

• Title (english): Application possibilities of sewage sludge in agriculture and energy crop production
• Author: Marija Jakopec
• Mentor: Tomislav Karažija (mentor)
• Committee member: Tomislav Karažija (predsjednik povjerenstva)
• Committee member: Milan Poljak (član povjerenstva)
• Committee member: Josip Leto (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Plant Nutrition); Zagreb
• Defense date and country: 2021-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Uređaji za pročišćavanje otpadnih voda su postrojenja na kojima se tehnološkim procesima vrši pročišćavanje otpadnih voda i poboljšanje njene kakvoće kako bih se ona mogla ispustiti u prirodne primjenike. Kao nusprodukt pročišćavanja nastaje mulj- polukruta tvar koja se sastoji od organske tvari, mikro i makronutrijenata te štetnih tvari. Visoka razina organske tvari, dušika, fosfora i kalija te esencijalnih teških metala čine mulj dobrim poboljšivačem tla i organskim gnojivom koje poboljšava fizikalne, kemijske i biološke značajke tla te pruža pristupačan izvor hranjiva biljkama. Primjenom mulja na tlo se u njega unose i neesencijalni teški metali i organski onečišćivači koji u velikim količinama mogu predstavljati rizik okolišu i zdravlju ljudi, biljaka i životinja. Energetske kulture su brzorastuće vrste koje razvijaju veliku biomasu te se uzgajaju za potrebe proizvodnje energije. Mogu uspjevati u različitim okolišnim uvjetima, imaju niske zahtjeve prema tlu te mogu podnjeti veće razine toksičnih tvari. Korištenjem mulja u uzgoju energetskih kultura se ispoljavaju sve pozitivne značajke mulja, a negativne značajke mulja ne utječu na rast i prinos kulture u značajnoj mjeri. Cilj ovog rada je dati sažeti pregled literature o mogućnostima primjene komunalnog mulja u poljoprivredi i uzgoju energetskih kultura, pozitivnim i negativnim utjecajima mulja i legislativama vezanima uz primjenu mulja na poljoprivredne površine na razini europske Unije i Republike Hrvatske.

Abstract (english)

Urban wastewater treatment plants are plants in which wastewater undergoes technical processes of purification and quality improvement so that it could be discharged into natural recievers. Byproduct of purification is sludge- semisolid supstance which includes organic matter, micro- and macronutrinets and toxic supstances. High organic matter, nitrogen, phosphorus and potassium content and essential heavy metal content make sewage sludge a good soil conditioner and organic fertilizer. Sewage sludge improves soil physical, chemical and biological properties and is a source of easily available plant nutrients. With application of sewage sludge onto the soil, heavy metals and organic pollutants are also incorporated into the soil. They pose a risk for the environment and health of humans, animals and plants. Energy crops are fast-growing crops and are used for energy production. Energy crops can grow in different environmental conditions, have low soil requirements and are resistent to high toxic supstance content. Usage od sewage sludge in energy crop production shows positive benefits of sewage sludge while negative properties do not inhibit plant growth and yield to a significant extent. The aim of this paper is to summarize available literature on application possibilities of sewage sludge in agriculture and energy crop production, sewage sludge benefits and drawbacks and legislation concerning sewage sludge in European Union and the Republic of Croatia.

• Keywords: komunalni mulj; uređaji za pročišćavanje otpadnih voda; energetske kulture
• Keywords (english): sewage sludge; wastewater treatment; energy crops
• Language: croatian
• URN:NBN: urn:nbn:hr:204:208403
• Study programme: Title: Renewable energy sources in agriculture; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra obnovljivih izvora energije u poljoprivredi (magistar/magistra obnovljivih izvora energije u poljoprivredi)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2021-11-29 12:12:18