The purpose of this work is to analyze waste management act of law, which based on, the waste will be managed by economy subjects. Those subjects have to prepare the documents needed to realize waste management work. At first part of this work we are observing principles and priorities of waste management and trying to introduce with the act of law which regulates trash management in EU. Then I’m presenting the rules which are valid and which regulates waste management in Lithuania. Also I’m observing main requirements which are related with waste management (law of waste management, state strategic waste management plan and act of law of waste management). Indicating separates waste streams law and principles. In the second part I’m introducing conception of method. Observing method principles of preparation of maintaining documents. Researching law which indirectly influencing preparing waste management documents and analyzing method preparation of it. Also I’m observing law, which have directly influence to preparation of waste documents. Analyzing is it difficult to prepare documents for waste management and how to full fill forms which are present in the law.

For the first time it has been conducted an integrated research of possibilities to apply different kinds of fatty wastes for biodiesel fuel production. For this reason esterification process of oil an fat rich of free fatty acids by using acid catalysts and further transesterification of the obtained product until standard requirements for biodiesel fuel have been fulfilled. Intersolubility of different components of multi-component biofuel systems, and limits of stability were investigated. Emissions of the biodiesel fuel were analyzed and fuel biological decomposition in the environment was studied. Life cycle parameters of the suggested biodiesel fuel production process were determined.

Gyvenant šių dienų Lietuvoje jau neužtenka buityje ar gamyboje susidarančių atliekų tvarkyti taip kaip buvome įpratę anksčiau. Kitaip tvarkyti atliekas skatina Europos Sajungos ir kiti tarptautiniai įsipareigojimai. Gerėjant gyventojų gyvenimo sąlygoms, išaugus vartojimui, žmonės ypač daug perka ir keičia buitinės technikos, bei kitų prekių, kurių pasekoje susidaro įvairių atliekų. Lietuvoje pasirinkta strategija įdiegiant regioninę atliekų tvarkymo sistemą, nors žvelgiant į atskiras savivaldybes, galima teigti, kad kai kuriose ši, regioninė atliekų tvarkymo sistema nėra optimaliausias variantas. Regioninės atliekų tvarkymo sistemos diegimui, apskričių savivaldybės yra įkūrusios regiono atliekų tvarkymo centrus, kurių vienas artimiausiu tikslų tai senų sąvartynų uždarymas. Kaip tik sąvartynų uždarymo klausimui spręsti galime panaudoti sprendimų paramos sistemas, o būtent, daugiakriterinę analizę. Daugiakriterinei analizei atlikti gali būti pasitelkiama keletas kompiuterinių programų, tokių kaip HYPSE ar Sprendimų analizės modulis (DAM), kurią šiame darbe ir naudojame. Sprendimų analizės modulio panaudojimui buvo nustatyti tam tikri kriterijai, o alternatyva tai kiekvienas Jurbarko rajono sąvartynas. Kiekvienas kriterijus apibūdina kiekvieną alternatyvą (sąvartyną). / These days there isn‘t enough just taking care of communal or industry waste as we all are accustomed in Lithuania. The different waste managing is Europian Union and other international commit for Lithuania. Better everyday life in Lithuania brings bigger usage, that makes people to buy more life eguipment and other everyday goods, which brings to new waste. There is a regional waste managing system strategy in Lithuania, which isn't very optimal system for some of the Lithuanian municipalities. For this purpose district local governments established regional waste management centers, whose one of the first tasks is to close old landfills. For this problem to solve we will use decision making preferences, and that is multiple criteria decision analysis. There is several computer software for applying multiple criteria decision analysis, just like HYPSE and Decision analysis module (DAM), wich one we used in this study. For use of Decision analysis module we defined criteria, and alternative was Jurbarkas district landfills. Every criteria characterizes every alternative (landfill).

Šiame magistro baigiamajame darbe autorė analizuoja nevyriausybines organizacijas, kaip vieną iš institucijų įtakojančių atliekų tvarkymo sistemą. Šio darbo tikslas yra atskleisti nevyriausybinių aplinkosauginių organizacijų vaidmenį atliekų tvarkyme. Tyrimas pradedamas atliekų tvarkymo sistemos analize, kuri atskleidžia atliekų tvarkymo principus, atskirų atliekų srautų tvarkymo ypatumus bei atliekų tvarkymo kontrolės aspektus. Antrajame skyriuje nagrinėjamas nevyriausybinių organizacijų sektorius. Atskleidžiama nevyriausybinių organizacijų apibrėžimo problematika, analizuojama nevyriausybinių organizacijų veikla išskiriant veiklos apribojimų ir lengvatų aspektus bei aptariami nevyriausybinių organizacijų veiklą reglamentuojantys teisės aktai. Trečias šio magistro baigiamojo darbo skyrius yra skirtas nevyriausybinių aplinkosauginių organizacijų analizei: atskleidžiama nevyriausybinių aplinkosauginių organizacijų sisteminės duomenų bazės nebuvimo problema, įvertinama nevyriausybinių aplinkosauginių organizacijų veikla atliekų tvarkymo srityje, pateikiami veiklos pavyzdžiai, analizuojamos visuomenės turimos žinios apie nevyriausybines aplinkosaugines organizacijas ir jų atliekamą veiklą. Apibendrinant išnagrinėtą teorinę medžiagą ir gautus tyrimo rezultatus pateikiamos išvados bei rekomendacijos ir pasiūlymai. / In this final MA work author analyzes non-governmental organizations as one of these institutions that have influence on the waste treatment system. The aim of this work is to reveal the role of non-governmental environment control organizations in waste treatment. The research starts with analysis of waste treatment system which discloses the principles of waste treatment, peculiarities of separate waste flow treatment, and aspects of waste treatment control. The second part of the work analyzes sectors of non-governmental organizations. Problematic aspects of defining non-governmental organizations are presented, practice of non-governmental organizations is analyzed by singling out aspects of practice limitations and concessions, and legal acts that specify the practice of non-governmental organizations. The third part of this work focuses on the analysis of non-governmental environment control organizations: this part reveals the problem of lack of systemic non-governmental environment control organizations data base, evaluates the practice of non-governmental environment control organizations in the area of waste treatment, presents examples of the practice, analyzes the community's knowledge about non-governmental environment control organizations and their activities. Having analyzed theoretical material and results of the survey, certain conclusions, recommendations, and suggestions are presented.

Waste management is one of the priority trends in the field of the environment protection in Lithuania. Special attention is currently paid to collection of domestic waste, reprocessing of raw material, handling of dumping sites and establishment of hazardous waste management system. Domestic waste constitutes the waste accumulated in our household. Municipality institutions are the key chain organising the management of domestic waste generated within the corresponding territory. They carry responsibility for regulation, establishment (development) and administration of this waste management system within the territory under their subordination and the usage of this system is mandatory for the local residents and economic entities within these territories. The analysis of legal documents regulating waste management indicated that the concept of regional waste management system, its establishment and management form, functions and competence is not precisely defined in the legislation. Considering the major principle „polluter pays“ applicable in the field of waste management more discussions are being raised regarding manufacturer‘s responsibility for handling packaging and defraying the costs for this waste as well as waste management on the municipal level. Regardless the fact that the tasks set for the municipalities are well implemented at the municipality of Alytus city in comparison with other big cities of Lithuania, still they are not fully achieved and their... [to full text]