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Wyszukujesz frazę "water treatment plants" wg kryterium: Temat


Tytuł:
Improving the operation of the full scale wastewater treatment plant with use of a complex activated sludge model
Autorzy:
Liwarska-Bizukojc, E.
Biernacki, R.
Gendaszewska, D.
Ledakowicz, S.
Powiązania:
https://bibliotekanauki.pl/articles/207994.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
activated sludge
effluents
wastewater treatment
water treatment plants
biological waste water treatment
wastewater treatment plants
osad czynny
ścieki
stacje uzdatniania wody
biologiczne oczyszczanie ścieków
oczyszczalnie ścieków
Opis:
A complex activated sludge model implemented in BioWin software has been implemented to assure its predictability and improve the effectiveness of biological wastewater treatment in the full-scale plant in Poland. The influence of temperature and sludge retention time (SRT) on the quality of the effluent was also studied. The calibration was successfully performed according to the Good Modelling Practice Unified (GMP) protocol. Five parameters at a steady state and ten under dynamic conditions were calibrated. It occurred that in the studied wastewater treatment plant SRT should be kept at the low level sufficient to sustain nitrification.
Źródło:
Environment Protection Engineering; 2013, 39, 1; 183-195
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena zawartości metali ciężkich w wiejskich osadach ściekowych i kompostach w aspekcie ich przyrodniczego wykorzystania
An assessment of the contents of heavy metals in sewage sludge from rural area and composts, in the aspect of their natural use
Autorzy:
Rajmund, A.
Bożym, M.
Powiązania:
https://bibliotekanauki.pl/articles/338253.pdf
Data publikacji:
2013
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
kompost
metale ciężkie
osad ściekowy
wiejskie oczyszczalnie ścieków
composts
heavy metals
rural waste water treatment plants
sewage sludge
Opis:
Osady ściekowe pochodzące z wiejskich oczyszczalni ścieków powinny być zagospodarowywane przyrodniczo z uwagi na małą zawartość metali ciężkich i dużą wartość nawozową tych osadów. Zbadano całkowitą zawartość metali ciężkich w osadach ściekowych pochodzących z wiejskiej oczyszczalni ścieków i kompostach z tych osadów. Próbki osadów i kompostów poddano mineralizacji mikrofalowej w systemie zamkniętym w wodzie królewskiej, a następnie zbadano obecność Cd, Pb, Cu, Zn, Cr i Ni z wykorzystaniem spektrometru absorpcji atomowej. Przeanalizowano wpływ procesu kompostowania na zmiany zawartości tych metali w osadach. Uzyskane wyniki porównano z wartościami dopuszczalnymi według obowiązującego prawa. Stwierdzono, że zawartość metali ciężkich w badanych osadach i kompostach była bardzo mała. Uzyskane wyniki były wielokrotnie niższe od granicznych zawartości metali ciężkich w osadach stosowanych rolniczo. Zawartość większości metali była podobna zarówno w osadach, jak i kompostach. Nie stwierdzono znaczących różnic w zawartości metali ciężkich w kolejnych latach. Zarówno badane osady, jak i komposty mogą być dopuszczone do wykorzystania przyrodniczego, w tym rolniczego.
Sewage sludge from rural sewage treatment plant should be naturally utilized due to the low kontent of heavy metals and high fertilizer value. The total content of heavy metals in sewage sludgem from rural sewage treatment plants and composts from these deposits was examined in this study. Sediment and compost samples were subjected to microwave mineralization in a closed system in aqua regia, and then the presence of Cd, Pb, Cu, Zn, Cr and Ni using atomic absorption spectrom eter was examined. The influence of the composting process on the changes of content of these metals in the sediment was analyzed. The results were compared against the limit values according to the applicable law. It was found that the content of heavy metals in sediments and composts was very small. The results were many times lower than the acceptable limits of heavy metals in sludge used for agricultural purposes. The content of most metals was similar in both sediments and composts. There were no significant differences in the content of heavy metals in the following years. Both, the studiem sediments and composts may be admitted to the natural (including agricultural) use.
Źródło:
Woda-Środowisko-Obszary Wiejskie; 2013, 13, 4; 103-113
1642-8145
Pojawia się w:
Woda-Środowisko-Obszary Wiejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dewatering of conditioned sludge in small wastewater treatment plants
Autorzy:
Wolny, L.
Powiązania:
https://bibliotekanauki.pl/articles/207409.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
wastewater treatment
dewatering
filtration
polyelectrolytes
sewage sludge
sewage treatment
sewage treatment plants
water treatment plants
municipal wastewater treatment plants
wastewater treatment plants
oczyszczanie ścieków
odwadnianie
filtrowanie
polielektrolity
osady ściekowe
oczyszczalnie ścieków komunalnych
oczyszczalnie ścieków
Opis:
Parameters characterizing the dewatering process of sewage sludge in small wastewater treatment plants (WWTPs) have been analyzed. Two municipal wastewater treatment plants of comparable capacity and similar technology of sewage treatment were selected to the analysis. Comparison of dewaterability of unprepared and conditioned sludge was made. During preliminary tests, the capillary suction time (CST) of sludge conditioned with cationic polyelectrolyte was determined. Next, for the optimal doses of selected polyelectrolyte, more detailed technological experiments were conducted such as vacuum filtration and susceptibility to the gravitational thickening. Tested sludge had very low susceptibility to thickening. The final volume of unprepared tested samples after 2 hour thickening was 977.0 cm3, while the initial volume of thickened sludge was 1000 cm3.The lowest value of final hydration for conditioned sludge was 64.0%.
Źródło:
Environment Protection Engineering; 2015, 41, 2; 99-105
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agricultural use of wastewater sludge from various sources with special emphasis on total and DTPA-extractable heavy metal content
Autorzy:
Aşik, B. B.
Aydinalp, C.
Şagban, F. O. T.
Katkat, A. V.
Powiązania:
https://bibliotekanauki.pl/articles/206890.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
heavy metals
sewage sludge
sequential extraction
water treatment plants
metale ciężkie
osady ściekowe
DTRA
składniki odżywcze
przemysłowe uzdatnianie wody
Opis:
This study was conducted to evaluate wastewater sludge from various sources for agricultural utilization. The results showed that sludge from municipal and food industrial wastewater treatment plants (WWTPs) have high fertilizing value with respect to nutrients and organic matter levels. When the sludge samples were evaluated for their total heavy metal contents, the Pb, Cd and Cu concentrations in all of the sludge samples were found to be below the limit specified by Turkish regulations. However, the Cr, Ni and Zn contents of domestic type, organized industrial zone, food industry sludge samples exceeded these thresholds. Other sludges were found to be suitable for agricultural usage in terms of plant nutrient and heavy metal content. The analysis of the sludge samples from twelve different WWTP’s showed that the agricultural properties and the total and bioavailable (DTPA-extractable) heavy metal fraction varies depending on the sludge samples. Therefore discussed sludges should be evaluated separately for the agricultural utilization potential in terms of soil pollution.
Źródło:
Environment Protection Engineering; 2016, 42, 1; 45-58
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of the sewer system rinsing on the wastewater composition
Autorzy:
Sadecka, Z.
Płuciennik-Koropczuk, E.
Myszograj, S.
Suchowska-Kisielewicz, M.
Jakubaszek, A.
Powiązania:
https://bibliotekanauki.pl/articles/207804.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
sewers
pollution
sewage
sewage pumping plants
water treatment plants
biological reactor
sewage pollutions
wastewater treatment plants
kanalizacja
ścieki
przepompownie ścieków
stacje uzdatniania wody
reaktor biologiczny
zanieczyszczenia ścieków
oczyszczalnie ścieków
Opis:
The paper presents the results of research on the influence of the operational rinsing of a sewer system on the composition of raw sewage, the effectiveness of the operation of the mechanical part of a wastewater treatment plant and changes in the technological parameters of the biological reactor. The results of the research have shown an increase in sewage pollution during the rinsing of the sewer system. The value of the COD indicator increased from 799 to 1306 mg/dm3, BOD5 from 538 to 1044 mg/dm3, and total suspended solids from 259 to 1508 mg/dm3. The calculations indicate that an increase in the concentrations of pollution during the rinsing of the sewer system requires a high working efficiency of the mechanical part of the wastewater treatment plant. With a low efficiency the volume of the biological reactor can increase even by 30%.
Źródło:
Environment Protection Engineering; 2013, 39, 2; 5-13
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
General characteristics of the quantity and quality of sewage sludge from selected wastewater treatment plants in the Świętokrzyskie Province
Autorzy:
Gawdzik, J.
Długosz, J.
Urbaniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/207262.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
wastewater treatment
heavy metals
sewage pumping plants
sewage sludge
sewage treatment plants
toxicity
water treatment plants
total nitrogen
total phosphorous
total phosphorus
oczyszczanie ścieków
metale ciężkie
pompownia ścieków
osady ściekowe
oczyszczalnie ścieków
toksyczność
stałe substancje organiczne
azot całkowity
fosfor całkowity
Opis:
Five wastewater treatment plants from the Świętokrzyskie Province have been briefly described, and a general analysis of the composition and quantity of sewage sludge from the data objects has been conducted. The paper also presents various ways of management of sewage sludge. The authors analyzed sediments from the wastewater treatment plant for PE in the range of 15 000–99 999 located in Ostrowiec, Opatów, Starachowice, Skarżysko-Kamienna, and in Sandomierz. The sludge was characterized in terms of its quantity and quality, the content of heavy metals, total nitrogen, total phosphorous, and organic solids.
Źródło:
Environment Protection Engineering; 2015, 41, 2; 107-117
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy and sustainability of operation of a wastewater treatment plant
Autorzy:
Bodík, I.
Kubaská, M.
Powiązania:
https://bibliotekanauki.pl/articles/208254.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
wastewater treatment
biogas
energy utilization
sewage pumping plant
sludge digestion
toxicity
water treatment plants
anaerobic sludge digestion
energy consumption
wastewater treatment plants
oczyszczanie ścieków
biogaz
wykorzystanie energii
przepompownie ścieków
fermentacja osadów
toksyczność
stacje uzdatniania wody
fermentacja beztlenowa osadów
zużycie energii
oczyszczalnie ścieków
Opis:
The study summarises the energy consumption data obtained from the Slovak wastewater treatment plants. Overall, 51 large WWTPs using mesophilic anaerobic sludge digestion and biogas utilisation (the total capacity of 2.5 mil. p.e.) and 17 small rural WWTPs (the total capacity 15 000 p.e.) were compared in many technological and energy parameters. The average energy consumption in large WWTPs in Slovakia is 0.485 kWh/m3 and 0.915 kWh/m3 in small rural plants. The average energy demand related to BOD5 load represents the value of 2.27 kWh/kg BOD5, in Slovak plants. The specific energy production is relatively low - in average 1.2 kWh el /m3 of produced biogas and 0.1 kWh el /m 3 of treated wastewater, respectively. The average energy autarky in Slovak plants is 25.2%. Some plants have high energy autarky (>65%), despite no external biowastes being dosed to these during operation.
Źródło:
Environment Protection Engineering; 2013, 39, 2; 15-24
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The State and Needs of the Development of Water Supply and Sewerage Infrastructure in The Radzyń District
Autorzy:
Bogusz, Monika
Marzec, Michał
Malik, Arkadiusz
Jóźwiakowski, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/123674.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
water supply network
sewerage network
collective wastewater treatment plants
household wastewater treatment plants
Opis:
The paper presents the current state of water supply and sewerage infrastructure and the need for its expanding in Radzyń district. The district is located in the northern part of Lublin Voivodeship in Poland. The following communes belong to Radzyń district: the municipal commune of Radzyń Podlaski and 7 rural communes: Borki, Czemierniki, Kąkolewnica, Komarówka Podlaska, Radzyń Podlaski, Ulan-Majorat, Wohyń. The data show that the water supply network in Radzyń district is well developed. The most significant percentage of the population using the water supply network has the rural commune of Radzyń Podlaski – 99.9%, while the smallest, commune Komarówka Podlaska – 54.5%. The survey showed that there was a very large disproportion between the development of the sewerage and water supply systems. The largest percentage of the population using the sewerage network has the municipal commune of Radzyń Podlaski – 99.7%. The smallest percentage of users of collective sewage disposal systems was recorded in the rural commune of Radzyń Podlaski (7.2%). The commune of UlanMajorat does not have a sewerage system. The survey conducted in 2016 shows that 8 collective wastewater treatment plants operated in Radzyń district at that time. The total capacity of the treatment plants is over 5,300 m3/d. In 2016, Radzyń district had about 1,000 household wastewater treatment plants. The presented data show that the condition of the sanitary infrastructure in rural communes of Radzyń district is unsatisfactory and requires the investment activities mainly aimed at expanding collective sewage disposal and treatment systems as well as developing a network of household wastewater treatment plants.
Źródło:
Journal of Ecological Engineering; 2020, 21, 3; 171-179
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Condition of the Sanitary Infrastructure in the Ryki District in Poland and the Need for its Development
Autorzy:
Jóźwiakowska, Karolina
Micek, Agnieszka
Kanios, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1839635.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
district
septic tank
household wastewater treatment plants
collective wastewater treatment plants
water supply network
sewage system
Opis:
The aim of this paper was to present the current state and the need for development of the sanitary infrastructure in the communes of the Ryki District located in the Lublin Voivodeship. The Ryki District encompasses 1 urban Commune – Dęblin, 1 urban-rural Commune – Ryki and 4 rural communes: Kłoczew, Nowodwór, Stężyca and Ułęż. The paper is based on the data from the surveys conducted in all the afore-mentioned communes in 2016. In the whole district on average 71.3% of the population used the water supply network, while 42% of the inhabitants were able to discharge wastewater to the sewage system. Within the area of the Ryki District, 5 collective wastewater treatment plants with a capacity exceeding 5 m3/d functioned in 2016. The households which were not connected to the sewage network discharged wastewater mainly to non-return tanks. About 440 household sewage treatment plants were found in the surveyed communes. The overwhelming majority of such small objects in the discussed district were activated sludge systems (92%). The research carried out in 2016 proved a strong need to develop the current state of the sanitary infrastructure in the Ryki District. A particular emphasis should be placed on the wastewater management by connecting the inhabitants of urban areas to a joint sewage disposal system. Ecological awareness must be raised so as to encourage people to invest in household wastewater treatment plants, which should be used in the areas with scattered development.
Źródło:
Journal of Ecological Engineering; 2021, 22, 4; 256-264
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Condition of the Sanitary Infrastructure in the Bialski District in Poland and the Need for its Development
Autorzy:
Jóźwiakowska, Karolina
Marzec, Michał
Powiązania:
https://bibliotekanauki.pl/articles/124925.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
district
septic tank
household wastewater treatment plants
collective wastewater treatment plants
water supply network
sewerage system
Opis:
The aim of this paper was to present the current state and the need for development of the sanitary infrastructure in the communes of the Bialski District located in the Lublin Voivodeship. The Bialski District encompasses 2 urban communes: Miedzyrzec Podlaski and Terespol and 17 rural communes: Biała Podlaska, Drelów, Janów Podlaski, Kodeń, Konstantynów, Leśna Podlaska, Łomazy, Międzyrzec Podlaski, Piszcząc, Rokitno, Rossosz, Sławatycze, Sosnówka, Terespol, Tuczna, Wisznice and Zalesie. The present paper uses the data from the surveys conducted in these communes in 2016. On average, 79.2% of the population used the water supply system in the surveyed communes, while 39.4% of the inhabitants had the possibility of discharging wastewater to the sewerage system. In the area of the communes, there were 20 collective, mechanical and biological wastewater treatment plants with a capacity exceeding 5 m3/d. The households which were not connected to the wastewater network, discharged wastewater mainly to non-return tanks. In the surveyed communes, there were 4437 household wastewater treatment plants. Most of them (above 80%) were the systems with infiltration drainage, which do not ensure high efficiency of pollutants removal and may even contribute to the degradation of the groundwater quality. In order to solve the existing problems of wastewater and water management occurring in the communes where the Bialski District is located, it is necessary to further develop collective wastewater systems and equip the areas characterized by dispersed housing with highly efficient household treatment plants, e.g. constructed wetlands.
Źródło:
Journal of Ecological Engineering; 2020, 21, 5; 155-163
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Treatment of wastewater to meet the requirements for cooling water systems in jordan’s nuclear plants
Autorzy:
Al-Rawajfeh, A.E.
Araj, K.
Powiązania:
https://bibliotekanauki.pl/articles/184961.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cooling water
nuclear plants
wastewater treatment
scale deposition
schładzanie wody
elektrownia jądrowa
oczyszczanie ścieków
Opis:
Scaling and corrosion associated with the use of natural hard water in cooling towers during recirculation pose great problems from both economical and technical points of view, such as decreased system efficiency and increased frequency of chemical cleaning. Treated municipal wastewater (MWW) is a promising alternative to freshwater as power plant cooling system makeup water, especially in arid regions. In this work, hybrid systems of salt precipitation (SP), nanofiltration (NF) and reverse osmosis (RO) were investigated, as potential pretreatment processes for wastewater reuse as cooling water in the planned Jordan nuclear power plants. The As-Samra wastewater was used to calculate the potential of carbonate and sulfate scale formation. The results were compared to scale potentials from Palo Verde wastewater. Four cases were investigated; SP, NF, SP-RO and NF-RO. The SP pretreatment cases showed the highest monovalent to divalent ratio because of a high removal of Ca and Mg and addition of Na from the chemicals of the SP step. The NF pretreatment cases, showed the lowest calcium sulfate scale potential and this potential decreases with the % pretreatment. The scale amount increases very slightly with concentration times when the SP and NF product is desalinated by RO step.
Źródło:
Chemical and Process Engineering; 2013, 34, 2; 253-267
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Household Wastewater Treatment Plants with Drainage System on the Quality of Groundwater in the Lublin Province, Poland
Autorzy:
Jóźwiakowski, Krzysztof
Marzec, Michał
Listosz, Agnieszka
Gizińska-Górna, Magdalena
Micek, Agnieszka
Pytka, Aneta
Pochwatka, Patrycja
Rybczyńska-Tkaczyk, Kamila
Powiązania:
https://bibliotekanauki.pl/articles/1839295.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
household wastewater treatment plants
drainage system
water quality
wells
groundwater
physical pollutants
chemical pollutants
microbiological pollutants
Opis:
The work presented the assessment of household wastewater treatment plants with drainage systems on the quality of groundwater in dug wells and deep water wells in the area of 3 selected communes (Drelów, Dębowa Kłoda and Urszulin), located in the Lublin province in south-eastern Poland. The investigations of the physicochemical composition of water from selected 28 dug wells and 2 deep water wells were conducted from June to July 2020, involving 9 measurement series. The microbiological studies consisted in 4 measurement series. The composition of the wastewater from primary settling tanks discharged to soil via drainage systems located in the vicinity of considered wells was also examined on a single occasion. The studies indicate that the water from wells are significantly polluted with ammonia, nitrites, as well as compounds of natural origin: iron and manganese. The presence of microbiological pollution of fecal origin was noted. The studies clearly indicate the possible pollution of the analyzed well waters with domestic sewage discharged to soil via drainage systems. Therefore, it necessary to take the actions aimed at improving the quality of groundwater in the Lublin province, including limitation of drainage systems, especially in the areas with unfavorable subsurface and hydrological conditions as well as low water supply coverage. The need to introduce changes in legal regulations and strategies for the development of technical infrastructure in counties, favoring the most efficient, as well as simple and inexpensive technologies, was indicated.
Źródło:
Journal of Ecological Engineering; 2021, 22, 3; 18-39
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of ultrafiltration and nanofiltration processes for the elimination of three selected emerging contaminants: amitriptyline hydrochloride, methyl salicylate and 2-phenoxyethanol
Autorzy:
Benítez, F. J.
Real, F. J.
Acero, J. L.
Casas, F.
Powiązania:
https://bibliotekanauki.pl/articles/207379.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
COD
municipal wastewater treatment plants
water quality
filtration process
ChzT
miejskie oczyszczalnie ścieków
jakość wody
proces filtracji
Opis:
Three emerging contaminants: amitriptyline hydrochloride (AH), methyl salicylate (MS) and 2-phenoxyethanol (PE) were treated by means of filtration processes for their elimination from ultrapure (UP) water in a first stage, and from three water matrices (surface water from a reservoir, and two effluents from two municipal wastewater treatment plants) in a second stage. For this purpose, ultrafiltration and nanofiltration membranes were used in a cross-flow laboratory equipment. The permeate fluxes at the steady state were determined, and the resistances to the permeate flux were established. It was found that the inherent resistance of the clean membranes provided a much larger resistance than the fouling resistance. The retention coefficients for each individual contaminant were evaluated, as well as the retention coefficients referred to three water quality parameters: absorbance at 254 nm, COD and TOC. These parameters provide the effectiveness of the filtration processes for the elimination of the organic matter present in the selected water matrices.
Źródło:
Environment Protection Engineering; 2017, 43, 3; 125-141
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ways of improving efficiency of wastewater treatment for agriculture
Sposoby usprawnienia wydajności oczyszczania ścieków w rolnictwie
Autorzy:
Myrzahmetov, M. M.
Ryskulbekova, L. M.
Powiązania:
https://bibliotekanauki.pl/articles/908439.pdf
Data publikacji:
2013
Wydawca:
Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
Tematy:
obrotowe obiegi wodne
zamknięte obiegi wodne
wydajność oczyszczalni ścieków
woda w rolnictwie
water cycle
efficiency of wastewater treatment plants
water in agriculture
Opis:
Obrotowe i zamknięte obiegi wodne to najbardziej obiecujące sposoby na ograniczenie zużycia słodkiej wody. Prawdopodobnie w przyszłości oczyszczone ścieki staną się głównym źródłem wody w rolnictwie. Słodka woda będzie dostępna dla zapotrzebowania domowego.
Modern human civilization is characterized by one of the actual problem, the protection of natural environment from pollution and depletion of water resources.
Źródło:
Ekonomia i Środowisko; 2013, 4; 266-275
0867-8898
Pojawia się w:
Ekonomia i Środowisko
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena poziomu rozwoju infrastruktury technicznej
Evaluation of the level of technical infrastructure development
Autorzy:
Jarosz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/290070.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
infrastruktura techniczna
sieć wodociągowa
sieć kanalizacyjna
oczyszczalnia ścieków
technical infrastructure
water-pipe network
sewerage system
sewage treatment plants
Opis:
Przedstawiono analizę poziomu rozwoju infrastruktury technicznej w ujęciu przestrzennym tj. w przekroju województw. Do oceny wybrano siedem cech diagnostycznych charakteryzujących stan infrastruktury technicznej i zasoby mieszkaniowe na obszarach wiejskich w poszczególnych regionach. W opracowaniu wykorzystano prostą metodę w postaci średniej znormalizowanych wartości cech diagnostycznych i uzyskano wartość miernika umożliwiającego ocenę poziomu rozwoju infrastruktury technicznej. Oszacowany poziom rozwoju infrastruktury technicznej i zasobów mieszkaniowych mieścił się w zakresie - 0,87 do 1,35, co wskazuje na bardzo duże zróżnicowanie w tym zakresie.
Analysis of the level of technical structure development in spatial terms, i.e. by provinces, is presented. Seven diagnostic features characterizing the state of the technical infrastructure and housing resources in rural areas in individual regions have been chosen for the analysis. A simple method has been employed, consisting in using the mean of standardized values of diagnostic features. The measure value obtained this way has made it possible to evaluate the level of the technical infrastructure development. The estimated level of the technical infrastructure development and housing resources ranges from - 0.87 to 1.35, which points to considerable differentiation in that respect.
Źródło:
Inżynieria Rolnicza; 2008, R. 12, nr 2(100), 2(100); 51-55
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł

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