Temat: Desalination - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Innovative Approach in Creation of Integrated Technology of Desalination of Mineralized Water
Autorzy:: Trus, Inna
Radovenchyk, Iaroslav
Halysh, Vita
Skiba, Margarita
Vasylenko, Inna
Vorobyova, Viсtoria
Hlushko, Olena
Sirenko, Ludmila
Powiązania:: https://bibliotekanauki.pl/articles/124170.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: membrane
filtering
desalination
reagent precipitation
permeate
Opis:: In this study, the optimum parameters of membrane desalinization of model solutions were determined and the required efficiency was achieved. Methods for stabilizing treatment of water before barometric desalination were developed to improve the efficiency of membranes. Methods of reagent processing of concentrates after barometric water were proposed to create a low-waste technologies for demineralization of water. It was shown that the precipitate can be used as an additive for cements and a sulfate activator for slag-portland cement.
Źródło:: Journal of Ecological Engineering; 2019, 20, 8; 107-113
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Effect of Tillage and Humidification Conditions on Desalination Properties of Chickpea (Cicer arietinum L.)
Autorzy:: Lavrenko, N.
Lavrenko, S.
Revto, O.
Lykhovyd, P.
Powiązania:: https://bibliotekanauki.pl/articles/125214.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: chickpea
irrigation
plowing depth
salinity
desalination
Opis:: Chickpea is supposed to be a prospective crop for soil reclamation. The goal of this study was to determine the effect of tillage and humidification conditions on the chickpea desalination properties. The study was conducted by using the randomized split plot method in four replications during 2012–14 at the Agricultural Cooperative Farm «Radianska Zemlia» of Kherson region in Ukraine. The results of the study showed that the maximum salts uptake of 2.516 t ha^-1 from the 0–50 cm soil layer and the maximum chickpea grain yield of 3.33 t ha^-1 were provided under irrigated conditions with moldboard plowing on the depth of 28–30 cm. It was established that the higher chickpea grain yield is, the greater the salts uptake rate from the soil. It was also proven that the plowing depth has no significant effect on the chickpea grain yield and desalination properties. It should be mentioned that chickpea showed limited desalination properties. The crop was not able to adsorb all the sodium from the soil when irrigated with saline water.
Źródło:: Journal of Ecological Engineering; 2018, 19, 5; 70-75
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Enhancing the Productivity of a Roof-Type Solar Still Utilizing Alumina Nanoparticles and Vacuum Pump
Autorzy:: Mutlq, Eslam
Hamdan, Mohammad
Al Asfar, Jamil
Powiązania:: https://bibliotekanauki.pl/articles/124311.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: solar still
vacuum pump
nanoparticles
water desalination
Opis:: Unlike conventional fresh water producing systems, from saline or brackish water, the innovative solar water producing systems are efficient and effective. Experiments were conducted on two identical roof-type solar stills and simultaneously tested under the same weather conditions. One of these stills was modified by integrating a vacuum pump to lower the pressure inside while the other still was used as a reference unit. Different concentrations of Al₂O₃ nanoparticles were chosen, 0.2%, 0.4%, and 0.6%, and used with water inside the modified still. It was verified that the modified still, without nanoparticles, yields 34.84% more production than the conventional still. In addition, the modified still with a 0.4% of Al₂O₃ nanoparticles produced the highest percentage of distilled water, 44.42% in comparison to the one without the use of Al₂O₃ nanoparticles, followed by 37.94% and 24.07% for 0.6% and 0.2% of Al₂O₃ nanoparticles, respectively.
Źródło:: Journal of Ecological Engineering; 2019, 20, 4; 187-193
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Removal of Salinity using Interaction Mangrove Plants and Bacteria in Batch Reed Bed System Reactor
Autorzy:: Chimayati, Rachmi Layina
Titah, Harmin Sulistiyaning
Powiązania:: https://bibliotekanauki.pl/articles/125258.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: bio-desalination
mangrove
bacteria
reed bed system
Opis:: The current method of seawater bio-desalination can effectively provide freshwater. This method works by separating the salt contained in water into clean water with a lower salinity. In this study, the researchers conducted an experiment of the bio-desalination method by combining mangrove plant and Vibrio alginolyticus bacteria as well as the presence of a filter layer component composed of sand and gravel in red beed system reactor. The concept of phytotechnology was to utilize plants as environmental technology capable of solving environmental problems. In contrast, the term phytoremediation was used to denote the process of plants absorb, take, change and release contaminants from one medium to another. The purpose of this study was to determine the reduction of salinity on the mangrove plant Rhizophora mucronata (Rm) and Avicennia marina (Am) with the addition of Vibrio alginolyticus (Va) bacteria in the bio-desalination process using a reed bed system. This study combines plants and bacteria for artificial saline desalination processes. The compounds contained in plants are absorbed in the form of cations or anions, while the addition of the bacteria was carried out to support the process of salt absorption in plants. The results of this study indicated a percentage of salinity decreasing up to the last day of experiment. The results showed the percentage of salinity removal at the last day reaching 49.16%, and 40.58% in reed bed reactor with Avecennia marina and Vibrio alginolyticus of 15‰ and 25‰, respectively. Meanwhile, the percentage of salinity using Rhizophora mucronata showed 64.68% and 40.18% in in reed bed reactor with Rhizophora mucronata and Vibrio alginolyticus of 15‰ and 25‰, respectively. The removal of salinity also occured in the control reactor, containing only reed bed system without plant, reaching 57.36% and 58.41% in initial salinity of 15‰ and 25‰. All treatment reactors exhibited high salinity removal. It showed that the all concentrations of salinity were below 4‰ at Day 2 of reactor operation. It suggested that the process of desalination occurred in the entire reactor treatment. In conclusion, the reed bed system reactor can be used to treat saline water but the process of absorption of salts with mangrove plant and addition of Vibrio alginolyticus can be more stable.
Źródło:: Journal of Ecological Engineering; 2019, 20, 4; 84-93
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Preliminary Phytotoxicity Test on Salinity Against Mangrove Plants of Rhizophora mucronata
Autorzy:: Titah, Harmin Sulistiyaning
Purwanti, Ipung Fitri
Pratikno, Herman
Chimayati, Rachmi Layina
Handayanu, -
Powiązania:: https://bibliotekanauki.pl/articles/952465.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: bio-desalination
brackish water
mangrove
salinity
preliminary phytotoxicity
Opis:: The phytotechnology concept that is applied for a bio-desalination reactor become a new desalination technology. The desalination technology can be called as bio-desalination technology to remove ions of Na+ and Cl- in brackish or saline water using mangrove plant. Before the mangrove plants were used in bio-desalination technology, the preliminary phytotoxicity test was conducted. The purpose was to determine the salinity concentration at which the mangrove species of Rhizophora mucronata can survive. The preliminary phytotoxicty test was carried out using a plastic reactor that was designed as a reed bed system. The reactors filled with gravel, sand, and artificial saline water. The variation of the NaCl concentrations were 0 mg/L as control, 10,000; 20,000; 30,000; 40,000, and 50,000 mg/L. The physical observation of the survival condition of Rhizophora mucronata was carried out during the preliminary test for 7 days. The analysis of Scanning Electron Microscopy (SEM) on Rhizophora mucronata was conducted at the end of exposure. The results showed that Rhizophora mucronata could not survive at the concentrations of 40,000 and 50,000 mg/L. Rhizophora mucronata changed the color of the leaves to brown and the stems become softer. Multiple cell damage and the decreasing trend of sodium and chloride amounts occured on roots and stems at the salinity concentration of 50,000 mg/L. In conclusion, the high of salinity concentration (> 30,000 mg/L) can be toxic to Rhizophora mucronata.
Źródło:: Journal of Ecological Engineering; 2019, 20, 3; 126-134
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Productivity Enhancement of a Double Slope Solar Still Coupled with a Solar System
Autorzy:: Al-Qadami, Ebrahim Hamid Hussein
Abdurrasheed, Abdurrasheed S.
Mustaffa, Zahiraniza
Amran, Y.H. Mugahed
Yusof, Khamaruzaman W.
Ahsan, Amimul
Powiązania:: https://bibliotekanauki.pl/articles/123539.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: active solar still
solar still productivity
desalination
solar system
passive solar still
Opis:: Water shortage is rising to become a global challenge due to the variations in climate change and population increment. Converting the seawater to potable water using the desalination technology is among the existing options highlighted by researchers. However, these processes are expensive and require much energy to operate. The solar desalination technology was reported as highly adequate since it utilizes the natural sunlight and the simple concepts of evaporation and condensation to produce the drinking water. The main challenge to date is the low productivity of the technology, which must be adequately improved in order to enhance productivity and optimize performance. In this study, the productivity and efficiency of conventional double slope solar still were assessed using a solar system. Two solar still models (active and passive) were fabricated with the same evaporation and condensation areas. The troughs were made of stainless steel with dimensions of 50×32 ×5 cm. In turn, while the cover was made of glass with dimensions of 48×60×0.3 cm and the inclination angle was 60°. In addition, the solar system consisted of two solar panels with 50 W capacity each, one battery of 100 Ah – 12 V, a charging controller of 30 A, and a single immersed DC water heater of 50 W – 12 V capacity. Both models were tested simultaneously for two sunny days, 24 hours each. The results showed that the water productivity of the active solar still was 55% higher than that of the passive solar still. On 15^th July, the total amounts of solar still productivity were 7.85 L/m²/d and 19.3 L/m²/d for active and passive stills, respectively. This is due to the existence of the heating element in the active still which allowed it to produce water for 24 hours continuously. Moreover, the trough temperature was found to be the highest for both models, because it was made from steel. Finally, the produced water in both cases was found to be directly proportional to such parameters as solar radiation intensity and ambient temperature.
Źródło:: Journal of Ecological Engineering; 2020, 21, 4; 255-263
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Application of membrane techniques in the removal of inorganic impurities from water environment- state of art
Zastosowanie technik membranowych w usuwaniu zanieczyszczeń nieorganicznych ze środowiska wodnego - stan wiedzy
Autorzy:: Bodzek, M.
Konieczny, K.
Powiązania:: https://bibliotekanauki.pl/articles/401228.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: procesy membranowe
usuwanie związków nieorganicznych
odsalanie i zmiękczanie wody
usuwanie anionów i metali
membrane processes
removal of inorganic
compounds
water desalination and softening
Opis:: Introduction and development of membrane technology in the production of drinking water, in the last 30 years, is considered as a significant step in the field of water treatment effectiveness, comparable with the introduction of sand filters at the beginning of 20 age. The special role played the high- and low- pressure-driven membrane processes as well as electrodialysis. Desalination of seawater and brackish groundwater is often the way to obtaining drinking water. Significant improvements in technology and design of reverse osmosis, the availability of alternative energy sources, the possibility of pretreatment and applied materials have caused the process to become environmentally-friendly source of fresh water in many regions of the world, particularly in those where their sources are limited. In the 1980s increased interest of nan filtration and to some extent the reverse osmosis as the methods of water softening, while in the 1990s. they start to be applied to remove micro-pollutants, also inorganic. To remove nitrate ions and fluoride, boron and metals (Fe, Mn and heavy metals) is successfully applied reverse osmosis, nan filtration and electro dialysis, as well as bioreactors and ultrafiltration integrated with coagulation and oxidation.
Wprowadzenie i rozwój technik membranowych w produkcji wody do picia, w ostatnich 30. latach, jest uważane jako znaczący krok w dziedzinie skuteczności uzdatniania wody, porównywalny z wprowadzeniem filtrów piaskowych na początku 20. wieku. Szczególną rolę odegrały w tym zakresie wysoko- jak i niskociśnieniowe procesy membranowe oraz elektrodializa. Odsalanie wody morskiej i zasolonych wód podziemnych jest częstym sposobem otrzymywania wody do picia. Znaczne ulepszenia w technologii i projektowaniu procesu odwróconej osmozy, dostępność alternatywnych źródeł energii, możliwości wstępnego oczyszczania oraz stosowanych materiałów spowodowały, że proces stał się przyjaznym ekologicznie źródłem wody słodkiej w wielu regionach świata, szczególnie w tych, gdzie ich źródła są ograniczone. W latach 80. wzrosło zainteresowanie nanofiltracją i w pewnym zakresie odwróconą osmozą jako metodami zmiękczania wody, natomiast w latach 90. zaczęto je stosować do usuwania mikrozanieczyszczeń, w tym nieorganicznych. Do usuwania jonów azotanowych i fluorkowych, boru oraz metali (Fe, Mn i metale ciężkie) z powodzeniem stosuje się odwróconą osmozę, nanofiltrację i elektrodializę, jak również bioreaktory membranowe oraz ultrafiltrację wspomaganą koagulacją i utlenieniem.
Źródło:: Inżynieria Ekologiczna; 2011, 26; 18-36
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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