Application of treated wastewater for cultivation of carnations

2013 ◽  
Vol 8 (3-4) ◽  
pp. 457-460 ◽  
Author(s):  
I. Petousi ◽  
N. Stavroulaki ◽  
M. Fountoulakis ◽  
M. Papadimitriou ◽  
E.I. Stentiford ◽  
...  
Keyword(s):  
Plant Growth ◽  
Domestic Wastewater ◽  
The Other ◽  
Treated Wastewater ◽  
Potted Plants ◽  
Quality Water ◽  
Water Scarce ◽  
Micro Elements ◽  
Positive Effect

The reuse of domestic wastewater for irrigation of floriculture crops is a very promising option in water-scarce areas. On the other hand, there are concerns about the effect of that kind low-quality water on plant growth. The present work examined the effect of irrigation with several type of treated domestic wastewater on production of carnations. Potted plants were irrigated with primary treated, secondary treated and tertiary treated wastewater as well as with water and water with fertilizer. The results shown that carnations can be irrigated with treated wastewater as the growth and quality of plant is equal or better compared with water. Furthermore, it was found that nutrients and micro-elements contained in treated wastewater had as a result positive effect on characteristics of carnations.

Analysis of User Involvement and Participation on the Quality of IS Planning Projects

2011 ◽  
pp. 292-309
Author(s):  
Varadharajan Sridhar ◽  
Dhruv Nath ◽  
Amit Malik
Keyword(s):  
User Involvement ◽  
User Participation ◽  
Project Team ◽  
The Other ◽  
Experiment Study ◽  
Systems Planning ◽  
Information Systems Planning ◽  
Positive Effect ◽  
Quasi Experiment Study

The process of information systems planning is critically dependent on the users of the system. The involvement and participation of these users and its impact on the effectiveness of IS planning has not been studied in the literature. In this article we address the effect of user involvement and participation on the quality of IS planning projects. This was done through an exploratory quasi-experiment study conducted in an academic setting. We studied the effects of user involvement using two sets of teams doing IS planning exercises, one in which the user was involved as part of the project team and the other where the user was outside the project team, but was involved in interviews and reviews of project artifacts. We also measured the extent of user participation through a survey of participants engaged in the IS planning projects. Results indicate that user involvement has significant positive effect on user participation, as well as on the quality of IS planning projects. However the effect of user participation on the quality of projects is mixed and needs further research.

scholarly journals Pengaruh Jarak Tanam dan Pemangkasan terhadap Kualitas Silase Dua Varietas Jagung (Zea mays L.)

2009 ◽  
Vol 9 (1) ◽  
pp. 17-25
Author(s):  
La Karimuna ◽  
Safitri Safitri ◽  
La Ode Sabaruddin
Keyword(s):  
Zea Mays ◽  
Plant Growth ◽  
Zea Mays L ◽  
Local Variety ◽  
Significant Difference ◽  
Main Plot ◽  
Effect Of Treatment ◽  
Positive Effect ◽  
Plot Design

Effects of crop arrangement and cutting on the silages quality of two varieties of maize (Zea mays L.)ABSTRACT. The objective of this experiment was to study the interaction effect of varieties, spacing and cutting on the quality of silage as foodstuff. The experiment had been conducted from January to April, 2007 at the experimental Garden of Faculty of Agriculture, University of Haluoleo. This experiment was arranged in Split-Split plot design with three factors. The first factor was variety as main plot, consisting of BISI-2 variety and local variety; the second factor was space arrangement as sub plot, consisting of 60 cm x 40 cm (J1), 75 cm x 40 cm (J2), 90 cm x 40 cm (J3), the third factor was cutting period as sub plot, consisting of no cutting (Po), cutting on 40 days (P1), and cutting on 55 days (P2). So that there were 2 x 3 x 3 x 3 = 54 experimental units. Analysis of variance was applied to know the effect of treatment. If so, least significant difference (LSD) 0.05 (95 %) confidence level was used. Variables observed was plant growth determining silages quality, consisting of quality of crude protein, crude fiber, crude fat, and water. Results of research revealed that interaction affect of spacing and cutting periods on 40 days of BISI-2 variety gave the best yield of plant growth for plant height. While the local variety tended to adverse effect of cutting. However, the quality of silages of two varieties tended to be similar. Every crop spacing had a positive effect of cutting on 40 days. The best quality of silages of two varieties was resulted from the interaction between spacing 75 cm x 40 cm and cutting of 40 days.

scholarly journals Quality of bio-solids produced in a Spanish Wastewater Treatment Plant (Córdoba-Spain) and its use in agronomy along 2000-2019

2020 ◽  
Vol 1 (4) ◽  
pp. 9-15
Author(s):  
Rafael Marín Galvín
Keyword(s):  
Escherichia Coli ◽  
Organic Matter ◽  
Wastewater Treatment ◽  
Treatment Plant ◽  
The Other ◽  
Treated Wastewater ◽  
Urban Wastewater ◽  
Main Metal ◽  
Colony Forming Units

Bio-solids are the final fate of pollution present in urban wastewater, reaching the production of these ones in Spanish WWTPs 701,751 T/year (dates of 2018). Considering that 85% of Spanish bio-solids are used in agronomy, it is important to know characteristics of biosolids there produced, and in this way, we have investigated bio-solids generated in La Golondrina´s WWTP (Córdoba, Spain) along 2000-2019. This WWTP is a conventional facility operated by activated sludges (26.55x106 m3/year treated) which has produced 1.43 kg of bio-solids per m3 of treated wastewater (38.000 T/year). Our results indicated that bio-solids had a dryness over initial mass of 22.3%, and 74.9% of organic matter over dried matter (o.d.m.). At the same time, major components detected in bio-solids were N, P and Ca which levels were 5.0%, 3.5% and 3.7%, respectively. On the other hand, concentration of total metals in bio-solids ranged 13,024 mg/kg o.d.m., being the main metal Fe (11.749 mg/kg o.d.m.) followed by Zn, Cu and Mn, with levels as mg/kg o.d.m. of 463.1, 392.8 and 265.7, respectively. Evolution per year of all the investigated parameters are shown in the paper. Taking into account the use of bio-solids in agronomy, we have evaluated levels of metals limited by the Spanish normative to this respect: thus, the seven metals restricted (Cd, Cu, Ni, Pb, Zn, Hg and Cr) exhibited concentration in bio-solids very lower than parametric values established. Moreover, we have estimated the ratios of accumulation of organics and metals from wastewater to bio-solids: thus, organic matter, N and P, were accumulated in bio-solids respectively, 342, 356 and 643 times, and total metals, 2,632 times. Finally, levels of Escherichia coli slightly varied from wastewater to bio-solids: 1.5x108 colony-forming units/L in the first one, and 0.9x108/g (o.d.m.) in the second ones.

scholarly journals AN EFFICIENT APPROACH TO MANAGE DOMESTIC WASTEWATER IN SMART CITY

2020 ◽  
Vol XLIV-4/W3-2020 ◽  
pp. 391-398
Author(s):  
A. Taouraout ◽  
A. Chahlaoui ◽  
D. Belghyti ◽  
I. Taha ◽  
M. Lachhab
Keyword(s):  
Smart City ◽  
Domestic Wastewater ◽  
Treated Wastewater ◽  
Acceptable Solution ◽  
Organic Matters ◽  
Human Waste ◽  
Ecological Sanitation ◽  
Limit Value ◽  
Domestic Wastewater Treatment

Abstract. The adoption of an ecological sanitation system, meeting the requirements hygienic and sanitary, constitutes a feasible and technically and economically acceptable solution in the future smart city. This new sanitation concept has the advantage of solving the problems of pathogens of human waste at source, thus offering the possibility of reusing them after treatment (recycling) in order to improve the standard of living of the population and protect the environment. The aim of this study is to evaluate the efficiency of a vertical Multi-Soil-Layering system (MSL) system to treat domestic wastewater under three hydraulic loading rates: 250 L/m2/day, 350 L/m2/day and 500 L/m2/day, in Moroccan conditions. To do this, a vertical MSL system measuring 20cm × 60cm × 78cm (L × W × H) was designed to treat domestic wastewater and his performance was investigated. The results showed high removal of organic matters and nutrients under the three hydraulic loads tested; the performance averages recorded are upper than 84 % for organic matters, 83.1 ± 7.2 % for ammonium and 72.4 ± 14.1 % for orthophosphate. The quality of the treated wastewater was evaluated according to Moroccan reject limit value. Consequently, this system could be considered an effective solution to be adopted for decentralized domestic wastewater treatment in Moroccan conditions.

scholarly journals AN ANAEROBIC-AEROBIC BIOLOGICAL TREATMENT OF WASTEWATER AT THE LOW-PRODUCTIVITY PLANT

2020 ◽  
pp. 122-131
Author(s):  
L.A. Fesik ◽  
◽  
N.V. Sorokina ◽  
E.А. Geraskina ◽  
T.S. Airapetian ◽  
...  
Keyword(s):  
Biological Treatment ◽  
Local Treatment ◽  
Experimental Studies ◽  
Treatment Plant ◽  
Domestic Wastewater ◽  
Treated Wastewater ◽  
Trophic Chain ◽  
Biological Purification ◽  
The Law

Abstract. The urgency of the problem of local biological treatment of domestic wastewater from housing in non-canalized areas with improving the quality of treated wastewater to the level of requirements for discharge into fishery bodies of water is considered. The analysis of the state of local wastewater treatment is given. Existing technological schemes and methods of local sewage, which are used for sewage treatment, are considered. The results of theoretical and experimental studies of a complex of a local anaerobic-aerobic biological treatment of domestic wastewater from housing in non-canalized areas at the low-productivity plants are presented. The results of theoretical and experimental researches of complex of local anaerobic-aerobic biological purification of domestic wastewater of habitation in non-canalized areas at the low-productivity plants are given. On the basis of the analysis of work and embodiment of low-productivity plants, used in home and foreign practice of local treatment of domestic wastewater the expediency of application flowing multistage anaerobic-aerobic biological purification of domestic wastewater with use of communities of attached and free-swimming microorganisms is shown. The proposed low-productivity plant, which includes a three-stage aerobic biological treatment of anaerobically treated wastewater is described. The use of ruff fillers for the retention of hydrobionts gives the opportunity to clear salvo discharge, rapid restoration of the activity of the ruff fillers (for example, in power outages). The ruff fillers make it possible to organize an appropriate trophic chain of hydrobionts, which dramatically reduces the amount of excess biomass and the removal of suspensions in treated wastewater. Using the experiments in laboratory conditions and at real industrial treatment plant of a new design there were received parameters of work of stages of anaerobic and aerobic biological purification, the law of nitrification and denitrification processes, the law of specific speed of oxidation of organic pollution in specific conditions of anaerobic-aerobic technology; the opportunity of reception of quality of treated wastewater at the level of the requirements of the specifications for dump of drains in fishing reservoirs is proved.

Laxogenosides Enhance Yield and Quality of Raphanus sativus L. Under Greenhouse Condition

2021 ◽  
Vol 15 (4) ◽  
pp. 542-547
Author(s):  
Jinna Liu ◽  
Zihe Zha ◽  
Xiaoli Liu ◽  
Cunli Zhang
Keyword(s):  
Plant Growth ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Raphanus Sativus ◽  
Water Soluble ◽  
The Other ◽  
Application Time ◽  
Greenhouse Experiments ◽  
Yield And Quality

Laxogenoside-C (LG-C) has BRs-likely activity and with higher activity stability. In this study, the LG-C and SsS (the mixture of Laxogenoside-A, -B, and -C; isolated from the Smilax scobinicaulis C.H. Wright) were used to conduct the seeding treatment and greenhouse experiments with different application time and concentrations, to clarify the effect on yield and quality of radish (Raphanus sativus L.) for development of a new plant growth regulator. The results showed that 10 μM LG-C and SsS increased hypocotyls, elongation and cotyledon weight compared with other treatment. The greenhouse experiments indicated that the interaction effect of plant growth regulator types and application time was significant for all parameters except for phosphorus content. An application of LG-C or SsS produced a higher yield than multiple times. Compared with T0 treatment, LG-C and SsS sprayed at root enlargement (T4) increased yield by 25.33% and 24.10%, respectively. T4 treatment of LG-C produced the highest yield and free amino acid and phosphorus, but the other parameters not. T4 treatment of SsS not only had the highest yield and water-soluble carbohydrates and water-soluble protein but also improved the other radish quality. In conclusion, this study indicated that the application of SsS at root enlargement with 10 μM improved radish root tubers yield and quality.

scholarly journals Bridging Pragmatic Gap in Translation Process through Developing Pragmatic Awareness

2016 ◽  
Vol 4 (1) ◽  
pp. 98
Author(s):  
Vahid Rafieyan
Keyword(s):  
Undergraduate Students ◽  
The Other ◽  
Target Language ◽  
Source Text ◽  
Translation Process ◽  
Source Language ◽  
Translation Quality ◽  
Pragmatic Awareness ◽  
Positive Effect

<p>In order for the translator to be able to translate the source text into the target language in a relevant way, the strata of the translated text through which relevance can be obtained (pragmatic, pragmatic-semantic, and semantic strata) should be equalized to that of the source text (Li &amp; Luo, 2004). The translator can achieve this by raising his/her awareness of the source and target language pragmatic perspectives. To investigate the actual effect of developing knowledge of pragmatic perspectives of the source language and the target language on the quality of translation of culture-bound texts, the current study was conducted on 64 Iranian undergraduate students of English translation. The study consisted of three phases: 1) administering a culture-bound text to be translated by all participants, 2) dividing participants into two groups: one merely receiving translation exercises while the other receiving metapragmatic discussions of the pragmatic perspectives of the source language along with translation exercises, and 3) assessing the translation quality of both groups immediately and two months following the treatment. The study revealed the significant positive effect of pragmatic instruction on improving the quality of translation of culture-bound texts and maintaining the obtained knowledge. The pedagogical implications of the findings suggested incorporating the pragmalinguistic and sociopragmatic perspectives of the source language and their distinctions with the pragmalinguistic and sociopragmatic perspectives of the target language into translation classes as an integral part of translation classes.</p>

scholarly journals PHOTOSYNTHETIC RESPONSE TO NITROGEN FERTILIZATION IN SUGARCANE UNDER RAINFED AND HIGH-TEMPERATURE CONDITIONS

2020 ◽  
Vol 33 (4) ◽  
pp. 1140-1149
Author(s):  
SERGIO CASTRO-NAVA ◽  
MARCOS ROLANDO HERRERA-SEPÚLVEDA ◽  
JOSE MANUEL GARCÍA-GIRÓN
Keyword(s):  
High Temperature ◽  
Plant Growth ◽  
Growth And Development ◽  
Field Experiments ◽  
Juice Quality ◽  
Ratoon Crop ◽  
Rainfed Condition ◽  
The Subject ◽  
Positive Effect

ABSTRACT Nitrogen is the most important element required for plant growth and development and is the primary nutrient limiting sugarcane production. Field experiments under rainfed condition and some periods with high temperature (above 35 °C) were carried out during 2014-2015 at the municipality of Ocampo, Tamaulipas, Mexico. The objective of the study was to determine the effect of varying doses of nitrogen fertilizer on leaf photosynthesis, plant growth, total chlorophyll, and juice quality of sugarcane commercial variety Mex 79-431 in the second ratoon crop. Six nitrogen doses (0, 60, 90, 120, 150, and 180 kg N ha-1) were tested and applied as urea 60 days after harvest, at the beginning of the rainy season. The results of the experiment indicated that the application of nitrogen in ratoon crop had a positive effect on growth and development. It is important to note that further studies are required on the subject, including timing of nitrogen application, application method, soil types, other doses, and other genotypes in the region. The maximum photosynthetic rate (27.68 pmol CO2 m-2 s-1) was attained at PAR 1500 pmol m-2 s-1 with 90 kg N ha-1. The highest yield was recorded in ratoon crop with a dose of 120 kg N ha-1. At harvest, the juice quality did not show significant variations among the treatments imposed.

scholarly journals Domestic wastewater treatment with household-scale constructed wetland system using water fern plant (Azolla pinnata)

2021 ◽  
Vol 894 (1) ◽  
pp. 012032
Author(s):  
A Magfhira ◽  
P Kinasih ◽  
D Salsabila ◽  
E Marchella ◽  
M F Fachrul
Keyword(s):  
Wastewater Treatment ◽  
Plant Growth ◽  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Aquatic Environment ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Azolla Pinnata ◽  
Domestic Wastewater Treatment

Abstract The purpose of writing this scientific paper is to analyze more deeply the management of the quality of the aquatic environment, especially regarding the treatment of domestic wastewater on a household scale. Domestic wastewater treatment with a constructed land system using Air Fern (Azolla pinnata) is expected to reduce concentration parameters such as BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), and Ammonia. The growth rate of Air Fern (Azolla pinnata) after acclimatization is quite good so that it can reduce BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand) and Ammonia, which are a source of nutrients for plant growth so that it can be used as a promising material for plant growth. It can be used as a promising material for plant growth domestic wastewater treatment. The analysis was carried out using the blended concept, a combination of virtual, online, and laboratory/field activities (offline/outside the network) while still paying attention to health protocols. The priority of this literature study research is to provide input for the government in the form of alternative solutions for managing the quality of the aquatic environment, especially regarding domestic wastewater treatment on a household scale. In addition, this research also supports the international Sustainable Development Goals (SDGs) program: Goal 6: Access to Clean Water and Sanitation” in point 3, namely “Improving water quality by reducing pollution, eliminating waste disposal, and minimizing the disposal of chemicals and hazardous materials, halving the proportion of untreated wastewater and substantially increasing recycling and safe reuse globally”. This research can contribute to appropriate technology in environmental biotechnology, namely wastewater treatment with a system that has simple technology, low cost, energy-saving and is environmentally friendly, which can create a level of hygiene and comfort for the community and maintain environmental sustainability future.

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