Search results for "SOLIDS"

showing 10 items of 159 documents

Berry characterisation of cv shiraz according to position on the rachis

2016

In this study, characterisation of the physical and compositional parameters of berries located in different positions on the rachis of Shiraz/R99 bunches was done. Berries were divided according to position on the rachis (apical, median and basal) and berry weight, resulting in four berry weight classes, averaging 0.86 g, 1.29 g, 1.74 g and 2.26 g and 0.74, 1.18, 1.59 and 2.09 cm3, respectively. The berries were analysed individually. The fresh weight of the berries comprised approximately 4% seeds, 20% skin and 76% flesh. Different percentage distributions were found for each class of berry weight and according to position on the rachis. From the top to the bottom rachis position, an incr…

0106 biological sciencesWineShiraz berry variability berry position berry weight berry compositionFleshFresh weightfood and beverages04 agricultural and veterinary sciencesBerry01 natural sciences040501 horticultureSettore AGR/03 - Arboricoltura Generale E Coltivazioni ArboreeHorticultureSoluble solidsBotanyComposition (visual arts)0405 other agricultural sciencesRachis010606 plant biology & botanyField conditionsMathematics

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The effects of different combinations of fixed and moving bed bioreactors on rainbow trout (Oncorhynchus mykiss) growth and health, water quality and…

2019

Abstract The effect of bioreactor design on nitrification efficiency has been well studied, but less is known about the overall impacts on water quality. Besides nitrification, submerged fixed bed bioreactors (FBBR) trap fine solid particles, whereas moving bed bioreactors (MBBR) grind solids, possibly increasing solids and particle accumulation in the system. In this experiment, the effects of different combinations of fixed bed and moving bed bioreactors on water quality, solids removal, particle size distribution, fish health based on histopathological changes and nitrification efficiency were studied in laboratory scale recirculating aquaculture systems (RAS) with rainbow trout (Oncorhy…

0106 biological sciencesbiofiltrationwater quality monitoringnitrifikaatioAquatic Science01 natural scienceslaw.inventionchemistry.chemical_compoundlawBioreactorparticle size distributionNitritevesiviljely (kalatalous)Filtrationta218ta415010604 marine biology & hydrobiologyta1183technology industry and agriculture04 agricultural and veterinary sciencesPulp and paper industryTotal dissolved solidsvedenlaatuFilter (aquarium)taudinaiheuttajatchemistrybioreaktoritBiofilter040102 fisherieshistopathology0401 agriculture forestry and fisheriesNitrificationWater qualitysuodatusAquacultural Engineering

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A method for reclaiming nutrients from aquacultural waste for use in soilless growth systems

2020

Abstract The aim of this work was to develop a method that allows the recovery of nutrients from aquaculture sludge, not only to alleviate the disposal problem, but also to address the future scarcity of non-renewable fertilizers. This method includes two steps: Nutrient mobilization using aerobic digestion followed by solids precipitation using chitosan as the flocculant. The aerobic digestion experiments were conducted in aerated batch reactors, while a jar test apparatus was used to assess the capacity of chitosan to remove total suspended solids (TSS) and turbidity. During aerobic digestion, the concentration of soluble N (sum of NH4-N, NO2-N, NO3-N) increased from 181 mg/L at the start…

021110 strategic defence & security studiesFlocculationEnvironmental EngineeringSewage0211 other engineering and technologiesFlocculationAquacultureNutrients02 engineering and technology010501 environmental sciencesWaste Disposal Fluid01 natural sciencesChitosanchemistry.chemical_compoundNutrientchemistryAerobic digestionFood scienceTurbidityAeration0105 earth and related environmental sciencesWater Science and TechnologyTotal suspended solidsWaste disposalWater Science and Technology

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Occurrence of enteric viruses in reclaimed and surface irrigation water: relationship with microbiological and physicochemical indicators.

2016

Aims To assess the prevalence of enteric viruses in different irrigation water sources and in the irrigated produce, and the possible links with microbiological and physicochemical water characteristics. Methods and results The prevalence and levels of Escherichia coli, Norovirus (NoV) genogroup I (GI) and II (GII), as well as Hepatitis A virus were assessed in three types of water: surface water (surface-W), reclaimed water subjected to secondary treatment (secondary-W) and reclaimed water subjected to tertiary treatment (tertiary-W), as well as in zucchini irrigated with these irrigation water sources. Chemical oxygen demand (COD), turbidity, total suspended solids, alkalinity, and maximu…

0301 basic medicineIrrigationVeterinary medicineAgricultural Irrigation030106 microbiology010501 environmental sciencesBiology01 natural sciencesApplied Microbiology and BiotechnologyMicrobiology03 medical and health sciencesVegetablesEscherichia coliHumansTurbiditySurface irrigation0105 earth and related environmental sciencesTotal suspended solidsEnterovirusBiological Oxygen Demand AnalysisChemical oxygen demandWater PollutionWaterGeneral MedicineReclaimed waterWastewaterWater MicrobiologySurface waterBiotechnologyJournal of applied microbiology

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Thermomineral waters of Greece: geochemical characterization

2020

75 °C). In terms of pH most results vary from 5.5 to 823 °C) ii) warm (23 40 °C) iii) thermal (40 75 °C) and iv) hyperthermal (&gtfew springs show either very low pH (&lt10) proposing serpentinization processes. Regarding TDS concentrations collected waters can be subdivided into low salinity (up to 1.5 g/L) brackish (up to 20 g/L) and saline (up to 43 g/L). The medium high salinities can be justified by mixing with sea water and/or strong waterrock interaction processes. Isotope composition of O and H ranges from 12.7 to +2.7 ‰ SMOW and from 91 to +12 ‰ SMOW respectively and is generally comprised between the Global Meteoric Water Line and the East Mediterranean Meteoric Water Line. Only few water samples show a positive shift for δ18O possibly related to high temperature waterrock interaction processes. Carbon dioxide (18 997000 μmol/mol) or N2 (1100 989000 μmol/mol) or CH4 (&ltMany geothermal areas of Greece are located in regions affected by Miocene or Quaternary volcanism and in continental basins characterised by elevated heat flow. Moreover the majority of them is found along the coast as well as in islands of the Aegean Sea and thus thermal water is often brackish to saline due to marine intrusion into costal aquifer. In the present study almost 300 thermal and cold mineral water samples were collected along the Hellenic territory with their physicochemical parameters (temperature pH electrical conductivity and Eh) and the amount of bicarbonates (titration with 0.1N HCl) being determined in situ. Additionally gases found either in free or dissolved phase were sampled. Both water and gas samples were analysed at the INGVPa laboratories for major ions (Ion Chromatography) silica (Inductively Coupled Plasma Optical Emission Spectrometry) chemical composition of free and dissolved gases (Gas Chromatography) water isotopes (O and H) and carbon and helium isotopes of free and dissolved gases (Mass Spectrometry). The temperature of the investigated waters ranges from 6.5 to 98°C pH from 1.96 to 11.98 whilst Total Dissolved Solids (TDS) from 0.06 to 43 g/L. Based on the temperature parameter waters can be divided into four groups: i) cold (&lt0.5 913000 μmol/mol) are the prevailing gas species found in the studied sites. The δ13CCO2 values ranged from 20.1 to +8.5 ‰ whilst the isotope ratio of He from 0.21 to 6.71 R/RA.4) suggesting interaction with H2Srich gases or very high pH values (&gtSettore GEO/08 - Geochimica E Vulcanologia

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Preparation and Promotion of Fruit Growth in Kiwifruit of Fluorinated N-Phenyl-N‘-1,2,3-thiadiazol-5-yl Ureas

2004

Seventeen phenyl-fluorinated analogues of thidiazuron [N-phenyl-N'-(1,2,3-thiadiazol-5-yl)urea, TDZ] have been prepared and characterized. The effects of each fluorinated urea on growth and quality of kiwifruits (Actinidia deliciosa) were evaluated by comparison with untreated (control) and TDZ-treated fruits. The results obtained showed a clear dependence of the growth-promoting activity of these fluorinated ureas on the pattern and degree of fluorine substitution in the phenyl ring. The most effective for promoting fruit growth was N-(2,3,5,6-tetrafluorophenyl)-N'-(1',2',3'-thiadiazol-5'-yl)urea at 25 ppm (at harvest, treated fruits were 58% heavier than untreated ones) followed by N-(3,5…

Actinidia deliciosaGrowth promotingbiologyChemistryPhenylurea CompoundsActinidiaFluorine CompoundsQuantitative Structure-Activity RelationshipTitratable acidGeneral Chemistrybiology.organism_classificationchemistry.chemical_compoundSoluble solidsFruitThidiazuronThiadiazolesBotanyUreaDry matterGeneral Agricultural and Biological SciencesNuclear chemistryJournal of Agricultural and Food Chemistry

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Regular consumption of fresh orange juice increases human skin carotenoid content

2015

Dermal carotenoids are a good indicator of antioxidant status in the body. This study aimed to determine whether regular consumption of orange juice could increase dermal carotenoids. Two types of orange juice, obtained from regularly (CI) and partially (PRD) irrigated trees, were tested to reveal any possible association between juice and dermal carotenoids. Soluble solids, titratable acidity, and total carotenoids were quantified in the juice; skin carotenoid score (SCS) was assessed by Raman spectroscopy. Carotenoid content was 7.3% higher in PRD than in CI juice, inducing no difference in SCS. In a first trial with daily juice intakes for 25 days, SCS increased linearly (10%) in the ind…

AdultMaleAntioxidantmedicine.medical_treatmentHuman skinTitratable acidPersistence (computer science)BeveragesYoung AdultSoluble solidsmedicineHumansFood scienceCarotenoidIrrigationAgedSkinchemistry.chemical_classificationOrange juicetotal carotenoidsintegumentary systemfood and beveragesMiddle AgedCarotenoidstitratable aciditysoluble solidchemistryRaman spectroscopyFemaleCitrus × sinensisFood ScienceCitrus sinensis

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Effect of biomass features on oxygen transfer in conventional activated sludge and membrane bioreactor systems

2019

Abstract The aim of the present study was to compare the oxygen transfer efficiency in a conventional activated sludge and a membrane bioreactor system. The oxygen transfer was evaluated by means of the oxygen transfer coefficient and α-factor calculation, under different total suspended solids concentration, extracellular polymeric substances, sludge apparent viscosity and size of the flocs. The oxygen transfer coefficient and α-factor showed an exponential decreasing trend with total suspended solid, with a stronger oxygen transfer coefficient dependence in the conventional activated sludge compared to the membrane bioreactor. It was noted that the oxygen transfer coefficient in the conve…

Aeration efficiency activated sludge properties EPS Membrane Bioreactor Oxygen transferSuspended solidsMembrane reactorSettore ICAR/03 - Ingegneria Sanitaria-AmbientaleRenewable Energy Sustainability and the EnvironmentChemistry020209 energyStrategy and Management05 social scienceschemistry.chemical_element02 engineering and technologyApparent viscosityMembrane bioreactorNitrogenIndustrial and Manufacturing EngineeringEnergy consumptionActivated sludgeExtracellular polymeric substanceChemical engineering050501 criminology0202 electrical engineering electronic engineering information engineering0505 lawGeneral Environmental ScienceTotal suspended solids

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Cassava starch processing at small scale in North Vietnam

2008

International audience; In Northern Vietnam, small-scale cassava starch processing is conducted in densely populated craft villages, where processors face difficulties to expand their activities. Three different processing systems were studied among a cluster of three communes in the Red River Delta, producing up to 430 t of starch (at 55% dry matter) per day. The first system, type A, is a cylindrical rasper and a manual sieve, the second, type B, is a cylindrical rasper and stirring-filtering machine and the third, type C, used equipment for both the rasping and filtering stages. Moisture, starch, crude fibers and ash content analysis were carried out on samples collected from the A-B-C m…

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Kondisi Fisika Kimia Air Sungai Yang Bermuara di Teluk Sawaibu Kabupaten Manokwari

2017

This research was conducted in three small rivers (Momo, Sahara and Konto), which empties into the Gulf Sawaibu Manokwari District. Water sampling for the third observation station made for the measurement of physical parameters such as temperature, TDS, TSS and turbidity, and chemical parameters pH, DO, COD, BOD, nitrate (NO3), phosphate (PO4) and Ammonia. The purpose of this study was to determine the physical quality of the river water chemistry research sites, and compared with water quality standards based on Government Regulation No. 82 of 2001 on water quality management and water pollution control. The results of measurements of physical and chemical parameters is the temperature ra…

Biochemical oxygen demandchemistry.chemical_compoundNitrateChemistryEnvironmental chemistryChemical oxygen demandWater qualityTurbidityWater pollutionTotal dissolved solidsTotal suspended solidsJURNAL SUMBERDAYA AKUATIK INDOPASIFIK

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