scholarly journals MODERN STATE, DYNAMICS OF CHANGES AND PROSPECTS FOR THE DEVELOPMENT OF HYDROTECHNICAL RECLAMATIONS IN DNIPROPETROVSK REGION

2019 ◽  
pp. 54-60 ◽  
Author(s):  
L. M. Rudakov ◽  
H. V. Hapich
Keyword(s):  
Water Resources ◽  
Irrigation Water ◽  
Left Bank ◽  
Chemical Parameters ◽  
Irrigation Systems ◽  
Physical And Chemical Parameters ◽  
The Right ◽  
Physical And Chemical ◽  
Quality Of Irrigation Water

Formulation of the problem. Irrigation is one of the priority areas of agricultural development for Ukraine. According to numerous studies, it has been determined that restoration of irrigated agriculture is a prerequisite for adapting the agricultural sector of the economy to climate change and ensuring Ukraine's food security. Dnipropetrovsk region was among the territories with the largest area of irrigated land. The vast majority of irrigation systems in the region were built in the 70-80's of the last century and operated for about 50 years, and the last reconstruction of the capital reconstruction was carried out more than 30 years ago. About 198.7 thousand hectares of irrigated land are recorded on the territory of the region, of which 163 thnd ha (82% of available capacity) are not used as irrigated. At the same time, operating systems on the area of 35,7 thnd ha (18% of available) are not working at full capacity. Under the condition of reconstruction of the internal irrigation network, it is promising to restore irrigation on an area of 80.4 thnd. ha. Research results. Irrigation of agricultural crops in the Dnipropetrovsk region occurs on the right and left bank of the Dnipro River in 18 administrative districts. An analysis of the dynamics of the change on the right-bank part indicates a trend of reduction of irrigated land by 1.3 times in 2014 as compared to the same indicator in 2004. The irrigated areas of the left-bank part of the Dnipropetrovsk region have a positive tendency to build up. The dynamics of the change in the period of 2004-2014 indicates that the irregular area is slightly but gradually increased 1.36 times.For the purpose of determining the quality of irrigation water and its suitability for irrigation by structural subdivisions subordinated to the regional office of water resources in the Dnipropetrovsk region, 130 samples were sampled at 56 stationary observation points for chemical analysis. Samples of water were selected near the main pumping stations and control basins, in the heads of main channels, from large and small rivers and ponds.The analysis of the results testifies to the threatening tendency of gradual deterioration of the quality of irrigation water. For example, in comparison with the figures for 2004 in relation to 2014, the area of irrigation with water of the 1st class decreased by 2.7 times from 16.85 thnd ha to 6.34 thnd ha. Almost stable trend has the irrigation area, which was watered with 2nd grade water, which increased by 1.35 times and, with the exception of the indicators in 2010, averaging about 12 thnd ha. The most threatening trend is the increase in areas of irrigated water that is not suitable for irrigation without the prior improvement of its physical and chemical parameters. Such territories have grown almost 3 times from 2,2 thnd ha to 6,1 thnd ha. Conclusions. The unsatisfactory technical condition of the conducting network of most canals and drainage systems, violation of irrigation regime and outdated irrigation technique, worsens the reclamation state of a significant part of the irrigated lands of the Dnipropetrovsk region. In this regard, it is necessary to introduce a system of detailed monitoring of land prone to secondary salinity, based on technologies of remote mapping WL-methods. In addition, it is necessary to widely apply methods of field simplified operational control of the technical state of the components of irrigation networks. It is necessary to perform repair and renovation works in a timely manner that will reduce unproductive water losses for filtration from irrigation systems and prevent soil salinization, as well as rational use of water resources. Due to the threatening trend, particular attention should be paid to the quality and quantity of irrigation water. In the absence of control by the authorities on volumes, concentrations and major sources of pollution of surface and groundwater, it is possible that irrigation systems in the future should include technological lines to improve the physical and chemical parameters of irrigation water. The economic feasibility of the issue requires further study.

Effects of the Degree of Maturity on the Chemical Composition, Physical Characteristics and Sensory Attributes of Peach (Prunus persica) cv. Caterin

2005 ◽  
Vol 11 (5) ◽  
pp. 345-352 ◽  
Author(s):  
A. I. Cascales ◽  
E. Costell ◽  
F. Romojaro
Keyword(s):  
Sensory Quality ◽  
Prunus Persica ◽  
Sensory Attributes ◽  
Soluble Solids ◽  
Chemical Parameters ◽  
Colour Intensity ◽  
Physical And Chemical Parameters ◽  
Degree Of Maturity ◽  
Physical And Chemical

Sensory quality of peach during ripening to assess the best state for consumption was analysed. Physical and chemical parameters commonly used for establishing the commercial quality of this fruit were also determined: Soluble solids, acidity, sugars, organic acids, chlorophyll, carotenoids, resistance to compression and to penetration and colour. Relationships among these parameters and sensory characteristics were also analysed. A panel of eight trained assessors evaluated intensities of 12 sensory attributes (1 for odour, 2 for colour, 4 for flavour and 5 for texture). The sensory attributes selected allowed the description of perceivable differences between peaches of different degrees of maturity, although the variation in intensity of the attributes followed different trends. Colour intensity increased and acidity, firmness and crispness decreased significantly with ripening. Intensity of flavour, sweetness and fruitiness increased significantly from the under-ripe to semi-ripe states, and then decreased on reaching ripeness. It can be concluded that the most suitable time for harvesting and consumption of this peach variety was the state described herein as semi-ripe, and that a high correlation existed between colour intensity and hardness and the instrumental measurements of colour and texture.

Commodity science and examination of meat products. Laboratory workshop

2018 ◽  
Author(s):  
Юлия Данильчук ◽  
YUliya Danilchuk
Keyword(s):  
Meat Products ◽  
Regulatory Framework ◽  
Laboratory Work ◽  
Educational Institutions ◽  
Chemical Parameters ◽  
Higher Educational Institutions ◽  
Regulatory Documents ◽  
Physical And Chemical Parameters ◽  
Physical And Chemical

In this workshop the work on the study of the classification, assortment and expertise of the quality of meat and meat products. Each Chapter provides an overview of the relevant types of products and a list of the main regulatory documents required for their examination. The latest changes in the regulatory framework have been taken into account. Laboratory work on the examination of products include tasks for the study of defects, acceptance rules and methods of sampling, marking analysis, evaluation of the quality of goods by organoleptic and physical and chemical parameters. For students of higher educational institutions studying in the direction of preparation 38.03.07 "commodity science".

scholarly journals The Diversity of Makrozoobenthos as Bio-Indicators of Water Quality of the River Kundur District Labuhanbatu

2021 ◽  
Vol 4 (1) ◽  
pp. 1027-1033
Author(s):  
Winarti Winarti ◽  
Arman Harahap
Keyword(s):  
Total Abundance ◽  
Chemical Parameters ◽  
Observation Station ◽  
Physical Chemical ◽  
Physico Chemical ◽  
Physical And Chemical Parameters ◽  
The Individual ◽  
Physical And Chemical ◽  
Chemical Water

Macrozoobenthos used as a bioindicator of the waters, this happens because of the nature of the benthos which has mpergerakan low so it got a lot of influence from the environment. This study aims to determine the condition of the river Kundur with a view the community structure of macrozoobenthos which include: species composition, abundance, diversity, uniformity and dominance as well as the physical and chemical parameters of water as a paremeter supporters. Based on the results of observations, macrozoobenthos were found during the study in the river Kundur consists of 3 phylum, 4 classes, 17 family with 11 species. The composition of the class of macrozoobenthos in the whole of the observation station consists of a Gastropod (37%), Insecta (23%), Malacostraca (20%), Polychaeta (10%) dan Malacostraca (20%). The value of an abundance ranged from 325,7 - 3309,6 ind/m3. With the value of the total abundance at Station I which is equal to 3690,1 ind/m3, Station II 3723,1 ind/m3, Station III 3692,3 ind/m3 can be categorized diversity are light polluted with the value of the index of uniformity (E) that describes the spread of the individual tends to be uniform or relatively the same. While the condition of the physical-chemical parameters and the substrate bottom of the river Kundur in general has a range of relatively homogeneous, spread evenly throughout the observation stations and still be able to support life macrozoobenthos. To the results of measurements of the parameters of physico-chemical water and substrate in the river kundur in general has a range of relatively homogeneous in the whole observation stations and still be able to support the life of the macrozoobenthos.

OPTIMIZATION OF INULIN CONTENT IN THE FORMULATION OF SOFT WAFERS ON BASED WHEAT FIBER

2020 ◽  
Author(s):  
Р.З. СХАШОК ◽  
Ю.Н. ФИЛИППЕНКО ◽  
Н.А. ТАРАСЕНКО
Keyword(s):  
Dietary Fiber ◽  
Quality Indicators ◽  
Control Sample ◽  
Chemical Parameters ◽  
Organoleptic Evaluation ◽  
Physical And Chemical Parameters ◽  
Quality Of Products ◽  
Physical And Chemical ◽  
Optimal Quality

Исследовано влияние инулина, внесенного в рецептуру мягких вафель взамен части сахара, на качество изделий. Раствор инулина Beneo (Orafti) GR вносили в тесто в количестве 3, 5 и 7% к массе муки. Контролем был образец мягких вафель без добавки инулина. Одновременно с инулином во все образцы вносили пшеничные пищевые волокна Камецель FW 200 в количестве 15% к массе муки. На основе исследования физико-химических показателей влажности и плотности тестовых заготовок, а после их выпечки – намокаемости и влажности готовых изделий установлено, что оптимальные показатели качества имел образец мягких вафель с 5-процентным содержанием инулина. По разработанной рецептуре изготовлены мягкие вафли с добавкой пшеничных волокон и установленным количеством инулина. Проведена органолептическая оценка изделий, определено содержание основных пищевых веществ. Установлено, что мягкие вафли, в рецептуру которых внесены пшеничные волокна Камецель FW 200 и инулин Beneo (Orafti) GR, дольше сохраняют свежесть, содержат на 15% меньше жира, на 6% больше белка и на 8% менее калорийны по сравнению с контрольным образцом. The effect of inulin added to the formulation of soft wafers instead of sugar on the quality of products was studied. Beneo (Orafti) GR inulin solution was added to the dough in an amount of 3, 5 and 7% by weight of flour. A sample of soft wafers without inulin supplementation was a control. Wheat dietary fiber Kametsel FW 200 in an amount of 15% by weight of flour was added simultaneously with inulin to all samples. On the basis on the study of physical and chemical parameters of humidity and density of test blanks, and after baking-wetness and humidity of finished products, it was found that a sample of soft wafers with 5% inulin content had optimal quality indicators. According to the developed recipe, soft wafers with the addition of wheat fibers and a set amount of inulin are made. Organoleptic evaluation of products was carried out, the content of the main food substances was determined. It was found that soft wafers with wheat fiber Kamenzel FW 200 and inulin Beneo (Orafti) GR added to the recipe retain freshness longer, contain 15% less fat, 6% more protein and 8% less calories compared to the control sample.

The structure and composition of macrozoobenthos community in varying water qualities in Kalibaru Waters, Bengkulu, Indonesia

2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Lilisti LILISTI ◽  
Zamdial ZAMDIAL ◽  
Dede Hartono ◽  
Bieng Brata ◽  
Marulak Simarmata
Keyword(s):  
Human Activities ◽  
Aquatic Ecosystem ◽  
Chemical Parameters ◽  
Aquatic Life ◽  
Physical And Chemical Parameters ◽  
Ecological Threshold ◽  
Medium Level ◽  
The Government ◽  
Physical And Chemical

Abstract. Lilisti, Zamdial, Hartono D, Brata B, Simarmata M. 2021. The structure and composition of macrozoobenthos community in varying water qualities in Kalibaru Waters, Bengkulu, Indonesia. Biodiversitas 22: 106-112. Various human activities affect the quality of the aquatic ecosystem that can be assessed by measuring the physical, chemical, and biological parameters of the waters and sediments. This is the case of Kalibaru Waters, Bengkulu, Indonesia which shows changes in the estuary and marine ecosystems due to the cut-off of the main river around the area for the development of roads and bridges. The objective of this study was to analyze the quality of the waters and substrate, and the structure of the macrozoobenthos community as a bioindicator at the Kalibaru Waters. A survey was carried out in four stations, which was purposively selected based on human activities around the waters. Data collected included the physical and chemical parameters, and the diversity and density of macrozoobenthos species. The density of macrozoobenthos species was analyzed for summed dominance ratio (SDR), diversity (H'), homogeneity (E), and dominance (D) indices. The results showed that the physical and chemical parameters of Kalibaru Waters were acceptable for aquatic life, however, the oil contents at two stations exceeded the ecological threshold. Analysis of the macrozoobenthos community as a bioindicator for water quality found that the diversity and homogeneity indices were at a medium level indicating an unstable community, while the dominant index remained low indicating that none of the species was dominant in the Kalibaru Waters. This information is needed as a reference for the government of Bengkulu Province to make appropriate policies and management decisions to maintain the quality of the aquatic ecosystem in Kalibaru Waters.

scholarly journals Assessment of the physico-chemical properties of Oguta Lake compared to the established values of the Federal Ministry of Environment, Nigeria

2019 ◽  
Vol 10 (2) ◽  
Author(s):  
Felix Atawal Andong ◽  
Ngozi Evelyn Ezenwaji ◽  
Temitope Dadewura Melefa ◽  
Funmilayo Faith Hinmikaiye ◽  
Obiechina Vitus Nnadi ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Temperature ◽  
Chemical Properties ◽  
Aquatic Organisms ◽  
Quality Standard ◽  
Freshwater Ecosystems ◽  
Chemical Parameters ◽  
Physical And Chemical Parameters ◽  
Phosphate Nitrate ◽  
Physical And Chemical

Constant assessment of physical and chemical parameters in freshwater ecosystems is largely recommended. This is even more important when water resources, e.g. lakes in most countries, serve as a source of water for domestic and commercial purposes, and /or when freshwater ecosystems represent a refuge for most aquatic organisms. In this paper, we investigated the physical and chemical properties of water resources at three sampling stations of Lake Oguta, comparing the weekly values (June-July 2018) with the water quality standard established by the Nigerian Federal Ministry of Water Resources (FMWR). The parameters analysed included water temperature, pH, dissolved oxygen (DO), chemical and biological oxygen demand (COD, BOD), potassium, magnesium, sodium, calcium, phosphate, nitrate, chloride and sulphate. Most of the cations (calcium, magnesium and sodium), anions (phosphate, nitrate, chloride and sulphate), as well as water temperature, BOD and DO were below the quality standard limits. The basic chemistry and temporal variations may have been caused mostly by natural factors such as geology, topography, meteorology, hydrology, water levels and biological activity. Being in line with the recommended standard levels, the nutrient concentrations, pH and hardness in the current study may indicate favourable conditions for the life of aquatic organisms and contemporary co-existence with the human exploitation for drinking purposes. Nevertheless, to assure a safely and conscious exploitation of this water resource, we recommend continuity in the monitoring studies. To assure an accurate evaluation of the physical and chemical parameters, future studies should include a larger sample size and extended study periods (including other seasons).

scholarly journals Evaluation of the Ecological Impact of Human Settlement on the Water Quality of Lower Cross River, Nigeria

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
B. J. Oribhabor ◽  
O. M. Udoidiong ◽  
D. F. Udoh ◽  
B. E. Akpan
Keyword(s):  
Water Quality ◽  
Ecological Impact ◽  
World Health ◽  
Human Settlement ◽  
Chemical Parameters ◽  
Cross River ◽  
Cross River State ◽  
Physical And Chemical Parameters ◽  
Physical And Chemical

The ecological impact of human settlement on the water quality of Lower Cross River, Nigeria was evaluated. The physical and chemical conditions of the river water were determined from January to August, 2011. Three stations comprising Itu in Akwa Ibom State with intense human activities (station 2), its upstream (without human settlement) at Cross River State (station 1) and the downstream (station 3) were sampled. The Parametric One Way Analysis of Variance (ANOVA) indicated that of the 17 physical and chemical parameters determined, only water level and COD were found to be significantly different () among stations. The spatial variations in the level of significant correlation of the physical and chemical parameters among the stations and the higher level of interrelationship in downstream station 2 and 3 than station 1 could be attributed to inputs resulting from human settlement. Comparison between some parameters with Standard Organization of Nigeria, and World Health Organization maximum permitted levels for drinking water indicated that the water was not polluted. However, the BOD and COD concentrations of greater than 2 mg/L and 20 mg/L respectively were indicative of pollution.

scholarly journals Kualitas dan distribusi spasial karakteristik fisika-kimia Sungai Siak di Kota Pekanbaru

DEPIK ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 335-343
Author(s):  
Luri Anita Vanri ◽  
Adriman Adriman ◽  
Muhammad Fauzi
Keyword(s):  
Water Quality ◽  
Fecal Coliform ◽  
Principal Component ◽  
Ex Situ ◽  
Chemical Parameters ◽  
Physical And Chemical Parameters ◽  
Physical And Chemical ◽  
Main Factor

Siak River is one of the biggest rivers and the deepest in Riau Province in Indonesia with its 20-30 depth and depth 370 kilometers. The Siak River used for bathing, washing, dumping industrial palm oil, plantation, domestic waste, and port so it has an impact on water quality changing. This study analyzed the water quality and distribution spatial physical and chemical parameters the river around in Pekanbaru city, using Principal Component Analysis (PCA), this study used laboratory in situ and ex situ water quality measurement instruments. Water sampling each station done three times in two weeks during October to November 2019. The results obtained from this study shows the water quality of these 6 stations in the category of bad and the water quality from headwaters to downstream river influenced by organic parameter as a dominant pollutant. The correlation of water quality characteristic was 74.4% main factor 1 (F1) 47.4% and main factor 2 (F2) 26.7% with main characteristics fecal coliform, phosphate, and nitrate. Grouping these characteristics through a dendrogram showed three levels of relationship based on the characteristic parameter. The first group stands for station 1,2, and 4 have higher brightness and Dissolved oxygen (DO) parameters than other stations. The second group stands for stations 3 and 5 that have relatively high in parameter phosphate and nitrate. The third group is station 6 (river estuary) which results in shows high of fecal coliform proportional to pollution. The study can be concluded that three groups heavily contaminated. Each group has different parameters that show influence upland and waters activities.Keywords: Distribution of spatial, The quality of water, Siak River, Physical and Chemical Parameters, PCA ABSTRAKSungai Siak merupakan salah satu sungai terbesar di Provinsi Riau dan terdalam di Indonesia, dengan kedalaman sekitar 20-30 meter dan panjang 300 kilometer. Sungai siak masih dimanfaatkan oleh masyarakat sebagai sarana Mandi Cuci Kakus (MCK), tempat buangan limbah industri kelapa sawit, perkebunan, rumah tangga dan pelabuhan, sehingga berdampak pada perubahan kualitas perairan. Penelitian dilakukan untuk menganalisa kualitas dan distribusi spasial karateristik fisik-kimia perairan Sungai Siak di sekitar Kota Pekanbaru, dengan menggunakan Principal Component Analysis (PCA). Kajian menggunakan instrument pengukuran kualitas air in situ dan ex situ di laboratorium. Pengambilan sampel air pada masing-masing stasiun dilakukan sebanyak tiga kali setiap dua minggu selama bulan Oktober hingga November 2019. Hasil yang diperoleh dari kajian ini adalah kualitas air di keenam stasiun masuk dalam katagori buruk dan mengalami penurunan kualitas dari hulu ke hilir yang disebabkan bahan organik. Korelasi karakteristik kualitas air sebesar 74,3%, faktor utama 1 (F1)  47,4% dan faktor utama 2 (F2) 26,7% dengan penciri utama fecal coliform, fosfat dan nitrat. Pengelompokan stasiun pada dendogram klarifikasi hierarki menunjukkan adanya tiga tingkat hubungan kekerabatan berdasarkan parameter pencirinya. Kelompok satu terdiri dari stasiun 1, 2 dan 4 memiliki hasil relatif tinggi pada parameter kecerahan dan oksigen terlarut (DO) dibandingkan dengan stasiun lainnya. Kelompok dua terdiri dari stasiun 3 dan 5 memiliki hasil relatif tinggi pada paramter nitrat dan fosfat dibandingkan dengan stasiun lainnya. Kelompok tiga adalah stasiun 6 (muara sungai sail) dengan parameter fecal coliform relatif tinggi yang berbanding lurus dengan tingkat pencemarannya. Berdasarkan hasil kajian dapat disimpulkan bahwa tiga kelompok sama-sama tercemar berat, namun masing-masing kelompok memiliki perbedaan parameter pencirinya yang memperlihatkan pengaruh berbagai aktifitas di darat maupun di perairan itu sendiri.Kata kunci: Distribusi spasial, Kualitas air, Sungai Siak, Parameter fisika dan kimia, PCA

scholarly journals TELEMETRY NETWORK FOR MONITORING QUALITY OF IRRIGATION WATER IN KAVALA (N.GREECE)

2017 ◽  
Vol 43 (4) ◽  
pp. 1812
Author(s):  
Y. Mertzanides ◽  
V. Ziannos ◽  
C. Tsobanoglou ◽  
E. Kosmidis
Keyword(s):  
Water Resources ◽  
Real Time ◽  
Irrigation Water ◽  
Land Reclamation ◽  
Significant Proportion ◽  
Scientific Data ◽  
Local Economy ◽  
Rational Management ◽  
Quality Of Irrigation Water

In places where primary and secondary economic sectors are significant proportion of local economy, the quantity and quality of irrigation water has not only environmental but also economical and social affects in local society. A rational management of water resources demands reliable and quick information of the quality of irrigation water especially during summer. The monthly scheduled samplings that are usually followed by the state services in some cases are not adequate. A telemetry network of four stations for real-time monitoring the quality of irrigation water was designed by Directorate of Land Reclamation/Prefecture of Kavala. It covers the most important agricultural areas of prefecture, including the island of Thassos. Stations are equipped with modern and robust instrumentation (multiparameter sensors, data loggers, modems, ups, sophisticated software, etc) to measure physicochemical characteristics of surface and ground water. The records are 24 hours a day and they are transmitted via GPRS. It consists an innovative initiative for local authorities to have the ability of real-time information about the quality of irrigation water and hereupon plan their actions. The system is expected to provide useful scientific data and an effective tool towards a policy of rational management of local water resources.

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