The influence of the ecohydrological rehabilitation in the cascade of Arturówek reservoirs in Łódź (Central Poland) on the cyanobacterial and algae blooming

2015 ◽  
Vol 44 (2) ◽  
Author(s):  
Bogusław Szulc ◽  
Tomasz Jurczak ◽  
Katarzyna Szulc ◽  
Zbigniew Kaczkowski
Keyword(s):  
Great Influence ◽  
Ecological Status ◽  
Cyanobacterial Blooms ◽  
Chemical Parameters ◽  
Vegetation Zones ◽  
Quality Of Water ◽  
Surrounding Areas ◽  
Cyanobacteria And Algae ◽  
Physical And Chemical

AbstractThe objective of the studies included a complex of three reservoirs (upper, middle and lower Arturówek) which play an important recreational role for the residents of the Łódź city and the surrounding areas. The reservoirs were constructed on the Bzura River and are located in the area of the Łódź Hills Landscape Park. The river, the ecological status of which was defined as moderate, has a great influence on the quality of water in the Arturówek reservoirs. A total of 36 planktonic samples were collected in 2011-2013 during spring, summer and autumn seasons. During the studies, the selected physical and chemical parameters were measured. In addition to taxonomic analysis of Cyanobacteria and algae, the analyses of abundance and biomass of phytoplankton and the concentration of microcystins in water were conducted. In 2013, ecohydrological rehabilitation of the Arturówek reservoirs was carried out. Investment works included: removal of the bottom sediments to reduce internal loads, construction of buffer vegetation zones (ecotones) and sedimentation-biofiltration systems to reduce the amounts of pollutants flowing into reservoirs with rainwater. Significant changes in the structure of phytoplankton were observed in 2013. Every year, the disappearance of Cyanobacterial blooms was observed in favor of an increasing contribution of algae.

scholarly journals Cost Effective Purification of Tannery Waste Water Using Biosynthesized Silver Nanoparticles

2021 ◽  
Vol 37 (3) ◽  
pp. 667-672
Author(s):  
A. Arputharaj ◽  
P. Anbarasu
Keyword(s):  
Silver Nanoparticles ◽  
Cost Effective ◽  
Root Extract ◽  
Health Issues ◽  
Chemical Parameters ◽  
Quality Of Water ◽  
Physico Chemical ◽  
Tannery Waste Water ◽  
Physical And Chemical

The nanotechnology has reached a greater extent of the research and now it is considered as the best source of alternative in the present world. Nowadays, the contaminants present in the water should be very difficult to remove and it leads to several health issues. It is the primary requisite to know about the different physico-chemical parameters to check the quality of water. Currently, the nanotechnology has been the emerging technology and the green synthesis is acclimating to eco-friendly, non-toxic and this method reduces the pollution. This biological approach is undertaken to diminish toxicity and to reduce pollution. In these current studies, the silver nanoparticles can be synthesized from chrysopogan zizanioides root extract. The synthesised silver nanoparticles were characterized by UV-Vis, TEM, physical and chemical parameters of water quality. The synthesised silver nanoparticles were used to reduce the chemical effluents. The outcome of the synthesis silver nanoparticles is using the vital route of wastewater treatment and also effectively reduces the water contaminations.

scholarly journals Review of Overlandflow Quality in Densely Settled Sub-Urban Areas

2004 ◽  
Vol 11 (2) ◽  
Author(s):  
S Sudarmadji
Keyword(s):  
Urban Area ◽  
Urban Areas ◽  
Open Space ◽  
Chemical Parameters ◽  
High Concentration ◽  
Quality Of Water ◽  
Run Off ◽  
Dispersion Agent ◽  
Physical And Chemical

The study aims to analyse quality of water from overlandflow in the sub-urban area having high of to houses, in the Sinduharjo, Sleman regency. In the sub urban area, the run off originated from paved and impermeable are which is not uniformaly distributed over the area. Run off is iniated from detention storage and overlandflow. Therefore any water pollution of the runoof begin from overlandflow which dissolves constituent within the soil and rock materials. Land cover also determines the dispersion agent of rain water thus the affect the material dissolved in the water. As an input into the catchment system, rainfall affects overlandflow, quantitative, and qualitatively. Overlandflow from open space in the sub-urban area was evaluated based on physical and chemical characteristics. Overlandflow from urban area has chemical parameters such as C, NO2, NO3, and PO4 are higher than those in overlandflow from rural area which is covered by forest and garden. Overlandflow shows BOD and COD in relatively high concentration. Overlandflow is not recomended to be discharge into infiltration wells, unless it is free from parts having high significant contamination.

scholarly journals A STUDY TO ACCESS THE PHYSIO-CHEMICAL PARAMETERS OF WATER QUALITY OF SELECTED PONDS FROM THREE DISTRICTS OF TAMIL NADU, INDIA

2021 ◽  
Vol 21 (2) ◽  
Author(s):  
Kamalasan Prathap- Mathan ◽  
Joseph Babila- Jasmine ◽  
Muthukumar Thilagavathi
Keyword(s):  
Tamil Nadu ◽  
Microbial Contamination ◽  
Renewable Resource ◽  
Chemical Parameters ◽  
Chemical Examination ◽  
Physiochemical Parameters ◽  
The Earth ◽  
Living Organisms ◽  
Physical And Chemical

Water is the most abundant and non-renewable resource in the earth, which play an important role in all living organisms. A study on physiochemical parameters of Manur, Vallanadu and Sundarapandiapatinam ponds from Tirunelveli, Thootukudi and Ramanathapuram districts of Tamil Nadu, India, has addressed the seasonal changes. During the month of January to April samples from Manur was chemically portable, Vallanadu sample was physically portable, Sundarapandiapatinam samples were physically and chemically not portable. During the month of May to August Vallanadu and Manur samples were portable by its physical and chemical examination, Sundarapandiapatinam samples were non portable by its physiochemical property. September to December the samples from all the three ponds were non portable because of exceeding the permissible limit. All the samples were bacteriologically unsafe in nature because of its microbial contamination. This implies the water bodies are not fit for domestic and drinking purpose, thus proper management has to be done by the society and implement government guidelines to save the natural resources from manmade activities.

scholarly journals Cladocera remains and vegetation types to assess the state of oxbows

2018 ◽  
Vol 29 ◽  
pp. 27-39
Author(s):  
István Gyulai ◽  
Csilla Lakatos ◽  
János Tamás Kundrát ◽  
Zsuzsanna Balogh ◽  
Edina Simon ◽  
...  
Keyword(s):  
Surface Sediment ◽  
Ecological Status ◽  
Open Water ◽  
Vegetation Types ◽  
Freshwater Lakes ◽  
Chemical Parameters ◽  
Habitat Types ◽  
Cladocera Remains ◽  
Significant Difference ◽  
Physical And Chemical

We assessed the usefulness of Cladocera remains for establishing the ecological status of oxbows and also tested the association of Cladocera species with various vegetation types. Cladocera remains were collected from the surface sediment of four habitat types (tangled vegetation, open water, reeds and tunnels) and 15 physical and chemical parameters of surface water were studied. In the surface sediment samples, we identified 32 Cladocera taxa. There was a significant difference in the number of species amongst habitat types as per ANOVA. The benthic and plant associated Cladocera communities of reeds, tangled vegetation, open water and tunnels were clearly separated from each other by NMDS ordination. CCA showed that habitat types had characteristic Cladocera species: Pleuroxus species were frequent in the tangled vegetation habitat, while Chydorus species were frequent in the open water. Remarkably, in reeds, Bosmina species were frequent, although these species are usually common in open water. Specimens of the Alona genus were found everywhere. Our findings suggest that the remains of Cladocera species may be useful indicators to assess and monitor the structure of freshwater lakes.

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 Distribution and isolation of microalgae for lipid production in selected freshwater reservoirs of northern Thailand

2018 ◽  
Vol 19 (1) ◽  
pp. 343-350
Author(s):  
TIPPAWAN PRASERTSIN ◽  
YUWADEE PEERAPORNPISAL
Keyword(s):  
Water Quality ◽  
Lipid Content ◽  
Trophic Status ◽  
Lipid Production ◽  
Dry Weight ◽  
Botryococcus Braunii ◽  
Chemical Parameters ◽  
Northern Thailand ◽  
Surrounding Areas ◽  
Physical And Chemical

Prasertsin T, Peerapornpisal Y. 2018. Distribution and isolation of microalgae for lipid production in selected freshwater reservoirs of northern Thailand. Biodiversitas 19: 343-350. Nong Bau Reservoir and Chiang Saen Lake are considered important freshwater reservoirs of Chiang Rai Province located in northern Thailand. The surrounding areas of these water bodies are host to a range of human activities that influence water quality. Moreover, to date, there are have not been any studies on the water quality and the distribution of microalgae in these places. The physical and chemical parameters of the water quality and microalgae were carried out in Nong Bua Reservoir and Chiang Saen Lake during the months of May, July, and October of 2015. Microalgae were isolated in order to investigate the lipid-producing abilities. Samples collected from Nong Bua Reservoir have revealed the presence of seven divisions, 90 species of algae. Six divisions, 55 species of algae were found in Chiang Saen Lake. The trophic status of the water was evaluated from the main parameters (AARL-PC Score), and it was determined that Nong Bua Reservoir was of meso-eutrophic status and Chiang Saen Lake was of mesotrophic status. Microalgae were isolated from Nong Bua Reservoir and Chiang Saen Lake for the purposes of studying lipid content; 25 and 6 isolations were identified, respectively. The lipid content was highest in Botryococcus braunii (39.25 ± 0.32% dry weight) followed by Ankistrodesmus sp. (26.80 ± 0.44% dry weight) and Coelastrum microsporum (24.95 ± 0.55% dry weight). The lowest lipid content was found in Planktolyngbya sp. (7.25 ± 0.43% dry weight). The indigenous strains of microalgae of Nong Bau Reservoir and Chiang Saen Lake’s can be considered quite promising as model strains in terms of the production of biofuel within the country.

scholarly journals Environmental assessment of water quality in various lakes of the Volyn region, which is intensively used in recreation

2020 ◽  
Keyword(s):  
Water Quality ◽  
Environmental Assessment ◽  
Ecological Status ◽  
Ecological Assessment ◽  
Limiting Factors ◽  
Practical Significance ◽  
High Quality ◽  
Ecological Index ◽  
Quality Of Water

Introduction. Assessment of the ecological status of lakes is important for their conservation and protection. Many lakes are intensively used in recreation in Volyn Region. The development of the resort and recreational facilities requires significant additional volumes of fresh water to maintain the depth of the reservoirs in the bathing area, certain sanitary and temperature regimes of the reservoirs. The limiting factors are the sanitary and hygienic indicators of water. First and foremost, high quality of water should be provided for the organization of contact types of recreation (bathing, diving, water skiing, etc.). The purpose of article. The purpose of the article is ecological assessment of water quality in various lakes of Volyn Region, which are most intensively used in recreation. Methods. Research methods are expeditionary, methods of mathematical statistics and environmental assessment of water quality, which were carried out in accordance with the methodology for assessing the quality of surface water in the respective categories. During the preparation of the article, materials from their own expeditionary studies of the natural-economic state of the lakes were used, as well as the results of chemical analysis of the water composition conducted by the Water and Soil Monitoring Laboratory of the Regional Water Resources Office in Volyn Region and the Complex Laboratory for Observation of the Environmental Environmental Center. Results. The analysis of the qualitative indicators of the lakes Svitiaz, Velyke Zgoranske and Somyn showed the high quality of water in the lakes. For the period of 2015–2019, water quality was classified as „good” class II, by degree of cleanliness „clean”, by category as „very good”, by degree of cleanliness „clean” on all lakes. The value of IE for the Lake Velyke Zgoranske varied in the range of 1.81–2.44, in the range of 1.66–2.07 for the Lake Svitiaz, and in the range of 2.56–2.96 for the Lake Somyn. Index І2 (ecological and sanitary indicators) has the most influence on the magnitude of the ecological index of water quality. The scientific novelty lies in establishing block and integral indexes of ecological assessment of water quality, classes and categories of water quality of the most recreationally-developed lakes of Volyn Region, as well as in assessment of the dynamics of indicators of water quality of lakes during the years of 2015–19. Practical significance is defined with the opportunity of development of a set of measures for the rational use and protection of lakes.

scholarly journals Effect of season on Ejaculate Quality of three phenotypes of Nigerian Local Cocks

2021 ◽  
Vol 34 (2) ◽  
pp. 323-329
Author(s):  
N.S Machebe ◽  
A.G Ezekwe
Keyword(s):  
Gradual Increase ◽  
Dry Season ◽  
Seasonal Effects ◽  
Chemical Parameters ◽  
Sodium Potassium ◽  
Naked Neck ◽  
Dry Seasons ◽  
Physical And Chemical ◽  
Season Interaction

Twenty four (24) adult Nigerian local cocks comprising 8 normal, 8 frizzle and 8 naked-neck were subjected to two ejaculations per week for seven weeks in each season (early rain, lale rain, early dry and late dry seasons) using the massage technique. Ejaculates were subjected to both physical and chemical evaluations. Results showed a significant (P<0.01) seasonal effects between phenotypes in reaction time. In all the seasons, naked-neck and frizzle cocks had higher (P<0.01) ejaculate volume, sperm motility and total sperm than normal cocks. A highly significant (P<0.01) phenotype by season interaction was observed with naked-neck producing better quality ejaculates during the dry season when compared to other phenotypes. Significant (P<0.05) differences were noted in the percent abnormal sperm among the seasons. There were no significant season by phenotype interactions (P>0.05) in most of the chemical parameters (Na+1, K+1, Ca2+, Mg2+, and total protein) evaluated. However, a gradual increase in seminal protein was observed among the phenotypes with a peak during late dry season. The cations (particularly sodium, potassium and calcium) and chloride constituents of ejaculates were significantly lower during the late dry season than at most other seasons. From these results it was concluded that the naked-neck and frizzle cocks appear superior to the normal cocks in semen output and quality under the humid tropical environment.

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