scholarly journals Effect of Magnetotron on the Rates of Growth and Fecundity in Ostracoda Cyprislaevis O.F Müller,1776 under the Laboratory Conditions

2014 ◽  
Vol 8 (4) ◽  
pp. 42-45
Author(s):  
Qater Al-Nada Ali Kanaem Al-Ibady
Keyword(s):  
Water Treatment ◽  
Raw Water ◽  
Laboratory Conditions ◽  
Water Cleaning ◽  
Untreated Water ◽  
Males And Females ◽  
Biological Aspects ◽  
Rates Of Growth ◽  
Scientific Fields ◽  
Magnetic Water

The Magneototron technique considers as recent and advanced techniques in magnetic water treatment, which application in different; ecological, agricultures, industrial, medical and scientific fields. Therefore this study making to determine the effects of Magnetotron system with different intensities 0.05,0.10 and 0.15 Tesla on some biological aspects for one species of freshwater Ostracoda cyprislaevis O.F. Müller, 1776 for economical important, because both juveniles and adults of fishes feeding on it and as a tool for water cleaning, which consideration feeding on dead and decay animals and vegetables The samples of Ostracoda were collected from Al-Jaesh canal- Baghdad province for period from 1/9/2012 to 1/11/2012.The obtained results compared with this species of Ostracoda which lived in raw water (unexposed to magnetotron system).The present study demonstrated increased significance the rates of growth by increased the bivalve carapace dimensions (length and width) for both ostracodean males and females with increased intensity of magnetotron system comparative with untreated water. Although increase significant observed in fecundity in ostracodean females by increase the number and diameter of eggs with increased intensity comported with untreated females. Also this study detected to predominant females upon males in both treated and untreated water with magnetotron system. Then the magnetotron system does not effect on heterogonous in sexual formation for this species in same ecosystem.

scholarly journals Effect of Magnetized Water Treatment on some Biological Aspects for Fresh Water Snail Lymnaea lagotis (Schrank,1803)

2014 ◽  
Vol 11 (2) ◽  
pp. 975-982
Author(s):  
Baghdad Science Journal
Keyword(s):  
Water Treatment ◽  
Egg Mass ◽  
Shell Size ◽  
Important Species ◽  
Magnetized Water ◽  
Untreated Water ◽  
Fresh Water Snail ◽  
Aperture Width ◽  
Biological Aspects ◽  
River Control

Exposure assays to magnetized water have so far revealed striking results. The present study was conducted to determine the effects of magnetized water treatment with in different intensities 500 , 1000 and 1500 Gauss on some biological aspects for species of freshwater Gastropod Lymnaea lagotis (Schrank, 1803) which important species in faun of aquatic habitats of Iraq. This species are considered a component of the food chain. The obtained results compared with these species which lived in the river(control). Result of these experiments showed increased significance the shell size (shell high, shell aperture length, shell aperture width and shell width) for L. lagotis with increased intensity magnetized water such as treated water with 1000 Gauss intensity compared with untreated water. Although increase significant was observed to fecundity for snails such as (egg mass dimensions, number and diameter of eggs and survival juveniles) with increased intensity of magnetized water comparative with untreated water.

scholarly journals Magnetic water treatment in a wastewater treatment plant: Part I - sorption and magnetic particles

2021 ◽  
Vol 281 ◽  
pp. 111872
Author(s):  
Teresa Castelo-Grande ◽  
Paulo A. Augusto ◽  
Javier Rico ◽  
Jorge Marcos ◽  
Roberto Iglesias ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
Wastewater Treatment Plant ◽  
Magnetic Particles ◽  
Treatment Plant ◽  
Plant Part ◽  
Magnetic Water

Swing Operation Envelope of River-Sourced Water Treatment Facility for Water Injection Purpose in Banyu Urip Field

2021 ◽  
Author(s):  
Muhammad Amin Rois ◽  
Willy Dharmawan
Keyword(s):  
Water Treatment ◽  
River Water ◽  
Rainy Season ◽  
Treatment Cost ◽  
Water Injection ◽  
Injection Rate ◽  
Raw Water ◽  
Treatment Facility ◽  
Water Parameters ◽  
Water Basin

Abstract Banyu Urip reservoir management heavily rely on river-sourced water as water injection to meet Voidage Replacement Ratio target of 1. The treatment facility which consist of Raw Water Basin, Clarifiers, Multi Media Fine (MMF) Filters and Cartridge Filters, is sensitive to seasonal transition and river condition. This paper shares lesson learnt in operating such facility and troubleshooting guidance to overcome challenges of high turbidity during rainy season and lack of river water volume during drought season. To maintain the design intent of Banyu Urip (BU) water treatment facility in achieving water injection quality and quantity at reasonable cost, following activities were undertaken: [1] Critical water parameters data gathering & analysis across each unit; [2] Clarifier Chemical injection dosage verification based on laboratory test; [3] MMF Media coring inspection to assess the filtering media condition; [4] MMF Filters backwash parameters optimization; [5] MMF Filter on-off valve sequencing optimization to address water hammering issue; [6] Water injection rate management to deal with river water source availability along the year. Critical water parameters analysis revealed that chemical dosages were in-adequate to treat the five times higher turbidity coming into Clarifiers during early rain 2019. On top of this, low Raw Water Basin level at the end of long drought further contributed to jeopardize Clarifier's operation. Although in-adequate chemicals injection was resolved at early 2020, the treatment cost remained high, especially on filtration section. Media coring result on MMF Filters confirmed that the filtering media have been poisoned by carried-over mud from Clarifiers during upset. The operation of MMF Filters required extensive optimization on backwash parameters to successfully recover the MMF Filters performance without media replacement. Latest media coring on the worst MMF Filter showed that there was no more top mud layer and the amount of trapped mud had been decreased significantly. Cartridge Filter replacement interval was improved from 38 hours to 186 hours, therefore water treatment cost dropped with quite significant margin. Additionally, the availability of each MMF Filters was also improved. At the same time, the high water injection rate during 2020 rainy season, had successfully increased reservoir pressure buffer up to its maximum point as the anticipation of prolonged drought season. This paper provides the troubleshooting guidance for MMF Filter application in season-prone water treatment facility including insights on interpretation of media coring result and linking it back to optimization strategy on the MMF Filters drain down time for effective backwash process without having excessive media loss.

scholarly journals Cyanobacteria and microcystin contamination in untreated and treated drinking water in Ghana

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Gloria Naa Dzama Addico ◽  
Jörg D. Hardege ◽  
Jiri Kohoutek ◽  
Kweku Amoaku Atta DeGraft-Johnson ◽  
Pavel Babica
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Human Health ◽  
Metropolitan Area ◽  
Cyanobacterial Blooms ◽  
Maximal Concentration ◽  
Raw Water ◽  
Treated Water ◽  
Treated Drinking Water ◽  
Who Guideline

<p>Although cyanobacterial blooms and cyanotoxins represent a worldwide-occurring phenomenon, there are large differences among different countries in cyanotoxin-related human health risk assessment, management practices and policies. While national standards, guideline values and detailed regulatory frameworks for effective management of cyanotoxin risks have been implemented in many industrialized countries, the extent of cyanobacteria occurrence and cyanotoxin contamination in certain geographical regions is under-reported and not very well understood. Such regions include major parts of tropical West and Central Africa, a region constisting of more than 25 countries occupying an area of 12 million km<sup>2</sup>, with a total population of 500 milion people. Only few studies focusing on cyanotoxin occurrence in this region have been published so far, and reports dealing specifically with cyanotoxin contamination in drinking water are extremely scarce. In this study, we report seasonal data on cyanobacteria and microcystin (MC) contamination in drinking water reservoirs and adjacent treatment plants located in Ghana, West Africa. During January-June 2005, concentrations of MCs were monitored in four treatment plants supplying drinking water to major metropolitan areas in Ghana: the treatment plants Barekese and Owabi, which serve Kumasi Metropolitan Area, and the plants Kpong and Weija, providing water for Accra-Tema Metropolitan Area. HPLC analyses showed that 65% samples of raw water at the intake of the treatment plants contained intracellular MCs (maximal detected concentration was 8.73 µg L<sup>-1</sup>), whereas dissolved toxins were detected in 33% of the samples. Significant reduction of cyanobacterial cell counts and MC concentrations was achieved during the entire monitoring period by the applied conventional water treatment methods (alum flocculation, sedimentation, rapid sand filtration and chlorination), and MC concentration in the final treated water never exceeded 1 µg L<sup>-1</sup> (WHO guideline limit for MCs in drinking water). However, cyanobacterial cells (93-3,055 cell mL<sup>-1</sup>) were frequently found in the final treated water and intracellular MCs were detected in 17% of the samples (maximal concentration 0.61 µg L<sup>-1</sup>), while dissolved MCs were present in 14% of the final treated water samples (maximal concentration 0.81 µg L<sup>-1</sup>). It indicates a borderline efficiency of the water treatment, thus MC concentrations in drinking water might exceed the WHO guideline limit if the treatment efficiency gets compromised. In addition, MC concentrations found in the raw water intake might represent significant human health risks for people living in areas with only a limited access to the treated or underground drinking water.</p>

scholarly journals ASPEKBIOLOGI IKANKURISI (Nemipterus japonicus) DI PERAIRANTELUKBANTEN

2016 ◽  
Vol 8 (1) ◽  
pp. 21
Author(s):  
Selvi Oktaviyani ◽  
Mennofatria Boer ◽  
Yonvitner Yonvitner
Keyword(s):  
Fisheries Management ◽  
Average Length ◽  
Maturity Stage ◽  
Allometric Growth ◽  
Fishing Activity ◽  
Fish Resources ◽  
Nemipterus Japonicus ◽  
Males And Females ◽  
Biological Aspects ◽  
First Maturity

<p>Ikan kurisi (<em>Nemipterus japonicus</em>) merupakan salah satu sumber daya ikan ekonomis penting di Perairan Teluk Banten dan banyak didaratkan di Pelabuhan Perikanan Nusantara (PPN) Karangantu, Banten. Intensitas penangkapan yang tinggi akan menyebabkan tangkap lebih (<em>overfishing</em>), sehingga mengancam kelestarian ikan kurisi. Penelitian ini bertujuan untuk mengetahui beberapa aspek biologi ikan kurisi di Perairan Teluk Banten, seperti struktur ukuran panjang, rasio kelamin, hubungan panjang berat, tingkat kematangan gonad, ukuran panjang rata-rata tertangkap (Lc) dan ukuran pertama kali matang gonad (Lm). Informasi yang diperoleh dapat menjadi bahan pertimbangan dalam kegiatan pengelolaan perikanan. Lokasi pengambilan contoh dilakukan di Pelabuhan Perikanan Nusantara (PPN) Karangantu, Banten dari bulan Mei hingga Agustus 2012. Hasil penelitian menunjukkan bahwa ukuran panjang total ikan kurisi<em> </em>berkisar antara 98 dan 211 mm. Perbandingan kelamin jantan dan betina dalam keadaan seimbang dan memiliki pola pertumbuhan allometrik negatif yang menunjukkan pertumbuhan panjang lebih cepat dibandingkan pertumbuhan beratnya. Lebih dari 50% ikan-ikan yang diamati baik jantan maupun betina selama bulan pengamatan belum matang gonad (<em>immature</em>).  Ukuran pertama kali matang gonad adalah 196 mm sedangkan ukuran panjang rata-rata tertangkap adalah 146 mm. Banyaknya ikan yang tertangkap dalam ukuran kecil (kurang dari panjang pertama kali matang gonad) akan mengganggu kelestarian ikan kurisi.</p><p><em><br /></em></p><p><em>Japanese threadfin bream </em>(Nemipterus japonicus<span style="text-decoration: underline;">)</span><em> is one of the most important economical fish resources in the Gulf of Banten and many landed at Archipelago Fishing Port (PPN) of Karangantu. High intensity of fishing activity can cause an overfihing, and threat sustainability of japanese threadfin bream. The research was aimed to determine some biological aspects of japanese threadfin bream in the Gulf of Banten, such as structure of the length, sex ratio, length-weight relationship, gonad maturity stage, the average length of captured (Lc) and the length of first maturity (Lm). It is believed that the collected information can be taken into consideration in the fisheries management activities. The sample was collected at PPN Karangantu, Banten from May to August 2012. The result showed that the length of </em><em>this fish </em><em>ranged between 98 and 211 mm. Ratio of male and female is balance and have negative allometric growth pattern show that the length of growth is more faster than the weight of growth. More than 50% of fish sample both males and females were immature gonads. During observation, length of  first maturity was 196 mm and the average length of captured was 146 mm. </em><em>Many fishes caught was smaller than Lm, It will interfere the sustainability of japanese threadfin bream.</em></p>

scholarly journals PENGARUH PEMBERIAN AIR MINUM DAN HERBAL BERBASIS MAGNETIC WATER TREATMENT TERHADAP PERFORMA AYAM PEDAGING

2020 ◽  
Vol 5 (1) ◽  
pp. 30
Author(s):  
Ainun Nikmah
Keyword(s):  
Water Treatment ◽  
Magnetic Water

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian air minum dan herbal berbasis magnetic water treatment terhadap performa ayam pedaging. Penelitian ini dilaksanakan dengan menggunakan metode eksperimental dengan menggunakan Rancangan Acak Lengkap dengan 5 perlakuan dan 5 ulangan. Perlakuan terdiri atas : Perlakuan Kontrol (P0); Air magnetisasi selama 30 menit tanpa pemberian herbal (P1); Air + herbal sebanyak 1,5 ml/l air minum  kemudian di magnetisasi selama 30 menit (P2); Air + herbal sebanyak 2,5 ml/l air minum  kemudian di magnetisasi selama 30 menit (P3); Air + herbal sebanyak 3,5 ml/l air minum  kemudian di magnetisasi selama 30 menit (P4). Data yang didapatkan kemudian dianalisis menggunakan sidik ragam (ANOVA). Hasil dari penelitian ini menunjukkan bahwa P0, P1, P2, dan P3 tidak memberikan pengaruh terhadap konsumsi pakan, konsumsi air minum, pertambahan bobot badan, konversi pakan dan mortalitas. Pemberian air minum dan herbal dosis 3,5 ml/liter air minum (P4) memberikan pengaruh terhadap pertambahan bobot badan. Kesimpulan dari penelitian ini bahwa herbal magnetisasi dapat diberikan dengan dosis 3,5 ml/liter air minum

scholarly journals Perencanaan Sistem Pemanfaatan Air Hujan sebagai Air Siap Minum di Kantor Dinas Pendidikan Provinsi DKI Jakarta

2020 ◽  
Vol 22 (2) ◽  
pp. 139-148
Author(s):  
Ilham Tri Purnomo ◽  
M. Zaky Alfarisi ◽  
Mutioro Sukmono
Keyword(s):  
Water Treatment ◽  
Reverse Osmosis ◽  
Green Building ◽  
Water Tank ◽  
Raw Water

Curah hujan yang tinggi di Jakarta merupakan potensi yang luar biasa dan perlu dimanfaatkan. Pemanfaatan air hujan menjadi air siap minum di Gedung Dinas Pendidikan Provinsi DKI Jakarta merupakan sebuah terobosan penerapan konsep bangunan green building di daerah Ibukota DKI Jakarta. Perencanaan diawali dengan menghitung kebutuhan air minum untuk karyawan di kantor dengan kebutuhan air minum sebanyak 480 liter/hari atau 132.480 liter/tahun. Air hujan difilter dua kali untuk memenuhi standar air minum, sehingga air dapat dikonsumsi. Eksisting raw water tank digunakan untuk menampung air baku hasil filter awal (pretreatment). Sistem pengaliran airnya menggunakan sistem gabungan, air dipompakan dari bak penampung menuju rooftank atau reservoir dengan kapasitas volume sebesar 2550 m3, kemudian air didistribusikan ke lokasi tempat air minum. Pemilihan filter akhir (treatment) dipilih dari perbandingan antara sistem reverses osmosis, sistem depot air minum, dengan sistem dispenser (galon) dan dihasilkan metode reverse osmosis lebih baik dari segi kualitas air serta menguntungkan dari segi ekonomis. Pada tahun ke-2 modal awal yang telah dikeluarkan pada tahun pertama telah kembali. Kemudian pada tahun berikutnya penghematan biaya meningkat. Dibutuhkan biaya keseluruhan pelaksanaan sebesar Rp. 496.636.000,00. Kata Kunci: air hujan, air siap minum, reverse osmosis, water treatment

scholarly journals Effect of Magnetic Irrigation Water on Apparent and Productive Characteristics of Bean crop (Viciafaba. L)

2019 ◽  
pp. 227-243
Author(s):  
Ali A. Made ◽  
Amal A. Alazarg ◽  
Almabrok Z. Alsharef ◽  
Karima K. Alturki ◽  
Mohamed A. Alafi
Keyword(s):  
Statistical Analysis ◽  
Irrigation Water ◽  
Germination Rate ◽  
Block Design ◽  
Chemical Properties ◽  
Magnetized Water ◽  
Third Stage ◽  
Untreated Water ◽  
Bean Crop ◽  
Magnetic Water

To achieve the objectives of the study, a field experiment was conducted in the area of Judaim 5 km east of the city of Zawiya - Libya at the farm of citizen Juma Al-Marhoon 2018. The experiment was designed with the design of randomized complete block design (RCBD Factorial) of three replicates, two varieties of bean crop (Viciafaba.L) (Cyprus and Aquadulcy), and two types of irrigation water (magnetic water Mw and non-magnetic water (N Mw). Soil samples from were collected at different depths over three time periods (after one and a half months and three months after harvesting). Some chemical properties of the samples were analyzed and measured. The results of statistical analysis of experiment data showed that the irrigation of the two varieties of bean crops (Cyprus and Aquadulcy) with magnetized water Mw compared to the non-magnetized water N Mw increased significantly in the number of plant branches and plant height. The increase was high significant in germination rate. The increase in productivity was significant in the weight of dry pods, the weight of dry seeds and the total weight of the plant and very high significant in the weight of 100 seeds (g). The other characteristics of the plant, such as vitality, weight, number of root nodes and harvesting index, were not affected by magnetic water. The results of the statistical analysis of soil collected in the first and third stage showed no significant differences between soil irrigated with magnetic water and irrigated soil with untreated water in most of the chemical properties of the soil, except for the dissolved potassium K and pH, the differences were highly significant in the soils collected in the third stage. The results of the statistical analysis of soil data collected in the second stage showed significant and high significant differences between soil irrigated with magnetic water and soil irrigated with untreated water in most of the chemical properties of the soil.

scholarly journals Capacity of earwig Marava arachidis (Yersin) to access fennel plants Foeniculum vulgare Mill in laboratory and field

2007 ◽  
Vol 37 (6) ◽  
pp. 1524-1528 ◽  
Author(s):  
Charles Ira Abramson ◽  
Paulo Alves Wanderley ◽  
Alexandre José Soares Miná ◽  
Maria José Araújo Wanderley
Keyword(s):  
Essential Oil ◽  
Field Experiment ◽  
Field Conditions ◽  
Foeniculum Vulgare ◽  
Independent Variables ◽  
Laboratory Conditions ◽  
Potential Capacity ◽  
Males And Females

This research was aimed at obtaining data about earwig behavior (Marava arachidis Y.) on fennel agro-ecosystems and evaluating its potential capacity to access plants in the absence of aphids under laboratory and field conditions. This study establishes a baseline to evaluate earwigs as biological controls to combat aphids that attack fennel plants. Two experiments were developed. In experiment 1, earwigs were studied under laboratory conditions, in experiment 2 under field conditions. Independent variables were sex, exposure to the essential oil of fennel for 24 or 48 hours, and whether the fennel plant was vegetative or flowering. The results indicated that earwigs will climb a fennel plant in the absence of aphids and that few statistical significant results were obtained among the independent variables examined. A difference between male and females was noted in the field experiment in animals receiving 48 h of exposure to the essential oil of fennel. The terminal height reached by males and females in the 48 h vegetative and flower condition also differed.

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