EFEKTIFITAS CONE AERATOR DAN FILTRASI KULIT KERANG DALAM MENURUNKAN KADAR BESI (Fe) DAN KADAR KEKERUHAN PADA AIR SUMUR GALI

In West Kalimantan that the access level of protection of clean water only reached 41% of the target MGD's by45.1%, therefore most people use groundwater for their daily needs. Groundwater is a source for the daily needs of the community in Parit Bugis Gang Mustika 1 Kuburaya district so that people looking for alternative sources of clean water. From the beginning pedahualuan test showed levels of iron (Fe) is 4.36 mg / l and turbidity 58NTU.kandungan appropriate RI Permenkes 416 / Menkes / Per / IX / 1990, concerning water quality standardsare 25 NTU turbidity womb and womb iron (Fe) 1 mg / l. This research aims to reduce the content of turbidity and iron content (Fe). The specific objective Analyzing the difference turbidity content and the content of iron (Fe) before and after and see the use of aerators and filtration Cone shells and look at the effectiveness before and after filtration Cone Aerator and seashells in lowering levels of turbidity and levels of iron (Fe). This study is True Experiment (Experiment Pure) aims to determine the ability of aerators and filtration Cone shells in reducing turbidity and iron (Fe) in water wells. The research sample of 24 samples. The statistical test used was Test T Test. Paired sample test results showed that there were significant differences between the content of turbidity and iron content (Fe) before and after using aerators and filtration cone shells. cone method aerator significant value of0.000 <0.05 and filtration seashells significant value of 0.000 <0.05. Seashells filtration method is more effective in decreasing Fe compared to the cone aerator. , For people in the trenches Bugis alley mustika 1 This method can be used as a water treatment in water wells for maximum results that people can use lime as coagulant dosage in accordance with usage.

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Effectiveness of Multiple Tray-aerators in Reducing Iron (Fe) Water Wells in Gowa Regency, Indonesia

10.31227/osf.io/yzxcg ◽

2019 ◽

Author(s):

Ronny ◽

Abdul Hafid Hasim

Keyword(s):

Random Sampling ◽

Statistical Testing ◽

Clean Water ◽

Water Requirements ◽

Average Percentage ◽

Water Wells ◽

Before And After ◽

The Difference ◽

Aeration Process ◽

Rate Of Decline

The aim of this study was to see the effectiveness of aeration in decreased levels of iron (Fe) in water wells before and after the aeration process using multiple tray aerator methods. The use of multiple tray aeration is expected to reduce the levels of iron (Fe) in water wells. This research is an experiment with 30 samples of good water that had higher levels of iron (Fe), which do not qualify as water obtained by non-random sampling in Gowa Regency. To find out the effectiveness decreased levels of iron (Fe) before and after aeration performed with SPSS statistical testing. The results obtained show the rate of decline in levels of iron (Fe) average about 2.21 mg/L with an average percentage of 68.01% decline. Value levels of iron (Fe) on average after aeration obtained at 1.12 mg/L. Although it has seen a decline the effective look at the results showed significant before and after the aeration is done but not yet clean water requirements with value levels of iron (Fe) up to 1.00. In contrast to the results of another study that the results of decreased levels of iron (Fe) obtained only around 0.20 mg/L or simply a decline of about 10%. The difference in the results achieved by the research conducted in the laboratory with a reduction of circulating air in the rooms was not big. To achieve the levels of iron (Fe) to fit the requirements it is necessary to further processing after aeration. Aeration method with multiple tray aerator can reduce levels of iron (Fe) in water wells significantly but the results are not yet qualified to clean water.

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Effectiveness of Multiple Tray-aerators in Reducing Iron (Fe) Water Wells in Gowa Regency, Indonesia

10.31227/osf.io/nvpbh ◽

2019 ◽

Author(s):

Ronny ◽

Abdul Hafid Hasim

Keyword(s):

Random Sampling ◽

Statistical Testing ◽

Clean Water ◽

Water Requirements ◽

Average Percentage ◽

Water Wells ◽

Before And After ◽

The Difference ◽

Aeration Process ◽

Rate Of Decline

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Effectiveness of Multiple Tray-aerators in Reducing Iron (Fe) Water Wells in Gowa Regency, Indonesia

10.31227/osf.io/yqv8j ◽

2019 ◽

Author(s):

Ronny ◽

Abdul Hafid Hasim

Keyword(s):

Random Sampling ◽

Statistical Testing ◽

Clean Water ◽

Water Requirements ◽

Average Percentage ◽

Water Wells ◽

Before And After ◽

The Difference ◽

Aeration Process ◽

Rate Of Decline

The aim of this study was to see the effectiveness of aeration in decreased levels of iron (Fe) in water wells before and after the aeration process using multiple tray aerator methods. The use of multiple tray aeration is expected to reduce the levels of iron (Fe) in water wells. This research is an experiment with 30 samples of good water that had higher levels of iron (Fe), which do not qualify as water obtained by non-random sampling in Gowa Regency. To find out the effectiveness decreased levels of iron (Fe) before and after aeration performed with SPSS statistical testing. The results obtained show the rate of decline in levels of iron (Fe) average about 2.21 mg/L with an average percentage of 68.01% decline. Value levels of iron (Fe) on average after aeration obtained at 1.12 mg/L. Although it has seen a decline the effective look at the results showed significant before and after the aeration is done but not yet clean water requirements with value levels of iron (Fe) up to 1.00. In contrast to the results of another study that the results of decreased levels of iron (Fe) obtained only around 0.20 mg/L or simply a decline of about 10%. The difference in the results achieved by the research conducted in the laboratory with a reduction of circulating air in the rooms was not big. To achieve the levels of iron (Fe) to fit the requirements it is necessary to further processing after aeration. Aeration method with multiple tray aerator can reduce levels of iron (Fe) in water wells. significantly but the results are not yet qualified to clean water

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RESOLUSI KONFLIK PEMILIHAN KEPALA DAERAH DI KECAMATAN TALAGA RAYA KABUPATEN BUTON TENGAH

ASKETIK ◽

10.30762/ask.v3i2.1563 ◽

2019 ◽

Vol 3 (2) ◽

pp. 197-208

Author(s):

Mahrudin Mahrudin

Keyword(s):

Local Elections ◽

Clean Water ◽

Case Study Approach ◽

Study Approach ◽

Before And After ◽

The Difference ◽

The Government ◽

Negative Impacts ◽

Descriptive Method

The purpose of this paper is to examine and identify the problems that are the source of conflict over local elections in Talaga Raya District. This research focuses on conflicts that occur before and after local elections. By using a descriptive method and a case study approach, the results of the study showed that the conflict over the regional head election in Talaga Raya District originated from the Difference in Choice, Misunderstanding, Some Parties were disadvantaged and feeling sensitive. In addition, the conflict of local election which took place before and after the election had implications for the conflict over the control of fresh water sources which resulted in horizontal and vertical conflicts. Besides this conflict has also brought its own wisdom with the increase in the source of clean water which had only been one to three sources. Based on these results it can be said that besides bringing down the negative impacts of the conflict it can also bring down positive impacts in the Talaga Raya sub-district community. Therefore, in terms of conflict resolution, the government should be able to minimize the conflict as early as possible so it does not drag on so that it does not lead to physical conflict.

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PENURUNAN KADAR Fe DENGAN MEMBRAN KERAMIK PADA AIR SUMUR (Studi Kasus Pada Wilayah Kerja Puskesmas Putat Jaya Tahun 2018)

GEMA LINGKUNGAN KESEHATAN ◽

10.36568/kesling.v16i3.889 ◽

2019 ◽

Vol 16 (3) ◽

Author(s):

Anggit Prameitya ◽

Darjati . ◽

Ernita Sari

Keyword(s):

Ceramic Membrane ◽

Membrane Filter ◽

Ceramic Membranes ◽

Appropriate Technology ◽

Well Water ◽

Membrane Thickness ◽

Clean Water ◽

Filter Media ◽

Filtration Method ◽

Before And After

Water is the element of life that is essential for survival. Along with the rapid growth of the human being, the demand for water increases. Now this, many water sources are contaminated, clean one of the impacts that cause pollution is that there is content of Fe in the water. Fe is the secondary contaminants that become problems in the provision of clean water is especially groundwater. The content of Fe exceeds quality raw processing must be done first before used to clean water. This research aims to analyze Fe levels before and after filtration is done using ceramic membrane media with a thickness of 5 cm and 7 cm in well water.This research is experimental research, using design research True Experiment with form One Group Pretest-Posttest. The object of this research that is well water containing Fe levels with a total of 32 Research sample sample. Further data obtained were analyzed using analytical test in Paired-Samples T Test.The results showed that the ceramic membrane filter media thickness 5 cm and 7 cm is capable of lowering the average rate of 8.11 Fe mg/l be 5.9 mg/l and 3.6 mg/l. The results of statistical tests using Paired T-test Test earned the result that there is a difference Fe levels before and after treatment using ceramic membrane filter media with variations in the thickness of 5 cm and 7 cm.The conclusion of this research is the ceramic membrane thickness 7 cm has the difference decreased most in lowering levels of Fe on well water. It is recommended to increase the creativity in applying appropriate technology in filtration method. Keywords: water well, levels of Fe, ceramic membranes

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THE EFFECTIVENESS OF WATER FILTERS WITH ACTIVATED CARBON MEDIA OF BAGASSE SUGARCANE FOR REDUCING IRON LEVELS IN GROUNDWATER

International Journal of Medical and Biomedical Studies ◽

10.32553/ijmbs.v3i10.594 ◽

2019 ◽

Vol 3 (10) ◽

Author(s):

Zulfia Maharani ◽

N. Budi Santoso ◽

Amelia Anggraini ◽

Ismi Rajiani

Keyword(s):

Activated Carbon ◽

Environmental Health ◽

Iron Content ◽

Chemical Elements ◽

Chemistry Laboratory ◽

Laboratory Research ◽

Thickness Variation ◽

Clean Water ◽

Ministry Of Health ◽

Filtration Method

Background: Clean water supply can be obtained from various sources, both groundwater and surface water. Groundwater often contains high levels of iron (Fe). Many residents are forced to use water which in terms of quality does not meet the requirements, one of which is the chemical elements in the form of high iron content which can cause diarrhea, anemia, kidney damage that ends in death. Methods: This research is an experimental study to determine the effectiveness of bagasse activated carbon thickness in reducing iron (fe) levels in groundwater in Kebon Jeruk district, west Jakarta. This research was conducted at the workshop of environmental health department of health polytechnic of the ministry of health Jakarta. The water sample used was 45 liters, samples from electric pump wells treated with sugarcane bagasse activated carbon filtration with a thickness variation of 0 cm as control or without activated carbon bagasse, 30 cm, 45 cm, 60 cm, and 75 cm. Result: results of chemistry laboratory research at the department of environmental health polytechnic of the ministry of health Jakarta on the content of iron (fe) in groundwater, iron content (fe) before processing by filtration method using bagasse pulp activated carbon as much as 2.99 mg / l against allowable iron (fe) levels for clean water quality requirements based on ministry of health regulation no. 32 in 2017, the maximum allowable content of 1.0 mg / l. Conclusion: of the five treatments the most effective thickness of activated carbon reduces iron (fe), is at a thickness of 45 cm because it has been able to reduce iron levels below the maximum allowable level based on ministry of health regulation no. 32 in 2017 which is 1.0 mg / l. Keyword: Water Treatment, Sugar Cane Bagasse, Fe Reduction, Environmental Health, Environmental Chemistry

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Efek Hari Libur Lebaran Pada Emiten Yang Terdaftar Dalam ISSI Periode 2011-2013

Jurnal Ekonomi Syariah Teori dan Terapan ◽

10.20473/vol2iss20155pp372-386 ◽

2015 ◽

Vol 2 (5) ◽

pp. 372

Author(s):

Venny Julia Utomo ◽

Leo Herlambang

Keyword(s):

Abnormal Return ◽

Trading Volume ◽

Volume Activity ◽

Stock Trading ◽

Market Reactions ◽

Average Abnormal Return ◽

Before And After ◽

Sample Test ◽

Abnormal Trading Volume ◽

The Difference

This research aims to analyze the market reactions of Eid Mubarak Holiday which is indicated by the presence of average abnormal return and average abnormal trading volume activity on issuers in ISSI list within 2011-2013 period, and especially for the issuers which engaged in the field of food and drinking product industries, also retail industries as well.The method used in this research is event study which will analyze the alteration of price movements and volume of stock trading before and after Eid Mubarak Holiday. The hypothesis of this research is the presence of trading reaction that indicated by average normal return and the difference of average abnormal trading volume activity before and after Eid Mubarak Holiday. This research testing uses one sample-test to seek if there are any average normal returns around Eid Mubarak Holiday, while paired sample-test is used to test the difference of average normal trading volume activity before and after Eid Mubarak Holiday. The writer did the research within 41 days, divided into two periods. 30 days before Eid Mubarak Holiday and 10 days after Eid Mubarak Holiday. The amount of sample in this research is 31 issuers which have met the sampling criteria using purposive sampling.The result of the first hypothesis indicates that there is insignificant average abnormal return, while the second hypothesis indicates the difference of significant average abnormal trading volume activity.

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ANALYSIS OF WORKING CAPITAL FINANCING MEMBER OF REVENUES IN CONVENTIONAL AND ISLAMIC COOPERATION

Econosains Jurnal Online Ekonomi dan Pendidikan ◽

10.21009/econosains.0152.04 ◽

2017 ◽

Vol 15 (2) ◽

pp. 211-224

Author(s):

Dian Lestari ◽

Saparuddin Mukhtar ◽

Herlitah Herlitah

Keyword(s):

Sampling Technique ◽

Test Sample ◽

Structured Interview ◽

Working Capital ◽

Interview Methods ◽

Before And After ◽

Sample Test ◽

Capital Financing ◽

The Difference ◽

Depth Interviews

This study aims to determine the effect of working capital financing on revenues of members businesses at PEMK Cengkareng Timur Cooperative and BMT Ta'awun Finance, the difference of revenues of members businesses after and before receiving working capital financing from PEMK Cengkareng Timur Cooperative and BMT Ta'awun Finance, and difference revenues of members businesses after receiving working capital financing between Koperasi PEMK Cengkareng Timur and BMT Ta'awun Finace. Methods of data acquisition used with structured interview methods and in-depth interviews. The population in the study were all members who received working capital financing in 2016 at PEMK Cengkareng Timur Cooperative and BMT Ta'awun Finace. The sample used is 30 members from each cooperative with sampling technique in the form of census and purposive sampling. Data analysis used is multiple regression analysis, paired t sample test, and independent t test sample test. The result of research is showed there is the effect of working capital finance with revenues of members businesses at PEMK Cengkareng Timur tcount (2,142) > ttable (2.048) and in BMT Ta’awun Finance tcount (2,688) > ttable (2.048), there is difference before and after working capital financing to revenues of members businesses in both cooperatives because of the probability value of 0,000 <0.05, and there is a difference in the income of members who receive working capital financing from the two cooperatives seen from tcount 0.00 <0.05.

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BATU BARA SEBAGAI ADSORBEN

JURNAL MEDIA KESEHATAN ◽

10.33088/jmk.v10i1.330 ◽

2018 ◽

Vol 10 (1) ◽

pp. 098-101

Author(s):

Riang Adeko

Keyword(s):

Thickness Variation ◽

Treatment Results ◽

Water Wells ◽

Fe Content ◽

Measurement Results ◽

Before And After ◽

Post Test ◽

The Difference ◽

Initial Survey

Providing clean water to the community has a very important role inimproving the environment or public health, which has a role in reducing the number ofpeople with the disease, especially those related to water, and its role in improving thestandard or level / quality of life. initial survey conducted on February 20, 2016 in RW.03 Village Rawa Makmur Permai Bengkulu City after measurements were obtained Iron(Fe) 0.9 mg / L; Manganese (Mn) of 0.87 mg / L. From the measurement results in theinitial survey is known that water wells RW.03 village residents Rawa Makmur PermaiBengkulu city still exceeds the threshold required by Permenkes RI 416 / Menkes / per /IX / 1990. The purpose of this study was to determine the reduced levels of Fe and Mnbefore and after treatment by using a variation of coal thickness of 20 cm, 30 cm and 50cm as well as to the most effective menegetahui thickness variation to reduce levels of Feand Mn. This research uses experimental methods pure (True Experimental) experimentaldesign with Pre-Post test, the research conducted before and after treatment. Then lookfor the difference between the measurement of both, and the difference is considered as aresult of treatment. Results of the study is the reduction of Fe content using coaldecreased by 42% and decreased levels of Mn using coal decreased by 35%. The resultshowed that the thicker the more effective adsorbent decline.

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Tem analysis of multiple-energy arsenic implanted and Rta'd silicon

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100126135 ◽

1987 ◽

Vol 45 ◽

pp. 246-247

Author(s):

R.A. Herring

Keyword(s):

Device Fabrication ◽

High Concentration ◽

Tem Analysis ◽

Defect Clusters ◽

High Fluences ◽

Small Defect ◽

Before And After ◽

The Matrix ◽

The Difference ◽

Factor Type

Rapid thermal annealing (RTA) of ion-implanted Si is important for device fabrication. The defect structures of 2.5, 4.0, and 6.0 MeV As-implanted silicon irradiated to fluences of 2E14, 4E14, and 6E14, respectively, have been analyzed by electron diffraction both before and after RTA at 1100°C for 10 seconds. At such high fluences and energies the implanted As ions change the Si from crystalline to amorphous. Three distinct amorphous regions emerge due to the three implantation energies used (Fig. 1). The amorphous regions are separated from each other by crystalline Si (marked L1, L2, and L3 in Fig. 1) which contains a high concentration of small defect clusters. The small defect clusters were similar to what had been determined earlier as being amorphous zones since their contrast was principally of the structure-factor type that arises due to the difference in extinction distance between the matrix and damage regions.

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