Keefektifan Dosis Kaporit [Ca(OCL)2] Dalam Menurunkan Kadar Amoniak (NH3) Pada Limbah Cair Rumah Sakit PKU Muhammadiyah Surakarta

Levels of ammonia (NH3) waste water PKU Muhammadiyah Surakarta Hospital has more than raw quality that has been set. After the test was obtained the results of the measurement of levels of ammonia in the PKU Muhammadiyah Surakarta Hospital got the results of 1,775 mg/l. According to the Regional Central Java province number 5 2012 about water quality standard waste hospital in central Province determined. Value to the parameters of ammonia by 0.1 mg/l.The purpose of this research is to know effectiveness of a dose of chlorine in lowering levels of ammonia liquid waste hospital. A method of the research is true research experiment with pre - post test with control design. Processing using chlorine in with a dose of 5 gr/l, 10 gr/l, and 15 gr/l with a method of slow manual stirring 10 rpm 10 minutes. The number of samples being tested as many as 24 samples, technique with the taking of specified the size of the sample with the quota of sampling. Using test statistic of one-way anova obtained value p-value 0,000 < α = 0,01 showed no difference in the level of controls, and treatment ammoniac between groups before and after the liquid waste processing PKU Muhammadiyah Surakarta Hospital. From test results showing a dose of lsd effective to lower ammonia levels of 5 g/l. Keywords : ammonia, chlorine, the liquid waste hospital

Pengaruh Variasi Dosis Tawas Terhadap Penurunan Kadar Phosphate Air Limbah Rumah Sakit PKU Muhammadiyah Surakarta

Liquid waste containing phosphate substances impact on human health .Levels of phosphate test based on the introduction that in doing in PKU Muhammadiyah Surakarta Hospital of 5,7 mg/l, these results more than raw waste water quality. One way that can be done is with the process of coagulation using koagulan alum. The purpose of this research is aware of the influence of alum doses of variations on the decline in levels of phosphate in PKU Muhammadiyah Surakarta Hospital. The type of research true experiment with pre-post test with control design. The location of research at PKU Muhammadiyah Surakarta Hospital. Processing using variations of a dose of alum 0.25 gr/l , 0.5 gr/l and 0.75 gr/l with a method of slow manual stirring 100rpm 10 minutes .The results of average the decline in levels of phosphate every variation namely dosage 67,03 %; 91,98 %; and 99,82 % .The statistics used is Shapiro-Wilk and One-Way Anova. Based on the analysis with the use of one-way anova in the treatment group and the control for levels of phosphate < 0.01, which means that there is variation doses influence alum to a decrease in levels of phosphate. Suggested in other researchers to conduct a similar study using koagulan other kinds for reprocessing with the methods of coagulation with other parameters such as BOD, COD or other metal

KEEFEKTIFAN DOSIS KOAGULAN POLY ALUMINIUM CHLORIDE (PAC) DALAM MENURUNKAN KADAR CHEMICAL OXYGEN DEMAND (COD) PADA AIR LIMBAH LAUNDRY

Chemical Oxygen Demand (COD) is one of the parameters contained in the laundry waste water. The higher levels of COD in water indicates that the water pollution is also higher. Waste water measurement results Pratama Laundry indicate COD concentration of 385.92 mg/l. This value exceeds the quality standards established. The purpose of this study was to determine the dose of PAC coagulant addition most effective way to reduce levels of COD in waste water facilities. This research was experiment with a pretest-posttest design with control group. The population in this study is the wastewater generated from the process of laundering activities Pratama Laundry produce waste water output of 200-210 liters/day and the sampling technique using a quota sampling. Statistical test using ANOVA test with the results of the analysis of data obtained p = 0.000 (p <0.01),Hareceivedmeansthatthere isthe effect of addinga coagulantPACin lowering levels ofCODinlaundry waste water. Obtainedthe highestdeclineof71.79% (108.87 mg/l) at a doseof 0.75g/l

Keefektifan Penambahan Koagulan Biji Asam Jawa (Tamarindus Indica) Untuk Menurunkan Kadar Total Suspended Solid (Tss) Pada Limbah Cair Tahu

Limbah cair tahu mengandung padatan tersuspensi tinggi, hasil pengukuran limbah cair tahu Dusun Teguhan Desa Sragen Wetan Kecamatan Sragen Kabupaten Sragen diketahui bahwa kadar Total Suspended Solid (TSS) sebesar 3.900 mg/l tidak memenuhi baku mutu. Salah satu cara menurunkan kadar TSS yaitu memanfaatkan biji asam jawa (Tamarindus indica) sebagai koagulan dalam pengolahan pertama limbah cair tahu. Tujuan penelitian ini untuk mengetahui dosis penambahan koagulan biji asam jawa yang paling efektif untuk menurunkan kadar TSS pada limbah cair tahu dengan variasi dosis 0 g (kontrol),1 g/l, 2 g/l, dan 3 g/l serbuk biji asam. Jenis penelitian ini adalah penelitian eksperimen dengan rancangan pretest-posttest with control group. Populasi penelitian ini 37 industri tahu dan teknik pengambilan sampel menggunakan purposive sampling. Uji statistik menggunakan uji One Way Anova dengan hasil analisis data diperoleh p=0,000 (< 0,01), sehingga disimpulkan bahwa ada dosis koagulan biji asam jawa yang paling efektif untuk menurunkan kadar TSS. Uji lanjut Post Hoc Test LSD 0,01 untuk mengetahui dosis koagulan yang paling efektif dengan hasil statistik mean difference 89.74359 artinya dosis 3 g/l memiliki nilai beda paling besar dibandingkan dosis penambahan koagulan biji asam jawa 2 g/l sehingga kadar TSS turun setelah diberi penambahan dosis 3 g/l sebesar 133 mg/l, namun belum memenuhi baku mutu

Keefektifan Metode Fitoremidiasi Menggunakan Tanaman Eceng Gondok Untuk Menurunkan Kadar Phosphate Limbah Rumah Sakit PKU Muhammadiyah Surakarta

Liquid waste containing phosphate substances can affect human health and the environment. Phosphate levels based on preliminary test results will be undertaken at the Hospital of PKU Muhammadiyah Surakarta of 11.544 mg / l, the results exceeded the water quality standard of waste. One way to do is to use the method fitoremidiasi with water hyacinth plants. The purpose of this study was to determine the effectiveness of the water hyacinth plant to reduce phosphate levels in PKU Muhammadiyah Hospital in Surakarta. This type of research study design true experiment with pretest and posttest with control group. Location of research at the Hospital of PKU Muhammadiyah Surakarta. Phytoremediation uses plants 4, 6 plants, and 8 plants hyacinth done for 7 days in 15 liters of waste water. Average yield - average effectiveness of phosphate levels after treatment are 94.513%, 97.976% and 99.901%. The statistical test used is the One Way Anova. The results of the study obtained plants water hyacinth effective to reduce the phosphate on the water waste debgab doses effective 8 plants (p-value 0,001). Advised on other researchers to conduct similar research using other types of aquatic plants for phosphate parameter

Perbedaan Efektivitas Filter Zeolit dan Karbon Aktif dalam Penurunan Kadar TSS (Total Suspended Solid) Limbah Cair Tahu Industri Rumah Tangga

Tingginya kadar TSS dapat menyebabkan pencemaran lingkungan. Kadar TSS limbah cair tahu di Dukuh Kanoman sudah melebihi standar, yaitu 900 mg/l. Tujuan penelitian ini adalah untuk mengetahui perbedaan tingkat efektivitas media zeolit dan karbon aktif dalam menurunkan kadar TSS limbah cair tahu. Metode penelitian ini adalah eksperimen dengan rancangan penelitian pretest-postest dengan kelompok kontrol. Populasi dalam penelitian ini adalah seluruh industri tahu yang tidak mempunyai pengolahan limbah yang berada di dukuh kanoman yang berjumlah 12 industri. Jumlah sampel yang digunakan sebanyak 50 liter, masing-masing perlakuan membutuhkan 5 liter limbah dengan 3 kali pengulangan. Uji statistik menggunakan uji t-tes Independent yang menunjukkan ada perbedaan rata-rata antara nilai sebelum proses filtrasi dengan setelah proses filtrasi menggunakan media zeolit dan karbon aktif dalam menurunkan kadar TSS. Hasil uji laboraturium pada kontrol, rata-rata kadar TSS sebesar 833 mg/l. Perlakuan dengan media zeolit rata-rata kadar TSS sebesar 233 mg/l, perlakuan dengan media karbon aktif rata-rata kadar TSS sebesar 366 mg/l. Penurunan kadar TSS belum memenuhi standart baku mutu yang telah ditentukan oleh Perda Provinsi Jawa Tengah Nomer 5 tahun 2012 dengan kadar maksimal 100 mg/l

Perbedaan Tekanan Darah dan Kelelahan Kerja pada Tenaga Kerja Terpapar Panas di atas dan di bawah NAB di PT Aneka Adhilogam Karya Ceper Klaten

Workers in hot environments such as foundries around, boilers, ovens, heaters, furnaces can experience hot pressure had an impact on both the hazards of interference directly and indirectly for the safety and occupational health. The work climate is too hot to have the impact of increasing stress, dehydration gives rise, increased blood pressure, increased pulse rate, hypertension, reduced brain work due to lack of oxygen intake and decreased response of the skin. Sampling with exhaustive sampling that is 36 on the casting and finishing on the 18th. Data analysis using the test Man Whitney to siginifkan level of 0.05. Research results: the results of the measurements the blood pressure on a group of casting (> NAB), with the results before working an average of 130,36/83,33 mmHg with the normal requirements. The results of measurements of blood pressure after working an average of 137,22/87,56 mmHg with categories pre hypertension. The results of the measurement of the blood pressure in the finishing Group (≤ NAB), with the results before working an average of 130,56/108 mmHg with categories pre hypertension. The results of measurements of blood pressure after working an average of 130,83/108 mmHg with categories pre hypertension. Results measurement work group fatigue casting (> NAB), with the results before working an average of 20.55 fatigue work with categories. The results of the measurement of fatigue after working an average of fatingue work with categories 30.83 medium. Results measurement work group fatigue finishing (≤ NAB), with the results before the average work with categories work fatigue 20.72 low. The results of the measurement of fatigue after working with 20.89 average category work fatigue. The results of the data analysis: 1) there is a significant difference in blood pressure after exposure to heat over and under the NAB PT. Aneka Adhilogam Paper Ceper and Klaten (p 0.003 ≤ 0.05). 2) no difference significant levels of fatigue after work exposed to heat above and below the NAB PT. Aneka Adhilogam Paper Ceper and Klaten (p 0.000 ≤ 0.05

HUBUNGAN ANTARA PENGETAHUAN DAN SIKAP DENGAN PENGGUNAAN ALAT PELINDUNG DIRI (APD) PADA PEKERJA DI UNIT KERJA PRODUKSI PENGECORAN LOGAM

Personal protective equipment is a set of tools used to protect the safety of the whole or in part of the body from the potential danger of accidents and occupational diseases. The use of appropriate personal protective equipment can reduce the rate of accidents. The purpose of this study was to determine the relationship between knowledge and attitudes to the use of Personal Protective Equipment (PPE) for workers at a metal foundry production unit. This research uses Analytical observational method with cross sectional approach. The research was conducted at CV. Manunggal Steel Prosperous Hamlet Batur Village Tegalrejo Ceper District of Klaten regency. The population in this study, workers in metal casting production unit. The sample in this study as many as 40 people. The sampling using Total Sampling technique while using the techniques of statistical test Chi Square test. The results showed the respondents knowledge is not good (52.5%) and negative attitude of the respondents (55.0%). Statistical analysis showed that there is a relationship between knowledge (p= 0.002) and attitude (p= 0.005) with the use of personal protective equipment for workers at a metal foundry production unit

Hubungan Antara Kebisingan Dan Beban Kerja Dengan Stres Kerja Pada Pekerja Unit Perbaikan Di Pt. Kai Daop VI Yogyakarta Dipo Solo Balapan

There are factors that affect the working environment such as physical factors, and the effect on health and safety in the workplace. The work environment is one of the main sources of potential occupational health hazards. One of the factors in the work environment is noise. Noise can have an impact, one of which can cause stress to a person exposed to noise. The purpose of this study was to determine the relationship between noise, age, length of employment, length of employment, and workload with work stress on workers' Service section VI DAOP PT KAI Yogyakarta DIPO Solo Racing. The sampling technique was purposive sampling method and using predetermined criteria to obtain a sample of 48 respondents. Instruments in this study was the measurement of the noise level by using a sound level meter and questionnaires noise, the stress of work, duration of work, tenure, and workload. Data analysis was performed using univariate and bivariate using Pearson's chi-square. The results showed a significant relationship between noise with work stress ((2 = 9.872; (= 0.002), age and job stress ((2 = 7.378; (= 0.002), length of employment with job stress ((2 = 16.061; ( = 0.000), duration of employment with job stress ((2 = 13.428; (= 0.000), and workload with job stress ((2 = 16.092; (= 0.000). Suggestions for the company is the quality control of the work to the employee by way of guidance periodically, giving insenftif, refreshing, and outbound order to reduce work stress

Hubungan Antara Frekuensi Dan Lama Penyemprotan Dan Interval Kontak Pestisida Dengan Aktivitas Cholinesterase Petani Di Desa Kembangkuning Kecamatan Cepogo

Pesticides are one of the substances that are highly neurotoxic. Pesticide poisoning to the body in the form of declined in cholinesterase activity in the blood. Cholinesterase examinated can be done by checking blood cholinesterase activity. The aims of this study was to determine the relationship between frequency of spraying, spraying duration and interval of contact pesticides with blood cholinesterase activity on farmers in the Banjarejo sub-district Kembangkuning Cepogo. This researched using cross sectional study design with a number of respondents as many as 37 farmers. Variables studied include blood cholinesterase activity of respondents, frequency of spraying, spraying long time, and an interval of contact pesticides. The research located in the village of Kembangkuning, District Cepogo, Boyolali. The statistical test used was Spearman Rank. Based on the results of bivariate the study, showed that the variables which provide results is: The frequency of spraying (p-value 0.042; rs 0.287), spraying duration (p-value 0.000; rs 0.600), and an interval of contact pesticides (p-value 0.043; rs 0,285 ). The conclusion of this research is a factor long enough pesticide spraying and interval of contact pesticides has linked strong with the incidence of blood cholinesterase activity declining farmer in the Banjarejo village of Kembangkuning Cepogo District of Boyolali