KAJIAN “SEWAGE SYSTEM” PADA HOTEL CITRA DAGEN YOGYAKARTA

Hotel Citra Dagen Yogyakarta yang terletak di daerah obyek wisata Malioboro dan pemukiman padat, tentunya harus menggunakan system pembuangan air limbah yang memenuhi syarat dari kebutuhan hotel. Evaluasi sewage system pada bangunan ini bertujuan untuk mengetahui sistem apa yang digunakan pada pembuangan air limbah hotel, besaran komponen dan kapasitas pada bagian perlengkapan sanitair. Analisis sewage system ini mempunyai beberapa tahapan, yaitu pengumpulan data berupa data gambar, dan interview lapangan. Analisis ini berdasarkan standar perencanaan yang terkait pada limbah sistem. Hasil analisis sistem pembuangan diperoleh sistem pembuangan air limbah menggunakan sistem instalasi pengolahan dua pipa. Hasil analisis untuk pipa tegak limbah air kotor diperoleh hasil pipa terbesar 2” pada kebutuhan 720 liter/menit, dan pipa tegak pada lapangan 4” untuk kebutuhan 15000 liter/menit. Jadi untuk pipa tegak air kotor yang digunakan sudah aman dan memenuhi kebutuhan. Pada hasil analisis pipa tegak air limbah diperoleh hasil pipa terbesar 2½” pada kebutuhan 990 liter/menit, dan pipa tegak air limbah pada lapangan digunakan 3” untuk kebutuhan 1800 liter/menit. Jadi untuk pipa tegak air limbah yang digunakan sudah aman dan memenuhi kebutuhan. Pada, hasil analisis pipa drainase tegak, pipa terbesar diperoleh 4” untuk kebutuhan 15000 liter/menit. Sedangkan pada pipa di lapangan di gunakan pipa 4” untuk kebutuhn 15000 liter/menit. Jadi untuk kebutuhan pipa tegak drainase sudah aman dan memenuhi kebutuhan. Dari hasil analisis perhitungan, menunjukkan bahwa pipa tegak limbah air kotor, pipa tegak limbah air bekas, dan pipa drainase tegak pada Hotel Citra Dagen Yogyakarta sudah memenuhi kebutuhan dalam daya buang air limbah yang terjadi

ELEKTRODEKOLORISASI LIMBAH CAIR INDUSTRI KAIN TENUN MENGGUNAKAN ELEKTRODA PbO2/Pb

Telah dilakukan penelitian tentang elektrodekolorisasi limbah cair industri kain tenun dengan elektroda Pb02/Pb. Penelitian dilakukan dengan mengelektrolisis sampel limbah cair industri kain tenun pada potensial 5,0 volt. Media elektrolisis zat warna adalah air limbah industri kain tenun sedangkan elektroda yang digunakan adalah PbO2-Pb serta pengaturan waktu elektrolisis selama 90 menit. Hasil akhir elektrolisis dianalisis secara kualitatif dan kuantitatif dengan Spektrometer UV-Vis dan analisis produk terhadap nilai total dissolved solid (TDS) dan kekeruhan. Hasil yang diperoleh menunjukkan elektrolisis air limbah industri kain tenun menggunakan elektroda PbO2-Pb menghasilkan dekolorisasi sebesar 98,8%, penurunan nilai total dissolved solid (TDS) sebesar 96,05% dan kekeruhan sebesar 99,90

PERBEDAAN EFEKTIFITAS KARBON AKTIF TEMPURUNG KELAPA DAN ARANG KAYU DALAM MENURUNKAN TINGKAT KEKERUHAN PADA PROSES FILTRASI PENGOLAHAN LIMBAH CAIR INDUSTRI TAHU

Pengolahan limbah cair merupakan upaya untuk mencegah terjadinya pencemaran lingkungan. Salah satu bentuk pencemaran lingkungan adalah tingginya tingkat kekeruhan, khususnya limbah cair industri tahu. Sesuai dengan PP No. 20 tahun 1990 dan PERMENKES RI No. 416 tahun 1990 nilai maksimal untuk tingkat kekeruhan adalah 25 NTU (500 mg/L). Untuk itu perlu dilakukan pengolahan limbah cair antara lain dengan filtrasi menggunakan karbon aktif. Hasil pemeriksaan tingkat kekeruhan limbah cair industri tahu adalah sebesar 518,5 mg/L. Tujuan dari penelitian ini adalah mengetahui perbedaan efektifitas karbon aktif tempurung kelapa dan karbon aktif kayu dalam menurunkan tingkat kekeruhan pada proses filtrasi pengolahan limbah cair industri tahu. Penelitian ini adalah penelitian eksperimen, dengan populasi penelitian, seluruh limbah cair yang dihasilkan dalam seluruh proses produksi. Sampel penelitian , 30 L limbah cair industri tahu yang diambil di outlet dengan metode grab sampling. Untuk mengetahui perbedaan efektifitas karbon aktif kayu dan tempurung kelapa dalam menurunkan tingkat kekeruhan limbah cair industri tahu maka digunakan uji statistik one way anova dan uji Least Significant Difference. Tingkat kekeruhan sampel yang difiltrasi dengan karbon aktif tempurung kelapa turun menjadi rata-rata 76,4mg/L, sedang sampel yang difiltrasi dengan karbon aktif kayu dan tempurung kelapa turun menjadi 42,07 mg/L. Berdasarkan hasil uji statistik didapat F sebesar 20649,49 dengan derajat kebebasan 3 dan 20, diperoleh signifikasi 0,001. Nilai ini lebih kecil dari alfa = 0,05 berarti ada perbedaan efektifitas karbon aktif tempurung kelapa dan karbon aktif kayu serta campuran karbon aktif kayu dan tempurung kelapa dalam menurunkan tingkat kekeruhan limbah cair industri tahu. Hasil uji LSD dengan membandingkan berbagai kelompok perlakuan didapatkan nilai signifikasi 0,001 yang berarti bahwa semua kelompok perlakuan efektif dalam menurunkan tingkat kekeruhan limbah cair industri tahu. Namun berdasarkan analisis biaya ekonomi didapatkan bahwa karbon aktif kayu paling baik untuk digunakan. Kata Kunci: Karbon aktif kayu, karbon aktif tempurung kelapa, tingkat kekeruhan,limbah cair industri tahu THE DIFFERENCE OF EFFECTIVITY BETWEEN COCONUT SHELL ACTIVE CARBON IN REDUCING TURBIDITY OF WASTE WATER FILTRATION PROCESS IN INDUSTRY Waste water treatmen is an effort to prevent environmental polution. One of environmental polution is the higher of turbidity rate caused by soyabeen industry. According to PP number 20, 1990 and PERMENKES 416, 1990 the maximum value for turbidity rate is 25 NTU (500 mg/L). Therefore it is necessary to process waste water, one of the process is active carbon filtration. According to this research to determine the difference of effectivity between coconut shell active carbon and wood carbon in reducing turbidity of waste water filtration process in tofu industry. Research design was the randomized control group pretest-postest. The population of this research were the tofu industry waste water and using grab sampling method, sample of this research is 30 L of soyabeen waste water that taken from outlet. the data was analyzed by SPSS 10,0 for windows with the one way anova test and least significant difference test to determine the difference of effectivity between coconut shell active carbon and wood carbon in reducing turbidity of waste water filtration process in tofu industry. The turbidity rate of tofu waste water is filtered with coconut shell active carbon decrease to 76,4 mg/L, and sample is filtered with wood active carbon decrease to 121,7 mg/L, and sample is filtered with the mixed of wood active carbon and coconut shell decrease to 42,07 mg/L. The result of statistic test, the F ratio is 20649,49 and of value are 3 and 20, with the significant value is 0,001. From that result, there were significant different between wood active carbon and coconut shell active carbon to decrease turbidity rate at the filtration process in waste water treatment of soyabeen industrial. The result of Least Significant Difference test, the significant value is 0,001. and that means all the treatment groups are effective to reducing turbidity rate of tofu industry waste water. But according to Economic cost analyze, we found that wood active carbon is better than other treatment. Keyword : Wood active carbon, Coconut shell active carbon, Turbidity rate, tofu industry waste wate

EFEKTIVITAS DOSIS KAPORIT DALAM MENURUNKAN KADAR AMONIAK LIMBAH CAIR RSUP Dr. SARDJITO YOGYAKARTA

Amoniak adalah senyawa yang terbentuk dari oksidasi bahan organik yang mengandung bahan nitrogen dalam air limbah dengan bantuan bakteri. Adanya amoniak dalam effluent air limbah dapat menjadi indikasi adanya pencemaran senyawa organik yang mengandung nitrogen dalam buangan limbah cair yang berarti terjadi gangguan proses dalam pengolahan air limbah. kadar amoniak dapat diturunkan melalui pengolahan limbah secara kimiawi yaitu dengan oksidasi menggunakan kaporit. Amoniak bereaksi dengan kaporit dan membentuk monokloramin, dikloramin atau trikloramin. Tujuan dari penelitian ini adalah untuk mengetahui kemampuan kaporit dalam menurunkan kadar amoniak limbah cair RSUP Dr. Sardjito Yogyakarta. Variabel bebas penelitian ini adalah beberapa dosis kaporit dan variabel terikat adalah kadar amoniak. Jenis penelitian ini adalah eksperimen murni. Populasi yang digunakan adalah air limbah yang berada di kolam indikator Instalasi Pengolahan Air Limbah RSUP Dr. Sardjito Yogyakarta. Sampel dalam penelitian ini adalah air limbah rumah sakit yang diambil di bak penampungan akhir sebelum klorinasi IPAL. Test Homogenity of Variances didapatkan bahwa nilai levene test 1,623 dengan nilai p = 0,220, karena nilai p > 0,05 maka kelima varian adalah sama. Uji statistik yang digunakan adalah anova. Hasil uji statistik one way pada tes anova didapatkan bahwa F hitung adalah 596,146 dengan nilai p = 0,000. Karena nilai p < 0,05 maka Ho ditolak berarti rata-rata penurunan kadar amoniak dari kelima variasi dosis tersebut memang berbeda nyata. Dengan dosis paling efektif 7,5 ml/l yang mampu menurunkan kadar amoniak sebesar 95,727%. Dosis optimum adalah 5,18 ml/l. Disarankan agar pembubuhan kaporit dilakukan pada bak indikator terakhir sebelum memasuki outlet agar dapat membantu menurunkan kadar amoniak dan sebagai desinfektan. Kata Kunci: amoniak, kaporit, oksidasi THE EFFECTIVENESS OF CHLOR DOSAGE FOR DECREASING AMMONIA AT Dr. SARDJITO THE CENTER PUBLIC HOSPITAL, YOGYAKARTA Ammonia is compound resulted by the oxidation process of organic substances containing nitrogen in wastewater facilitated by bacteria. The existence of ammonia in wastewater effluent indicates the occurance of organic substance pollution containing nitrogen in liquid waste. A methode which maybe applied in reducing the contain of ammonia is chemical treatment by using chlor. Ammonia will react to chlor or hypochloric acid and form the monochloramine, dichloramine or trichloramine. The aim of this research was to explore the ability of chlor as the oxidize in reducing the contain of ammonia on liquid waste of Dr. Sardjito The Center Public Hospital Yogyakarta. The independent variables were variety dosage of chlor and dependent variable was the ammonia levels. This research was clasified to true experimental research. The population this research was wastewater in indicator basin at installation of wastewater treatment. Based on the result of homogenity test of variances was obtained that the levene of count test 1,623 with p value = 0,220, for the p value >0,05, then the five variances were the same. Anova was used as the statistical test. The result of one way statistical test of anova shows F count 596,146 with p value = 0,000 For the p value <0,05 then Ho is refused, or the reduction mean of those five variances dosage is obviously diffrent. The most effective dosage was 7,5ml/l (95,727%). The optimum dosage was 5,18ml/l. It was advised that the adding of the chlor should be conducted on the last indicator basin before outlet, in order to facilitate the reduction of ammonia and desinfectant Keyword ; ammonia, chlor, oxidatio

By Product Exchange of Seaweed Solid Waste for Mushrooms Media

A laboratory experiment on utilization of seaweed-containing solid wastes as media for growing mushrooms was conducted by researchers from the Institute for Environmental Technology. The solid wastes were obtained from PT. Agarindo Bogatama, a food industry which produces jelly powder processed from seaweed of Gracilaria. The company generates 60 tones of solid wastes of seaweed per-day that contained 70% of water content. The solid media was used to grow Auricularia polytricha, Pleurotus astreatus, and Ganoderma lucidum. Some mixed media were prepared with the percentage ratio of sawdust to solid waste as 0, 25, 50, 75, and 100. After sterilizationthe media were planted with mushrooms and then were kept in incubator. After 28-day the basidiomas of G. lucidum was developed while P. astreatus appeared after 36-day of incubation. Both were grown on 100% seaweed media (using 100% sawdust media as a control). This very early results indicated that solid waste of seaweeds have an additional value which can be used as media for mushrooms plantation. Implementation waste to product as a part of cleaner production approach should be disseminated to the industries, especially SMEs like PT. Agarindo Bogatama, who areconcern to the environment

Modul pengembangan keprofesian berkelanjutan mata pelajaran biologi bidang keahlian agribisnis dan agroteknologi SMK kelompok kompetensi H: pencemaran dan pengelolaan limbah.

Modul ini membahas secara rinci tentang pencemaran, limbah, penanganan dan pengolahan limbah cair, penanganan dan pengolahan limbah padat, penanganan dan pengolahan limbah gas, penanganan dan pengolahan limbah , dan aplikasi pengolahan limbah ramah lingkungan

Body weight and statistic vital of Texel sheep in Wonosobo District by giving the ramie hay as an additional woof

Abstract. Kuntjoro A, Sutarno, Astirin OP. 2009. Body weight and statistic vital of Texel sheep in Wonosobo District by giving the ramie hay as an additional woof. Nusantara Bioscience 1: 23-30. This research is aimed to observe the body weight and statistic vital measurement of 50 Texel sheep. Sheep are classified into five treatments of giving woof P0 (giving tree greenish woof without concentrate), P1 (giving greenish woof and concentrate without adding the ramie hay/0%) concentrate), P2 (giving greenish woof and concentrate by adding 10%) ramie hay), P3 (giving greenish woof and concentrate by adding 20%) ramie hay), P4 (giving greenish woof and concentrate by adding 30%) ramie hay), every treatment was repeated 10 times. The result shows that even it can’t yet replace the concentrate function, but adding ramie hay as much as 10%), 20%) and 30%) on sheep woof can increase the body weight’s growth respectively 186.67 g/day, 153.34 g/day dan 103.34 g/day. The addition of ramie hay 10%), 20%) and 30%) can increase the addition of statistic vital’s measurement on breast of sheep livestock 1.20 cm); 0.95 cm) and 0.90 cm); the addition of statistic vital measurement on the body length of sheep livestock 0.05 cm); 1.00 cm) and 0.75 cm) and also the addition of breast width is 1.50 cm); 0.15 cm) and 0.3 cm). Meanwhile the addition of ramie hay on livestock woof can only increase the addition of statistic vital mesurement on breast at giving 30%) as big as 0.15 cm). It is needed to know further on giving ramie hay by concentration comparasion of hay of different leaf and stem

PENYELESAIAN PERCERAIAN MELALUI PUTUSAN VERSTEK DALAM PERKARA No. 194/Pdt.G/2023/PA.Kab.Mlg

The main task of every husband and wife is to fulfill each other to improve their personality, to achieve prosperity both from the material and spiritual side. However, in reality, people who marry sometimes do not find the happiness and harmony that every couple hopes for. Various arguments and differences of opinion between partners cause disputes. When there are endless arguments in the household, so that harmony is no longer felt, it can become a burden to maintain a marriage. This research was conducted to determine the implementation of the settlement of divorce case No. 194/Pdt. G/2023/PA.Kab.Mlg which was completed by default (verstek). The author conducted research using empirical juridical methods which are known as research that goes directly into the field by deepening the existing legal regulations in Indonesia which are what actually occur in the social order of life. In the process of resolving this case, it can be said that there is a trial that is quite unique when compared to the process of resolving talak divorce cases in general. In general, we can see that there are several series of trial agendas with different trial objectives in each agenda, such as a separate initial trial, a separate evidentiary trial, or a separate conclusion trial. However, what happened in the process of resolving the divorce divorce case with number No. 194/Pdt. G/2023/PA.Kab.Mlg means that all trial agendas are combined into one trial agenda, namely at the initial trial. In this case, it was certain from the start that the respondent would not attend or at least care about this case. This is due to the current situation and condition of the Respondent, where the Respondent has (knowingly and intentionally) abandoned the Applicant and the children resulting from the marriage of the Applicant and Respondent in order to be with the Respondent's mistress, and the whereabouts of the Respondent are unknown even to the Respondent's own family. Therefore, indirectly, the default decision will definitely be the decision that ends the process of resolving this divorce divorce case. According to the author, there are still things that can be further harmonized between several points of related legal rules (for example, such as for divorce and divorce cases), considering the differences in the rules regulated in Indonesian law and religious law itself

Performance of Ceriporiopsis SP. in the Treatment of Black Liquor Wastewater

High amounts of black liquor wastewater are generated from bioethanol production by using oil palm empty fruit bunches. It contains an alkaline solution (NaOH), so it is quite toxic for aquatic ecosystems if discharged directly into waters. Black liquor has been treated by coagulation method, and it still needs additional treatment. This study aimed to determine degradation of black liquor wastewater by selected white-rot fungi (WRF). Five different strains of WRF have been tested for their ability to decolorize black liquor on agar and liquid media. Out of five fungi studied, two fungi, Ceriporiopsis sp. and Phanerochaete chrysosporium, showed the capacity to grow more than 50% on agar medium. In liquid medium, the percentage of decolorization of 15,000 ppm coagulated and diluted black liquor ranged from 70 to 89% at 30 days depending on the fungal strain. Ceriporiopsis sp. showed the better ability to decolorize black liquor than P. chrysosporium. The performance of Ceriporiopsis sp was evaluated regarding decolorization of black liquor, chemical oxygen demand (COD), and mycelial dry weight both in coagulated black liquor and original black liquor. The color of original and coagulated black liquor can be decolorized up to 90.13 and 86.85%, respectively. COD in original and coagulated black liquor was reduced up to 70.17 and 40.09%, respectively. The presence of coagulant Poly Aluminum Chloride (PAC) inhibited degradation of black liquor by fungus. The result demonstrated that Ceriporiopsis sp has a potential alternative to treat black liquor wastewater