9 research outputs found
PENGARUH VARIASI WAKTU TINGGAL FITOREMEDIASI TANAMAN KAYU APU (Pistia stratiotes) TERHADAP PENURUNAN KADAR COD LIMBAH CAIR DI HOME INDUSTRI TAHU KELURAHAN KALIKABONG KECAMATAN KALIMANAH KABUPATEN PURBALINGGA TAHUN 2020
Limbah cair yang dikeluarkan oleh industry tahu berpotensi menjadi masalah bagi lingkungan sekitarnya. Penelitian ini bertujuan untuk menganalisis pengaruh variasi waktu tinggal fitoremediasi menggunakan tanaman kayu apu (Pistia stratiotes) dalam menurunkan kadar COD limbah cair tahu Kalikabong. Jenis penelitian ini adalah pre-experiment dengan metode pre and post design. Hasil uji anova one way menunjukan nilai p sebesar 0,007 yang berarti nilai p 0,05, artinya terdapat perbedaan nilai efisiensi penggunaan tanaman kayu apu (Pistia stratiotes) dengan variasi waktu tinggal dalam menurunkan kadar COD limbah cair tahu secara signfikan. Simpulan dari penelitian ini bahwa penambahan tanaman kayu apu (Pistia stratiotes) dapat menurunkan COD limbah cair home industri tahu dengan variasi waktu tinggal
EFISIENSI RANCANG BANGUN ALAT PENGOLAHAN LIMBAH CAIR DALAM MENURUNKAN KANDUNGAN BOD, TSS, MINYAK DAN LEMAK
Limbah domestik merupakan air buangan yang berasal dari aktivitas rumah tangga seperti memasak, mencuci, mandi, dan kakus. Banyaknya pencemaran badan air yang disebabkan oleh aktivitas tersebut dapat menurunkan kualitas air bersih. Penelitian ini bertujuan untuk mengurangi pencemaran air pada air limbah kantin menggunakkan alat pengolahan limbah cair yang dapat menurunkan kadar BOD, TSS, minyak dan lemak.Eksperimen ini menggunakan alat pengolahan limbah cair bentuk prototype. Pengolahan gabungan secara fisik menggunakan karbon aktif, grease trap dengan micro screen, dan secara biologi menggunakan biofilter (bioball). Pengoperasian alat menggunakan debit 53 ml/ menit (bak pertama menuju bak kedua). Sampel dalam penelitian ini yaitu air limbah kantin. Analisis data menggunakan uji pair t test dengan desain penelitian yaitu pre test – post test.Hasil penelitian rata – rata penurunan kadar BOD, TSS, minyak dan lemak setelah pengolahan yaitu 241,544 mg/ lt, 435,33 mg/ lt, dan 10,43 mg/ lt. Uji pair t test menunjukkan nilai p = 0,016 berarti p 0,05 maka ada perbedaan sebelum dan sesudah pengolahan. Hasil analisis efisiensi rata – rata kadar BOD, TSS, minyak dan lemak yaitu 89,07%, 89,91%, dan 84,82%.Berdasarkan hasil penelitian disimpulkan bahwa ada perbedaan sebelum dan sesudah pengolahan dengan menggunakan alat pengolahan limbah cair dalam menurunkan kandungan BOD, TSS, minyak dan lemak. Peningkatan efisiensi alat dapat dilakukan dengan penambahan pre treatment dan atau penambahan treatment
Penurunan kadar besi air sumur gali melalui saringan pasir aktif sistem up flow dan konvensional
STUDI PENGOLAHAN AIR LIMBAH TAPIOKA DI PABRIK ACI
Tapioka merupakan salah satu sumber bahan makanan yang berasal dari pati singkong. Proses pembuatan tapioka menghasilkan air limbah yang berpotensi menjadi masalah bagi lingkungan sekitar. Oleh karena pada umumnya industri tapioka mengalirkan langsung air limbahnya ke selokan atau sungai, sehingga berpotensi mencemari lingkungan. Tujuan dari penelitian ini adalah untuk mendeskripsikan pengolahan air limbah tapioka di Pabrik Aci Wanakusumah. Penelitian ini dilakukan dengan metode deskriptif observasional, dengan memberikan gambaran tentang pengolahan air limbah tapioka di Pabrik Aci Wanakusumah Kelurahan Timbang Kecamatan Kejobong Kabupaten Purbalingga. Hasil penelitian menunjukkan bahwa Pabrik Aci Wanakusumah mengalirkan air limbahnya ke sungai Pekacangan, air limbah hanya melewati bak pengendap tanpa pengolahan lebih lanjut seperti IPAL sehingga mencemari air sungai. Hasil pemeriksaan menunjukkan air limbah tapioka pada inlet bak pengendap kadar BOD 1.221 mg/L, debit 0,0075 m3/detik. Pada outlet bak pengendap kadar BOD 1.071 mg/L, debit 0,004 m3/detik. Hasil pemeriksaan kadar BOD badan air sungai Pekacangan sebelum tercampur air limbah tapioka 4,6 mg/L, sedangkan kadar BOD setelah tercampur air limbah tapioka 11 mg/L dengan debit sungai 34,8612 m3/detik. Penelitian menyimpulkan air limbah tapioka yang dihasilkan oleh Pabrik Aci Wanakusumah yang dibuang ke sungai Pekacangan dengan kadar BOD yang melebihi kadar maksimal parameter BOD yang diatur dalam Peaturan Daerah Provinsi Jawa Tengah Tahun 2012 tentang Baku Mutu Air Limbah
The Use of mono cylinder in decreasing level of dust
This research is quacy experiment with 2 factorial design used Random Complete Block Design, which made only limited where each treatments has the same intensity or dose. The number of samples is 108 samples. Data analysis using One Way Anova and LSD. It can be concluded that mono cylinder 100 cm high can reduce dust levels on average 56.21%, mono cylinder 75 cm average 35.41% and mono-cylinder 50 cm average 33.53%. Structure ARSPSE (Active Charcoal-Spon-Coconut fibers) can reduce levels of dust for average - 46.51%. One Way ANOVA test showed there were significant differences reduction in dust levels with varying heights mono cylinder (sig 0.015 <0.05). The resut suggested that the perpetrators of domestic industries using flue mono-cylinder combustion process and for further research can be modified tools ,materials and used water resirculation system as well as gas and to decrease air pollutants such as SOx, HC
SCOURING-RUSH HORSETAIL’S (Equisetum hyemale) CAPABILITY TO REDUCE DETERGENT, COD AND PHOSPHAT (PO4) LEVELS OF LAUNDRY WASTEWATERIN PURWOKERTO IN 2016
Background: There will be an increasing demand for goods and services as a result of rapid economic growth and development, increasing activities in the society, and also with the establishment of universities. This has caused the emergence of some laundry business that aims to alleviate the burden on society. The emergence of the laundry business may cause environmentalpollution, especially in the levels of detergent, if the waste generated is not treated before it is discharged. Therefore, it is necessary to find a method to treat waste efficiently. One of the ways is to employ phytoremediation using scouring-rush horsetail (Equisetum hyemale).
Aims: The purpose of this study is to analyze the scouring-rush horsetail media’s ability in decreasing the levels of detergent, Phosphate (PO4), and COD of laundry waste.
Methods: This type of research is called true experiment with design randomized control group pretest-posttest. The data is analyzed using Analysis of Covariance (ANCOVA) statistical test.
Results: The results of the analysis showed that there are influences from the residence time, the scouring-rush horsetail’s (Equisetum hyemale) ability and the continuous process by reducing the levels of detergent (88.9%), COD (99.5%), and PO 4 (63.4%). Scouring-rush horsetail media has an average efficiency of COD reduction (90%), PO 4 (51%), and Detergents (86%). The value of Detergents, COD, and PO4 level in laundry wastewater after treatment by using scouring-rush horsetail (Equisetum hyemale) with a residence time (0 day, 1 day, 3 days and 7 days) based on Government Regulation No. 82 of 2001 on the Management of Water Quality and Water Pollution Control has been under NAB.
Conclusion: It is necessary to make additional acclimatization time in the study using a scouringrush horsetail to reduce the levels of COD, phosphate and detergent. It is advisable to plant the scouring-rush horsetail in the tub as high as 30 cm, thus the water can be pooled.
 
The Use of ion Plasmaclsuter in Decreasing level of Fe in Clean Water
The purpose of this research describe the difference of decreasing level of Fe between the well water before and after ionized. This type of research is pre-experimental, with design and pre-test post-test group design. The well water is collected in drum of 200 liter and given a cover. With the pump, water sprayed through a nozzle in a basin of aeration (control). The treatment group, using plasmacluster ion generator. Each replication three times. Data Analysis with One Sample Test and ANOVA. The measurement result for the Fe content of the one nozzle control the average 0.617 mg / l, two nozzle 0.640 mg / l, three nozzle 0.639 mg / l and four nozzle 0.635 mg / l. Treatment group (ionization plasmacluster), the one nozzle average 0.571 mg / l, two nozzle 0.581 mg / l, three nozzle 0.573 mg / l and four nozzle 0.587 mg / l. Analized test with One Sample Test showed the significant difference (0.000 and 0.001 <0.05) with plasmacluster use of ionization in decreased levels of iron (Fe) and just well water with using aeration. That were significant difference before (0.000) and after (0.001) uses plasmacluster ion in decreasing level of Fe well water (<0.05). The recomendation researcher measured levels of early oxygen, the color before and after the ionization process
The Use of Mono Cylinder in Decreasing Level of Dust
This research is quacy experiment with 2 factorial design used Random Complete Block Design, which made only limited where each treatments has the same intensity or dose. The number of samples is 108 samples. Data analysis using One Way Anova and LSD. It can be concluded that mono cylinder 100 cm high can reduce dust levels on average 56.21%, mono cylinder 75 cm average 35.41% and mono-cylinder 50 cm average 33.53%. Structure ARSPSE (Active Charcoal-Spon-Coconut fibers) can reduce levels of dust for average - 46.51%. One Way ANOVA test showed there were significant differences reduction in dust levels with varying heights mono cylinder (sig 0.015 <0.05). The resut suggested that the perpetrators of domestic industries using flue mono-cylinder combustion process and for further research can be modified tools ,materials and used water resirculation system as well as gas and to decrease air pollutants such as SOx, HC