Pengaruh Penambahan Limbah Sayuran Terhadap Kandungan C-organik Dan Nitrogen Total Dalam Vermikomposting Limbah Rumen Dari Sapi Rumah Potong Hewan (Rph)

Limbah isi rumen dari rumah potong hewan (RPH) yang belum terkelola secara optimal memungkinkan menimbulkan masalah bagi lingkungan. Salah satu alternatif pengolahan limbah isi rumen adalah dengan metode vermikomposting. Upaya yang dilakukan untuk menambah selera makan cacing tanah adalah dengan menambahkan limbah sayuran pada pengolahan limbah isi rumen. Penelitian ini menggunakan variansi penambahan limbah sayuran sebesar 0%, 25%, 50%, 75%, dan 100% dari berat limbah isi rumen. Penambahan limbah sayuran pada penelitian ini pada kondisi awal mampu meningkatkan kandungan C-Organik dan N-Total. Akan tetapi, penambahan tersebut justru menurunkan rasio C/N. Selama proses vermikomposting terjadi degradasi C-Organik sebesar 69,71% dan degradasi N-Total sebesar 52,16%. Produk yang dihasilkan dari proses vermikomposting disebut kascing dan cacing tanah. Pada saat kascing dipindahkan dari reaktor vermikomposting, proses degradasi C-Organik, N-Total, dan rasio C/N masih berlangsung. Kandungan kascing mulai stabil pada hari kesembilan dari kascing dipindakan dar reaktor vermikomposting. Kualitas kascing yang dihasilkan masih belum memenuhi atau memiliki nilai yang lebih rendah jika dibandingkan dengan kriteria kompos yang tercantum pada SNI 19-7030-2004 maupun dibandingkan dengan kulitas kompos lainnya

Studi Penentuan Kualitas Air Sungai Babon Dengan Metode National Sanitation Foundation – Indeks Kualitas Air (Nsf-ika)

Babon River having a large area and important role for ecosystem directness in Central Java. This research aim is to knowing the influence of landuse about water quality of Babon River. Babon watershed landuse are residential, agriculture and industrial which can influence the quality of Babon River. Babon River water quality determination method by Water Quality Index - National Sanitation Foundation (WQI-NSF). This method consist of 9 parameter which are physics, Chemistry and biology. The result showing that Babon River into middle category. Dominant contaminating in Babon River are Fecal Coliform, BOD and turbidity caused by domestic waste, industrial waste and agriculture waste. To reduce the pollutant is provision for resident around the septic tank, reduce the using of fetilizer and community participation in maintaining the water quality of Babon River

Perancangan Detail Peningkatan Kinerja Tpst 3r Bojongbata Kecamatan Pemalang dengan Material Recovery Facility (Mrf)

Meningkatnya jumlah penduduk dan semakin beragamnya aktivitas penduduk Kabupaten Pemalang berdampak pada meningkatnya laju timbulan sampah. Timbulan sampah yang semakin bertambah membutuhkan pengelolaan sampah yang tepat. Salah satu alternatif fasilitas pengelolaan sampah yaitu Material Recovery Facility (MRF). MRF merupakan fasilitas yang menggabungkan beberapa teknik pengolahan sampah, seperti proses pemisahan, komposting, ataupun daur ulang. Perencanaan MRF di TPST 3R Bojongbata meliputi: metode dan peralatan yang digunakan, luas lahan yang dibutuhkan, kebutuhan SDM, dan analisis ekonomi. Timbulan sampah pada tahun perencanaan (2025) adalah sebesar 658,82 m3/hari atau setara dengan 152.846,77 ton/hari. Pemilahan yang digunakan dalam perencanaan ini adalah secara manual dengan bantuan belt conveyor dan trommel screen dengan recovery factor untuk kertas sebesar 83%, plastik 76%, logam 100%, karet 54%, kain 0%, kayu 0%, kaca/botol 100%. Pemanfaatan sampah basah dilakukan dengan pengomposan sebesar %. Lahan yang dibutuhkan sebesar 2.269m2. Produksi kompos yang dihasilkan sebesar 110,68m3/hari. Barang lapak yang dihasilkan sebesar 40,65 ton/hari, dan residu yang dihasilkan 241,13 m3/hari. Rencana anggaran biaya yang diperlukan untuk pembangunan Plant MRF adalah sebesar Rp 1.878.603.740,00

Penentuan Daya Tampung Beban Cemaran Fecal Coliform Akibat Kondisi Sanitasi Menggunakan Program Qual2e (Studi Kasus Kali Semarang, Jawa Tengah)

Semarang river is located in Central Semarang City which has length 8,25 Km and the large of the watershed or catchment area is 4,430 Km2. With a density of settlements and high population, lack of sanitation infrastructure, rob sometimes happened and land subsidence which is occurred makes Semarang River area is susceptible in health risks.Degradation of water quality occurs due to the contamination of bacterium category of Coliform because of high population, bad of sewage system, lavatory fabrication, septic tank, and infiltration wells which is not eligible both in quality and layout based on pollutant source. Knowing the level of the contamination in Semarang River is needed by identified the load capacity Fecal Coliform contamination by using software QUAL2E.The result of its simulation based on the minimum capacity of Fecal Coliform compared by quality standard of PP No. 82 year 2001 that Semarang River is not comply the requirements of the quality standards of class I Fecal Coliform is > 1.23 E +13 cell/day , class II is> 1.23 E +14 cell/day, class III is > 2,46 E +14 cell/day and IV is > 2.46 E +14 cell/day. Simulation based on the maximum capacity of Fecal Coliform compared by quality standard of PP No. 82 year 2001 that Semarang River is not comply the requirements of the quality standards of class I Fecal Coliform is > 7,70 E +13 cell/day, class II is > 7.70 E +14 cell/day, class III is > 1.54 E +15 cell/day and class IV is > 1.54 E +15 cell/day. The domestic contamination is the largest source of pollution in Semarang River area. It is because the lack of good sanitation in Semarang River area. There are so many things that cause the bad sanitary condition in Semarang River area, such as there's no waste treatment and there are so many septic tank which are not working property

Studi Pengaruh Tegangan Dan Flowrate Gas Terhadap Konsentrasi Cod Dan Warna Pada Limbah Cair Industri Tekstil Dengan Teknologi Plasma

The textiles wastewater has high concentrate of COD and Color. The initial of COD concentration is 3250 mg/L and concentration of color is 2727 PtCo. The wastewater treatment with plasma technology has several advantages compares to other treatments. This research has been conducted to analyze the effects of voltage (9,11,13kV) and oxygen flowrate (0.25,0.5,1.0 L/m) on COD and color concentration. The pretreatment on this research was using filter papper and 5 minutes aeration with pure oxygen. Based on this research and discussion of qualitative and quantitative statistical test, voltage and flowrate variations affect the concentration of COD and color. The greater voltage and flowrate are used, the smaller COD and color concentration being resulted after the process. The highest removal efficiency occures at 13 kV of voltage and 1 L/min of flowrate. By this condition, removal efficiency of COD is 68% with a final concentration 833 mg/L and efficiency of color parameters is 71% with final concentration 455 PtCo