No abstract

Domestic wastewater will cause environmental problems, if there is no treatment either communally or household scale or in other words, the people directly dispose of their waste into water bodies. There are several environmentally friendly and fairly inexpensive waste treatment systems, namely the biofilter system. The processing of the wastewater with a biofilter system in several studies resulted in very good reduction of some parameters. This research does not only use biofilter, because it is possible there are still residual inorganic compounds such as nitrate and phosphate left over from processing biofilter systems. So that a tertiary treatment is still needed using a hydroponic system. The results of this study, namely the tertiary treatment system with hydroponics can reduce the residual anoganic compounds of phosphate, such as the outlets of kangkung (76.13%), spinach (44.9%) and lettuce (45.95%), while nitrates did not decrease. The parameters of TDS, TSS, COD and BOD were reduced with the efficiency removal of 15.15-19.60%, 51.20-88.52%, 49.00-63,27% and 30.49-58.68% respectively.

Performative building envelope design correlated to solar radiation and cooling energy consumption AIP Conference Proceedings 1903, 080012 (2017) Abstract. Urban Kampong is a spontaneous settlement growing in several big cities within developing countries including Indonesia. This settlement is developed by low-income people without any plan. Therefore there is no specific housing pattern in the settlement. The characteristics of the settlements is dominated by Javanese traditional roof typology and narrow path with minimal public open spaces. People's creativity in building their houses often uses second hand building materials that make their houses look specific. Besides, infrastructure facilities within Kampong Settlement are very poor. Because the poor living in Urban Kampong have to adjust their live with minimum infrastructure facilities available, they have to be creative in using all facilities available. Through the creativities of low-income people living in Urban Kampong the research will show how the inhabitants can be empowered by exploring inhabitant's creativities and consequently the environmental quality within Urban Kampong can be improved as well.

Berdasarkan prediksi data dari Bank Dunia permasalahan sampah akan menjadi masalah yang sangat besar, apabila tidak dilakukan antisipasi penanganannya. Di Indonesia permasalahan sampah menjadi tantangan besar yang mutlak harus diatasi oleh kota-kota yang semakin hari semakin berkembang. Salah satu strategi penanganan sampah adalah menjadikan sampah sebagai sahabat dalam kehidupan sehari-hari umat manusia. Secara umum sampah dapat dibedakan menjadi sampah padat dan cair. Dengan mengelola sampah secara terintegrasi paradigma sampah sabagai sahabat manusia dapat diwujudkan. Permasalahan sampah tidak bisa lepas dari kehidupan manusia di kota-kota besar termasuk di Yogyakarta. Kelurahan Sorosutan adalah salah satu wilayah di Kemantren Umbulharjo, Yogyakarta yang beberapa penggerak masyarakatnya mempunyai pemikiran inovatif untuk menjadikan sampah sebagai sahabat dalam kehidupan mereka. Tujuan kegiatan pengabdian masyarakat yang dilakukan untuk memberikan pendampingan perencanaan pengembangan wisata edukasi sesuai permohonan dari kelurahan Srosutan. Strategi pengembangan wisata edukasi sampah digali dari masyarakat secara partisipatif dengan pendekatan teknis pengolahan limbah, desain Arsitektural, serta proses pemberdayaan masyarakat secara terintegrasi. Masyarakat diajak terlibat sejak awal proses, dimulai dari kegiatan identifikasi permasalahan dan potensi, identifikasi alternatif pilihan sampai keputusan atau pilihan tindakan. Kegiatan pendampingan sudah sampai ditahap identifikasi alternatif pilihan dengan intervensi dari luar berupa ilmu pengetahuan yang diharapkan dapat menambah wawasan masyarakat dan rasa percaya diri untuk mengambil keputusan secara mandiri. Proses pendampingan yang disadari membutuhkan waktu yang panjang masih berjalan sampai saat ini. Tahap pengambilan keputusan / pilihan tindakan masih dalam proses.

Melati air has aerenchyma which plays an important role in the process of transferring oxygen to the rhizofer to qualify the oxygen demand in constructed wetland system. In this research, the Sub Surface Vertical Flow Constructed Wetland (SSVF CW) system was built to determine the effect of the depth of the Echinodorus palaefolius's rhizofer on the quantity of dissolved oxygen (DO) in the SSVF CW system. This system was designed to treat domestic wastewater with HRT of 4 days. SSVF CW was built using soil and stones of 1-2 cm, 2.5-5 cm, 7-10 cm as media. This study shows that melati air with an average root length of 47.25 cm and the longest root of 60 cm was able to influence DO concentration in the system. The removal efficiency of TSS, BOD, total ammonia, and phosphate was 93,48%, 89,39%, 59,39%, and 66,53% respectively. Whereas nitrate and TDS didn't decrease which could be possible due to the well running of nitrification process.