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All Journal JURNAL AIR INDONESIA JURNAL TEKNOLOGI LINGKUNGAN Jurnal Rekayasa Lingkungan Jurnal Hidrosfir Indonesia
Petrus Nugro Rahardjo
Kelompok Teknologi Pengelolaan Air Bersih dan Limbah Cair
Agriculture, Biological Sciences & Forestry Environmental Science

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IDENTIFIKASI MASALAH APLIKASI TEKNOLOGI PENGOLAHAN AIR PAYAU DENGAN SISTEM RO DI KABUPATEN REMBANG DAN CARA MENGATASINYA Rahardjo, Petrus Nugro
Jurnal Air Indonesia Vol. 6 No. 1 (2010): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.621 KB) | DOI: 10.29122/jai.v6i1.2458

Abstract

A brackish water treatment process technology based on reverse osmosis principle has been applied in an Islamic school community “Raudlatuttalibin”, Rembang, since July 2008. Production capacity of the water treatment plant was designed 10M3 of drinking water per day. After running the system for one and a half years, a lot of problems were consecutively appearing untill the end of March 2010. This identification activity clarified all problems in detail and explained how to solve them. They are not only technical problems, but also social and cultural problems of the community. To solve them it must be started from increasing the capability of operators and applying the clean production concept. Finally by changing all the technically broken spareparts and running the RO unit system properly, they will be guaranteed to be able to produce good quality of drinking water.  Keywords : water treatment plant, reverse osmosis, technical & social problems.
PERMASALAHAN TEKNIS INSTALASI PENGOLAHAN AIR LIMBAH PABRIK MINYAK KELAPA SAWIT Rahardjo, Petrus Nugro
Jurnal Air Indonesia Vol. 1 No. 1 (2005): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jai.v1i1.2290

Abstract

Crude palm oil produced in Indonesia has already been known as the second largest in Asia. Unfortunately tens of palm oil factories (CPOF) spread out in Indonesia have not good wastewater treatment plants (WWTP) yet. PT. Kertajaya, as an example, which is located in Regency Pandeglang, still has BOD contained in its final effluent of the wastewater treatment plant more than 200 ppm. In fact the capacity and capability of WWTP in PT. Kertajaya are much more than enough for only 288 m3 per day. Because of improper operation and maintenance of the WWTP, the technical problems are accumulated, such as, increasing the sediment, decreasing the retention time and channelling of the wastewater being treated. The following affect is the treatment process is not going well and the quality of effluent is getting worse. To solve the technical problems, it is very important to remove the sediment periodically and give aeration in the aerobic pond. A recommendation for the wastewater treatment system has been proposed. The system has eight processes including oil separation or first sedimentation, neutralization, equalization, anaerobic degradation, aerobic degradation,  final sedimentation and sludge drying. Katakunci : BOD, technical problem, wastewater, anaerobic. Aerobic process
KAJIAN PENGELOLAAN SUMBER DAYA AIR UNTUK APLIKASI KONSEP ECOPARK PADA TAMAN KOTA YANG BERUKURAN BESAR DI DKI JAKARTA Rahardjo, Petrus Nugro
Jurnal Teknologi Lingkungan Vol. 8 No. 2 (2007): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (141.577 KB) | DOI: 10.29122/jtl.v8i2.418

Abstract

Environmental problems which happen in Jakarta metropolitan city, havealready come into a very critical condition. All surface water, such asrivers, swamps and small lakes, have extremely been continuingpolluted. Even ground water, not only the quality is getting worse, butalso the quantity is decreasing. Otherwise many swamps and smalllakes have been changing into a domestic settlement or commercialestate. One of few alternatives to cope with the problems is to manageall gardens in Jakarta by applying a new concept “Ecopark” which makesan optimizing the ecological function of a park. The concept is basedon the aim to make a friendly garden which is a part of green openspace. Through this application, especially for big gardens with thearea 5.000m2 - 10.000m2, the water resource potential will increase andits conservation will be continuously guaranteed. Garden CornelSimanjuntak dan Utama Raya are the two examples of big city gardenswhich have not been managed yet by the concept Ecopark. This activityexplained how the two gardens have to be properly managed by theconcept. The water use pattern for watering the plants, garden as thecatchment area and domestical wastewater recycling for watering arethe major ways to optimize the ecological function of gardens.
KAJIAN UNTUK APLIKASI KONSEP ECOPARK PADA TAMAN KOTA YANG BERUKURAN SEDANG DI DKI JAKARTA DITINJAU DARI ASPEK PENGELOLAAN SUMBER DAYA AIR Rahardjo, Petrus Nugro
Jurnal Teknologi Lingkungan Vol. 8 No. 1 (2007): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (223.711 KB) | DOI: 10.29122/jtl.v8i1.400

Abstract

Because of too many environmental problems have already beencontinuing in Jakarta, the local government of Province DKI Jakarta isintensively doing huge environmental programs in order to cope with theproblems. One of the programs is the application of concept “Ecopark”in managing all of the cityparks or gardens in Jakarta. A lot ofcitygardens in Jakarta have not correctly been managed by the concept,especially gardens which are classified into medium size park. Theaim of this specific program is to optimize the environmental functionof all gardens in the field of water resource management, such asincreasing the efficiency in water resource exploitation, conservation ofthe water resource by rain harvesting and using of treated domesticalwastewater. Content of the assessment in this paper focused on threecitygardens, i.e Cisanggiri, Kelapa Cengkir Barat and Gandaria VGarden. The conclusion said that all the three gardens have an excellentpotential to be developed by the concept Ecopark.
PEMENUHAN KEBUTUHAN AIR BERSIH MASYARAKAT KEPULAUAN SERIBU MELALUI OPTIMASI PEMANFAATAN PENAMPUNG AIR HUJAN Rahardjo, Petrus Nugro
Jurnal Teknologi Lingkungan Vol. 1 No. 3 (2000): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (380.576 KB) | DOI: 10.29122/jtl.v1i3.181

Abstract

The very limited natural resources, especially in small islands such as in Thousand Island, north Jakarta, may cause a lot of environmental problems if the inhabitant is not wise in managing and exploiting its environmental power resources. One of the chronic problems in Thousand Island is the lack of clean water availability. That specific problem becomes worse and worse because of increasing of the population. In dry season the condition always gets worst. Many acts have been done to deal with the problem, but in fact until now it can not be solved properly. After doing a direct survey to all densely populated islands in Thousand island, it is found that one good alternative can possibly be done to solve the problem. It is to develop and maximize the using of rain water reservoir (PAH). Based on the calculation using two approaches, the fact that rain water reservoir in Untung Jawaand Lancang Besar island are already enough. For Tidung Besar, Panggang and Pramuka island, they need to enlarge the roof as a receiver of rain-water falling down. Another alternatif that should be carried out is to rehabilitate all the damage rain-water reservoirs. Kelapa island needs not only roof enlarging and rehabilitation of the rain-water reservoirs, but also developing some new rain-water reservoirs. Harapan island still needs developing some new rain-water reservoirs and roof enlarging to get more rain water.
EVALUASI DAN PERENCANAAN AWAL UNTUK MENINGKATKAN EFEKTIFITAS IPAL SISTEM ANAEROBIK PKS PT. DELI MUDA PERKASA Rahardjo, Petrus Nugro
Jurnal Teknologi Lingkungan Vol. 18 No. 1 (2017)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (454.174 KB) | DOI: 10.29122/jtl.v18i1.129

Abstract

Pabrik Kelapa Sawit PT. Deli Muda Perkasa (DMP) di Kabupaten Batanghari beroperasi sejak tahun 2007 dengan kapasitas 60 ton TBS per jam. Namun hingga tahun 2015 masih mempunyaibanyak masalah lingkungan, karena hasil pengolahan IPALnya masih belum memenuhi baku mutu lingkungan. Kegiatan ini bertujuan untuk mengevaluasi keefektifan IPAL anaerobic PT. DMP,mengindentifikasi permasalahannya, dan memberi rekomendasi beberapa alternatif dalam perencanaan untuk meningkatkan efektifitas IPAL tersebut. Metodologi yang digunakan yaitudiawali dengan survei lapangan, wawancara dengan penanggung jawab IPAL, pengambilan sampel air limbah, analisa laboratorium dan analisis proses pengolahan sistem anaerobik IPAL.Kesimpulan yang diperoleh yaitu efektifitas proses pengolahan anaerobik masih rendah, terutama untuk pengurangan parameter minyak/grease dan Nitrogen Total. Sedangkan untuk parameterBOD dan COD hasilnya sudah sangat bagus. Untuk mengoptimalkan efektifitas unit-unit pemroses anaerobik dapat ditempuh beberapa alternatif, misalnya pengurasan seluruh unit-unit kolam pemroses, perubahan sistem inlet dan outlet, pemasangan flowmeter, remining semua kolam pemroses dan rekonstruksi total IPAL. Selain itu juga harus dilakukan perawatan secara kontinu, yaitu dengan pengerukan lumpur-lumpur endapan secara periodik. Dengan demikian dibutuhkan penanganan lumpur endapan secara khusus dan baik untuk menjamin tidak adanya pencemaran lingkungan sekitarnya.Kata kunci: efektifitas, pengolahan anaerobik, penanganan lumpur
IDENTIFIKASI MASALAH PENYEDIAAN AIR BERSIH DI IBUKOTA KABUPATEN KUTAI BARAT DAN ALTERNATIF PEMECAHANNYA Rahardjo, Petrus Nugro
Jurnal Teknologi Lingkungan Vol. 5 No. 2 (2004): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.177 KB) | DOI: 10.29122/jtl.v5i2.305

Abstract

As the capital city of West Kutai Regency, Sendawar still has a lot of problems relating to clean water supply for its residence. Those problems are caused by the very limited capability of local water authority (PDAM), the worse of environment management and water pollutions. Water pollutions occur because of improper mining activities (gold, silver and coal), domestic wastewater and sediment particles affected by increasing run off coefficient and erosion. Therefore the quality of surface water (River Mahakam) becomes worse and worse. PDAM Problems are not only being able to serve clean water need just for 19% residence in Sendawar, but also the low capability of human resources. There are three ways to solve those problems. Firstly, it is very important to apply a concept “One River One Management” in the Mahakam Catchment Area. Secondly, Application ofwastewater treatment technology must be carried out to reduce the pollutants produced from mining industries and municipal area. The third is by improving the human resource quality, especially in the field of environment and sustainable development.
UNIT-UNIT PEMROSES PENGOLAHAN LIMBAH CAIR DOMESTIK SKALA RUMAH TANGGA Rahardjo, Petrus Nugro
Jurnal Teknologi Lingkungan Vol. 9 No. 1 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (89.846 KB) | DOI: 10.29122/jtl.v9i1.439

Abstract

In the last ten years water pollution problem in Jakarta has been becoming more serious. The highly increasing population causes the rising amount of domestic wastewater. Rivers in Jakarta have already been polluted by various wastewaters, such as from industries, domestic and many institutionals (offices, hospitals, markets/shop areas, etc.). It has been well known that the domestic wastewater contributes 70% in causing the river pollution, especially in Jakarta. Therefore it is very important to apply the proper domestic wastewater treatment system which is able to reduce thecontaminants until an environmentally required standard. Some types of domestic wastewater treatment have already been used, but the results do not fulfil the environmental required standard. At least a unit of domestic wastewater treatment should have a control tank as the beginning filter, anaerobic part, aerobic part and a sedimentation tank as the final part of the whole system. An advanced technology using a biofilter media has been proposed and based on the experiment, the result has proven that it can reduce BOD from more than 1,000 ppm to less than 30 ppm. The retention time is about 3 days. The conclusion shows that this new wastewatertreatment system is properly suitable alternative to be applied in domestic area, especially in a densely populated region. By applying the system we can also cope with the water pollution problem caused by domestic wastewater.
PROBLEM IDENTIFICATION OF DOMESTIC WWTP OFFICE BUILDING AND ALTERNATIVE TO OVERCOME THEM (CASE STUDY : PT. USAHA GEDUNG BDN, JAKARTA) Rahardjo, Petrus Nugro; Widayat, Wahyu
Jurnal Rekayasa Lingkungan Vol 9, No 2 (2016): Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (249.808 KB)

Abstract

In general, the main problem of domestic wastewater treatment plant (WWTP) for office buildings in Jakarta is the incompatibility between the surface load of wastewater and the capacity of WWTP. At the beginning a capacity of WWTP is already predetermined and corresponding to the rate of wastewater generated. But because of the demands of the means for the benefit of various business, so that the capacities of the office building should be developed. This case occurred on PT. Usaha Gedung BDN. Four environmental parameters, namely TSS, Ammonia, Grease Oil and COD, produced from the WWTP still exceeded the allowable quality standards. Therefore PT. Usaha Gedung BDN immediately needs WWTP capacity development plan which is adequate. Various types of technology have been widely available and ready to be used to overcome the problems of the WWTP. But on this occasion it is advisable to develop the existing WWTP facilities by adding a new WWTP unit. The first WWTP is functioned as the preliminary processing unit and the new WWTP will become an advanced processing unit. The use of a combination of anaerobic-aerobic biofilter will be relied upon to reduce pollutants that can qualify water quality standards in accordance with applicable regulations.keywords : problem identification, domestic wwtp, advanced processing
MASALAH BANJIR SEBAGAI AKIBAT DARI BURUKNYA SISTEM PENGELOLAAN DAS: STUDI KASUS DI DAS CANTIGA BINTARO Rahardjo, Petrus Nugro
Jurnal Hidrosfir Indonesia Vol 4, No 1 (2009)
Publisher : Jurnal Hidrosfir Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (174.47 KB)

Abstract

Management of a catchment area should be done properly. For an example, there is no doubt a big mistake has already been done by the local government of DKI Jakarta in managing the 3 catchment areas, such as Ciliwung, Citarum and Cisadane. The management of the three catchment areas is coordinated by DKI Jakarta, together with Province West Java and Banten. The local governments do not have a consistency in planning and developing their region, especially for the supporting regions located in theupstream area. The effect is a big flood happened in Jakarta on the first February 2008. For the small catchment area, such as Cantiga, it is a good example to be discussed. The catchment area is located in district Pondok Aren. Flooding continuously happens every rainy season. The seven causes are no sustainable development program, no cleanly way of life, no good drainage system, unconsistency on regional planning and development program, no intensive conservation program, land subsidence and very high amount of rainfall. To cope with the flood problem and to carry out the flood control action, many consistently applied programs have to be done, ie. sustainable development, mopping up way of life, water front village concept implementation, one river one management concept implementation, artificialrecharge ponds and ground water injection.
Co-Authors Satmoko Yudo Setiyono Setiyono wahyu widayat