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All Journal JURNAL AIR INDONESIA CSID Journal of Infrastructure Development
Azmi, Khalidah Nurul
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Engineering Social Sciences

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APLIKASI TEKNOLOGI PENGOLAHAN AIR LIMBAH DOMESTIK MENGGUNAKAN KOMBINASI BIOFILTER AEROBIK MEDIA PLASTIK SARANG TAWON DAN BIOFILTER MEDIA KERIKIL DENGAN ALIRAN KE ATAS Azmi, Khalidah Nurul; Danumihardja, Irma Gusniani; Said, Nusa Idaman
Jurnal Air Indonesia Vol. 10 No. 2 (2018): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1029.731 KB) | DOI: 10.29122/jai.v10i2.3760

Abstract

Air limbah domestik memberikan kontribusi besar terhadap pencemaran air di perkotaan karena penerapan pengolahannya belum optimal. Penelitian kombinasi biofilter aerobik dengan media plastik sarang tawon (MPST) dan media kerikil (MK) dilakukan untuk mengolah air limbah domestik. Pemilihan proses mempertimbangkan baku mutu dan sasaran penerapannya untuk skala individual. Kombinasi pada HRT 24 jam menurunkan COD, NH4-N, TSS masing-masing 84,09%, 81,62%, 93,9%. Pada HRT 36 jam, menurunkan COD, NH4-N, TSS masing-masing 76,68%, 97,67%, 85,04%. Efisiensi dipengaruhi oleh variasi HRT dan perlakuan pada HRT 24 jam untuk meningkatkan kinerja reaktor, yaitu perubahan HRR dan tipe aerasi. Perubahan HRR dari 1 ke 0,25 (aerasi samping) meningkatkan kinerja reaktor dalam menurunkan COD dari 81,5% menjadi 88,05%, NH4-N dari 77,23% menjadi 81,7%, TSS dari 93,43% menjadi 96,35%. Perubahan tipe aerasi dari aerasi samping menjadi aerasi merata (HRR 0,25) meningkatkan kinerja reaktor dalam menurunkan NH4-N dari 81,7% menjadi 89,56%, sementara COD turun dari 88,05% menjadi 82,22% dan TSS turun dari 96,35% menjadi 90,66%. HRT 36 jam dipilih sebagai HRT optimum dengan aerasi merata dan HRR 0,25. Hal ini terkait efisiensi penurunan NH4-N yang sangat tinggi karena DO >2 mg/L dengan aerasi merata dan dalam HRT yang lebih lama, serta semua parameter berada di bawah baku mutu.Kata kunci:  air limbah domestik; biofilter aerobik; efisiensi penurunan; HRT
Green City Development Concept Pilot Project in Serpong Urban Residential Ali, Firdaus; Lestari, Dwi Lintang; Putri, Marsya Dyasthi; Azmi, Khalidah Nurul
CSID Journal of Infrastructure Development Vol. 2, No. 1
Publisher : UI Scholars Hub

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Abstract

In recent times, continuous population growth and rising urbanization in many countries has made some considerable impact in the quality of life of people living in the urban area and in the environmental itself. The increasing number of people in an area will create a scarcity of resources and also degrade its environmental condition, especially the water resources. In order to counter these negative impacts, a sustainable urban development concept is put in place. This study uses three main focuses related to green city development concept, which are low water footprint, low carbon footprint, and zero/less delta runoff. The object of study is the implementation of the three main focuses selected in Serpong Urban Residential, as a pilot project of an integrated modern and rapid-growing residential area. This study includes the water balance produced from the calculation, and the strategic recommendation proposed for managing the water resources based on the review of the aspects. From the water balance, it is known that the area will have a water deficit in initial forecasted years. In this case, the amount of forecasted water deficit can be covered by utilizing either rainwater harvesting method or water recycling method. Therefore, Serpong Urban Residential can become a pioneer for developers with its integrated study related to the green city development concept.
Optimization of Water Resources Management of Depok City With Water Stress Index and SWOT Analysis Ali, Firdaus; Lestari, Dwi Lintang; Putri, Marsya Dyasthi; Azmi, Khalidah Nurul
CSID Journal of Infrastructure Development Vol. 2, No. 1
Publisher : UI Scholars Hub

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Abstract

Excessive groundwater use is one of an impact from excesses of population growth that can give impacts to environment quality. Therefore, conversion to piped water needs to be carried out immediately. Depok City Government has to add water treatment plants (WTP) that will use the rivers that cross the city. The four rivers are Angke, Pesanggrahan, Ciliwung, and Cikeas River, which is the river infrastructure is not optimal. This research has several goals, namely analysis of the water needs, evaluation of the condition of the rivers, and provide recommendations to the stakeholder. Therefore, it can be seen that there is a combination of several methods to convert quantitative data into qualitative. This study uses the analysis method of water-stress indicators (WSI) and water balance calculations to determine the condition of water resources in the Depok area at this time. The results of the analysis show that there are 2 villages with very high WSI, namely Bojongsari and Cipayung. This is due to the absence of piped water lines in the two regions. Based on the results of the water balance analysis, it can be seen that the strategy in increasing the capacity of WTP has a significant impact until 2027, but there needs to be additional supply back in 2027 as an increase in water demand so that depletion in the water balance can be avoided. Based on the Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis, it is found that the management of water resources of Depok City is on quadrant IV. Thus, the strategy to be applied is Adaptive Strategy, which is reduce the weaknesses and avoid threats. Therefore, the management of water resources Depok City is recommended to control the internal performance from falling apart. This strategy is maintained while continuing to improve itself.
Co-Authors Ali, Firdaus Danumihardja, Irma Gusniani Lestari, Dwi Lintang Nusa Idaman Said Putri, Marsya Dyasthi