Article Per Year (5 Year)
p-Index From 2020 - 2025
0.92
P-Index
This Author published in this journals
All Journal Jurnal Ilmu Lingkungan Info-Teknik Journal of the Civil Engineering Forum Cerucuk. Prodi S1 T. Sipil. Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul)
Nilna Amal
Fakultas Teknik Universitas Lambung Mangkurat Kalimantan Selatan
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Dentistry Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

Published : 9 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 9 Documents
Search

 1 
STUDI PENGGUNAAN BAHAN TAMBAH KOAGULAN “AMPO’ PADA PENGOLAHAN LIMBAH DOMESTIK YANG MENGANDUNG DETERJEN DENGAN PROSES KOAGULAI FLOKULASI Nilna Amal
INFO-TEKNIK Vol 7, No 1 (2006): INFOTEKNIK VOL. 7 NO. 1 2006
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v7i1.1696

Abstract

The principles of wastewater treatment is to convert the objectionable material to less objectionable form, to dispers the pollutants so that their concentration are minimal, or to concentrate them for isolating them from the environment. Detergent content in domestic wastewater disposal has different characteristics from the others thereby they need special approach to remove from the effluent. This research intend to recognize whether there is correlation between detergent content and the other water quality parameters. Thereafter tried to treat domestic wastewater with coagulation flocculation process use alum as coagulant and dry clay which called “Ampo” as coagulant aid, then rapid mixing is conducted along  5 minutes, this process continue with sedimentation.This research is conducted in laboratory scale use simulation water. Detergent content varies from 20 mg/l to 180 mg/l. The parameters are pH, Total Dissolved Solid (TDS) and KMnO4. Research finding shows that there is linear correlation between detergent content with pH and TDS, for KMnO4 the correlation undefinitive. It also found that there are increasing water quality that indicated with decreasing parameters after the treatment.
ANALISIS KARAKTERISTIK DAN FORMULASI RAWA DENGAN PENDEKATAN VARIABEL HIDROLOGI RAWA Nilna Amal
INFO-TEKNIK Vol 22, No 1 (2021): INFOTEKNIK VOL. 22 NO. 1 JULI 2021
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v22i1.11559

Abstract

The characteristics of wetlands can be recognized through their hydrological and ecological conditions. The hydrology of a wetland determines whether it can function initially or change. Research on the hydrology of wetlands can start from applying an appropriate water balance and a runoff generation formula for a wetland. Hydrological analysis of wetlands, including peatlands as part of watersheds, requires proper research according to the circumstances. A water balance formula calculating the equilibrium between rainfall, evapotranspiration, surface water, and groundwater is essential for recognizing wetland conditions. Analysis of the watershed flow where the wetland is located can use the rational formulas and the unit hydrograph methods of generated flow that consider suitability for the wetland conditions. This analysis is carried out by calculating the influence of variables on the wetland; rainfall, surface flow, and water detention. Other variables related to soil properties have an influential aspect in determining flow generation. The overall variables effect is reflected in the changes in the downstream flow hydrograph of a watershed. It mainly seems in the recession curve of the flood hydrograph. The peak of the flow decreases in order to wetland presence. This change is a composite of the upstream flow alteration and wetland storage influence. The influence of wetland areas is also found in flood volume, which shows a proportional relationship, namely that the increase in wide wetland areas affects the decrease in flood volume.
ANALISIS PENURUNAN HIDROGRAF SATUAN REPRESENTATIF Nilna Amal
INFO-TEKNIK Vol 14, No 1 (2013): INFOTEKNIK VOL. 14 NO. 1 2013
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v14i1.311

Abstract

Indonesia has risk to get a flood event every year since big intensity rainfalls occur every year. Some waterworks will ‘be required to anticipate from it. The flood design number should be available. One of method which mostly used to be applied is unit hydrograph. Unit hydrograph concept firstly is defined by Sherman in 1932. It still be developed by many researchers to get any unit hydrograph basin both actual unit hydrograph and synthetic unit hydrograph. Since the characteristics of some unit hydrograph basin are specifics, researches to discover any unit hydrograph the basin are significant. This research attends to obtain the representative unit hydrograph of Bedog basin in Yogyakarta province. The result shows characteristics of representative unit hydrograph are depend on rainfall intensity due to its distributions and the flood hydrograph figure.  
USAHA PENINGKATAN KUALITAS AIR DENGAN VARIASI PENAMBAHAN TAWAS-LEMPUNG KERING “AMPO” PADA LIMBAH DOMESTIK YANG MENGANDUNG DETERJEN Nilna Amal
INFO-TEKNIK Vol 12, No 2 (2011): INFOTEKNIK VOL. 12 NO. 2 2011
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v12i2.1805

Abstract

Detergent is one type of pollutants that found in domestic wastewater disposal, especially produced from laundry activities. Accumulated detergent physically effected to water body causes foaming and high turbidity therefore causes bad smell. Nowadays, there are no many well known research easily and effectively to remove detergent content. This research proposes an easy and moderate process to remove detergent content from domestic effluent with cheap and available materials. It can useful as references to design some unit operation of wastewater treatment for domestic effluent with detergent contents. For this aim, it has chosen a treatment system coagulation flocculation which give alum coagulant and dry clay coagulant aid called “ampo”, thereafter rapid mixing is conducted along 5 minutes, this process continue with sedimentation. This research is conducted in laboratories scale use simulation water thereafter, tried to the real wastewater effluent. Detergent content variable vary from 20 mg/l, 60 mg/l and 100 mg/l then optimum alum dosage is determined. It is used to determine the optimum dosage alum-dry clay “ampo” combination with various detention time variables. Research finding shows linear correlation between initial detergent content with less of it. It means that if the more detergent content used the lower efficiency occur. The detention time also influence in process decreasing of detergent content, 48 hours is the best condition. Optimum condition found at optimum dosage alum 125 mg/l and ampo 25 g/l and the 48 hours detention time which reach 41%.in efficiency.
ANALYSIS OF NEGARA RIVER SEDIMENTATION AND PREDICTION OF DAMAGE ON ANDI TAJANG BRIDGE IN HULU SUNGAI SELATAN REGENCY Andrean R. Juanizar; M. Azhari Noor; Nilna Amal
CERUCUK Vol 1, No 3 (2017): CERUCUK VOL. 1 NO. 3 MARCH 2017
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/crc.v1i3.903

Abstract

Sediments can lead to continuous agradation and degradation that potentially alters river morphology. On the other hand, scouring occurs as a consequence of contraction due to the existence of a bridge. Contraction will make the flow form a hole under the pillar. Decreasing pillars due to scouring may endanger the overall structure of the bridge.The data used in the calculation of sediment volume is river discharge data, soil samples, and geometry of Negara River. The data were then fed into HEC-RAS 4.1.0, using four formulas: Laursen, Engelund-Hansen, Meyer Peter Muller, and Toffaleti, the calculations were then performed by HEC-RAS 4.1.0 and then analyzed. The analysis was done by using three months simulation time. While the technical data of Andi Tajang Bridge is modeled on HEC-RAS 4.1.0, and then calculates scouring by considering scouring due to contraction and pillar impact. The debit used in the calculation of the scouring of the bridge is the discharge design with 50, 100, 500, and 1000 Years reinstall.The result of research is the maximum average capacity of Negara River that is 374,214 ton/day, sediment discharge and sediment concentration are 35,347 ton/day and 6,668 mg / l. The biggest scour on Andi Tajang Bridge occurred at the discharge of 267,4116 m3 / d (re-time 1000 years) that is 2.98 m. Based on the results of the study, the sediment discharges occurring in the Negara River are of great value in some parts, so that sediment control is necessary. In addition, to prevent damage to the bridge structure due to scouring, it is necessary to make protection on the structure under the Andi Tajang Bridge. Keywords: sediment, scour, bridge, Negara River, Andi Tajang Bridge, HEC-RAS 4.1.0
Feasibility Evaluation of Wastewater Treatment Plant System: A Case Study of Domestic Wastewater System in Sleman Regency, Yogyakarta, Indonesia Sri Puji Saraswati; Gregorius Henry Diavid; Sophia An Nisa; Nilna Amal; Visi Asriningtyas
Journal of the Civil Engineering Forum Vol. 7 No. 3 (September 2021)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcef.64643

Abstract

Domestic Wastewater Treatment Plant (DWWTP) type 1 and DWWTP type 2 were being evaluated. DWWTP type 1 is located in Sembir area while DWWTP type 2 is located in Tambakrejo area which are both in Sleman Regency, Special Region of Yogyakarta (Daerah Istimewa Yogyakarta or DIY), Indonesia. The emphasis of this research is to choose the manhole material which has the least leakage to the soil, influent discharge performance and wastewater treatment quality effluent. The method used to measure the discharge was by averaging daily discharge for twelve hours, while the E. Coli bacteria under the manhole was also being analyzed. Pollution Index method was also used to evaluate the pollution levels of the wastewater treatment effluent. Results of the study indicated that DWWTP type 1 performance was not optimal because the number of users was greater than that of the design. The impacts were excessive capacity, improper detention time and several parameters of the effluent did not meet the Indonesian legal regulation, including Chemical Oxygen Demand (COD), with efficiency of 34.43%. Wastewater treatment quality effluent parameters which met the Indonesian legal regulation were pH, TSS, TDS, Oil and Grease and Chlorine for DWWTP type 1. Pollution Index (PI) of DWWTP type 1 was 7.02 and PI of DWWTP type 2 was 6.96 which were relatively categorized as moderately polluted. DWWTP type 2 performance was optimal with mean discharge lower than the design discharge. Parameters of the effluent which met the Indonesian legal regulation were pH, TSS, TDS, Oil and Grease, Detergent and COD for DWWTP type 2. The COD of DWWTP type 2 met the Indonesian legal regulation with high efficiency of 73.24%. The E. Coli bacteria was not found in soils under the ring type precast concrete manholes. Hence ring type precast concrete base manhole is recommended.
Pelaksanaan PKM Percontohan Konstruksi Kolam Ikan di Lahan Pertanian Pasang Surut Danda Jaya, Barito Kuala Nilna Amal; Achmad Rusdiansyah; Holdani Kurdi; Inayah Rahmani
Jurnal Pengabdian ILUNG (Inovasi Lahan Basah Unggul) Vol 2, No 4 (2023)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/ilung.v2i4.6882

Abstract

Pengabdian kepada masyarakat merupakan upaya meningkatkan derajat kehidupan masyarakat setempat. Tim PKM Fakultas Teknik Universitas Lambung Mangkurat melakukan pengamatan langsung terhadap masyarakat desa Danda Jaya, Kecamatan Rantau Badauh, Kabupaten Barito Kuala, Kalimantan Selatan dan menemukan bahwa masyarakat desa tersebut telah terbiasa berkebun dan bertani. Salah satu potensi sebagai daerah pasang surut yang belum dimanfaatkan adalah pembudidayaan ikan. Pelaksanaan budidaya ikan terpadu dengan pertanian dan perkebunan cocok dilaksanakan di lahan ini sesuai dengan penelitian yang ada sehingga ditawarkan kepada masyarakat. Masyarakat masih terkendala dengan teknis dan biaya awal yang dikhawatirkan akan menjadi tanggungan mereka terutama apabila gagal. Untuk itu tim PKM membersamai dan memberikan pendampingan dengan pembuatan kolam percontohan dan memberikan modal awal berupa bibit ikan pepuyu. Pelaksanaan program dimulai dengan sosialisasi mengenai keuntungan melakukan diversifikasi usaha melalui penambahan pemeliharaan ikan di kolam di lahan sekitar kebun atau sawah mereka. Sosialisasi juga dilanjutkan dengan pembuatan kolam dan pemeliharaan berikutnya. Kemudian dilanjutkan dengan penebaran ikan pepuyu. Pada akhir pemeliharaan diharapkan ikan pepuyu yang mati tidak melebihi dari 30% sehingga masyarakat mempunyai optimisme untuk meneruskan sendiri usaha tersebut.
Pendampingan Kelompok Tani Desa Caraka Jaya dalam Memenuhi Kebutuhan terhadap Pupuk Organik Nilna Amal; Noordiah Helda; Eko Zulkifli
Jurnal Pengabdian ILUNG (Inovasi Lahan Basah Unggul) Vol 3, No 1 (2023)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/ilung.v3i1.9390

Abstract

The main objective of community service (PKM) is to empower the community and assist them in solving their problems. A situation analysis of the Caraka Jaya Village farmer groups conducted by the PKM Team of the Civil Engineering Study Program at Lambung Mangkurat University concluded that they need to be assisted in doing something new. The farming community complained about the reduced fertility of their soil compared to before and the presence of new crop pests that were not there previously. They suspect continuously use of chemical fertilizers and pesticides causes this. In order to overcome the situation, other efforts are needed, such as using organic fertilizers and pesticides to reduce dependence on chemical fertilizers. To introduce and encourage them to use organic materials and fertilizers, the PKM Team collaborates with an expert partner of an organic fertilizer consultant to socialize and encourage them to start using organic fertilizers. The socialization was carried out in mid-June 2023 and was attended by more than 20 farmer group members. The socialization went well, and the participants looked enthusiastic, marked by questions about how to apply it and the benefits and weaknesses. At the end of the socialization, it was discovered that some farmers were willing to use the fertilizers and pesticides brought by the PKM Team to their vegetable gardens. At the end of the application, it is hoped that there will be an improvement in vegetable yields and a change in the direction of soil and plant fertility on an ongoing basis, even though it is slow.Keywords: organic fertilizer, empowering, vegetable land, farming groups
Hubungan Evapotranspirasi, Hujan dan Elevasi Muka Air Tanah pada Lahan Gambut Tropis Sebagai Awal Penentuan Kondisi Lahan Basah Nilna Amal
Jurnal Ilmu Lingkungan Vol 21, No 4 (2023): October 2023
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.21.4.830-838

Abstract

The relationship between parameters in wetlands, especially peatlands, as a part of the analysis is interesting to study. The analysis is expected to show the condition of the peatland or the state of the wetlands in general. The water table elevation (WTE) is measured daily, so to compare it with evapotranspiration and rain, daily values for these two parameters are also required. The study was conducted between June-July and August 2022 on shallow peatlands in Gambut District, Banjar Regency, South Kalimantan Province. Evapotranspiration in this study was calculated using the Hargreaves and Modified Hargreaves method which presents a daily evapotranspiration calculation. The methods only depend on the maximum and minimum temperature, the number of outer space radiation whose magnitude depends on its location on the earth's surface, and the time when the research is conducted. The results showed that the highest daily evapotranspiration value generally occurred in August, which was in accordance with previous studies, but the magnitudes were different. The daily evapotranspiration value in this study ranged from 0.5 mm to 1.8 mm, while previously, the values were greater. WTE values show a strong relationship with rainfall, where rainfall increases the WTE value, and conversely, the absence causes the WTEs to decrease gradually. In general, the condition of the peatlands in the study area based on the groundwater elevation conditions still looks quite good with a fast response to rain. The relationship of evapotranspiration with rain and water table elevation cannot be clearly seen in this study because alterations in rainfall and WTE do not directly indicate changes in evapotranspiration values, so a more extended study covering other months and more in-depth covering parameters and other methods is needed to draw valid conclusions more accurate.  
Co-Authors Achmad Rusdiansyah Andrean R. Juanizar Eko Zulkifli Gregorius Henry Diavid Holdani Kurdi Inayah Rahmani M. Azhari Noor Noordiah Helda Sophia An Nisa Sri Puji Saraswati Visi Asriningtyas