Mhd. Fauzi
@itb.ac.id
Department of Environmental Engineering
Institut Teknologi Bandung
EDUCATION
Doctoral Student of Environmental Engineering, Institut Teknologi Bandung
RESEARCH INTERESTS
Environmental Engineering
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Puti S. Komala, Zulkarnaini Zulkarnaini, Roselyn I. Kurniati, and Mhd Fauzi
Polish Academy of Sciences Chancellery
This study aimed to analyse the effect of anthropogenic activities on the spatial distribution of total nitrogen (TN) and total phosphate (TP) in Lake Maninjau, Indonesia, during the dry season. Sampling was carried out at ten observation locations representative for various activities around the lake. Cluster analysis and ANOVA were used to classify pollutant sources and observe differences between TN and TP at each site. Concentrations of TN and TP are categorised as oligotrophic-eutrophic. The ANOVA showed spatially that some sampling locations, such as the Tanjung Sani River, floating net cages, and hydropower areas have different TN concentrations. At the same time, TP levels were consistently significantly different across sampling sites. ANOVA and cluster analysis confirmed that floating net cages were the first cluster and the primary contributor to TN and TP. The second and third clusters come from anthropogenic activities around the lake, such as agriculture, settlement, and livestock. The fourth cluster with the lowest TN and TP is the river that receives the anthropogenic activity load but has a high flow velocity. The cluster change analysis needs to be conducted when there are future changes in the composition of floating net cages, agriculture, and settlements.
Elanda Fikri, Yura Witsqa Firmansyah, Anshah Silmi Afifah, and Mhd. Fauzi
Universitas Airlangga
Introduction: This study reviewed the negative impacts of artisanal small-scale gold mining (ASGM). This paper presents an examination of ASGM’s impact on health, with the scope of discussion covering human diseases and disorders, toxic substances, public and miners’ safety, environmental damage, socioeconomic conditions. This study contributes mitigation recommendations for ASGM in Indonesia. This research subject is important because there has not been an ASGM study that has reviewed these aspects in Indonesia. Discussion: Chronic diseases, acute diseases, infectious diseases, and disabilities can threaten local communities’ health and survival. Toxic heavy metals such as mercury, cadmium, arsenic, and lead are difficult to avoid in ASGM, since they have a high level of use. Other pollutants generated by ASGM are noise and silicia dust. ASGM has caused accidents with a total of 36 minor injuries, an estimated 57 serious injuries, and 11 deaths. ASGM also causes water, soil, and air pollution; it is a threat to the geology of world heritage sites. ASGM has been proven to improve the community's economy in several parts of Indonesia. Conclusion: ASGM has proven to have a significant impact on public health, environmental sustainability, and the socioeconomic state of Indonesian society. In general, the lack of ASGM legitimization in Indonesia is an enabling factor for these impacts.
Ahmad Soleh Setiyawan, Ansiha Nur, Mhd. Fauzi, Katharina Oginawati, and Prayatni Soewondo
Springer Science and Business Media LLC
AbstractSix biofilm carriers with different polymer were studied in fixed-film systems under anoxic conditions. Different media of polymers influence wastewater treatment performance. The aim of this study was to investigate different polymeric materials, polyethylene terephthalate (PET), polyvinyl chloride (PVC), polypropylene (PP), high-density polyethylene (HDPE), and polymethyl methacrylate (acrylic), that affect bacterial attachment and biofilm formation in biofilm-based wastewater treatment technologies. Water contact angle (WCA) measurement was employed to analyze the role of wetting (hydrophilic/hydrophobic) of polymeric material surfaces in the initial phase of bacterial attachment. The increase of biofilm formation during the observation was determined by gravimetric (total attached solid) and microscopic (SEM and CLSM) analysis. The results showed the value for WCA of PET < HDPE < PVC < PP < acrylic, which indicated that a higher hydrophilicity surface leads to a higher total attached solid (TAS), biofilm formation rate, and biofilm thickness on the surface of media. The hydrophilic material (i.e., PET and HDPE) demonstrated wastewater treatment performance better than slightly hydrophilic material (i.e., PVC, PP, and acrylic) under a steady-state period (over an 80-day operation). The data showed a positive correlation between hydrophilic material and COD, NH4+-N, and TP removal. Hydrophilic material was beneficial for a fast start-up and stable biofilm formation of a fixed-bed biofilm reactor. PET media showed feasible polymer types compared to HDPE, PVC, and PP; thus, it can be used as an alternative biofilm carrier media in a larger-scale application. The findings of this study highlighted the polymeric material type has a significant effect on the performance of fixed-bed wastewater treatment.
Mhd Fauzi, Prayatni Soewondo, Yeggi Darnas, Marisa Handajani, Teddy Tedjakusuma, Muhammad Nizar, Cut R. Muna, and Ansiha Nur
Polish Academy of Sciences Chancellery
: Domestic wastewater in Gampong Garot, Aceh Besar Regency, Aceh Province, Indonesia is directly discharged to the Daroy River without any treatment process. Domestic wastewater from Gampong Garot has been one of the contributors to microplastics contamination in the Daroy River. The microplastics (MPs) contained in domestic wastewater might come from used soaps and detergent products, as well as the scouring of clothes during washing. Thus, this study aims to investigate the abundance of MPs in domestic wastewater in Gampong Garot. The sampling points were determined based on purposive sampling, with samples taken at the end of the main pipe that directly leads to the Daroy River. Organics in domestic wastewater were removed using 30% H 2 O 2 liquid through a digestion process at a temperature of 75°C. MPs characteristics such as size, shape, and colour were visually analysed using a light binocular microscope at 100× magnification, while the polymer type was analysed using Fourier transform infrared (FTIR) analysis. The concentration of MPs in domestic wastewater in Gampong Garot was 30.238 ±1.228 particles∙(100 cm) –3 sample. The most common sizes of MPs were found to be in the range of 1,001–5,000 µm, while the dominant colour and shape were transparent and fibre-like. Polyester (PES) was the most detected type of MPs. These findings highlight the need for wastewater treatment before discharge into aquatic bodies.
Mhd. Fauzi, Yeggi Darnas, Cut Rauzatun Muna, and Muhammad Nizar
Wydawnictwo Naukowe Gabriel Borowski (WNGB)
Microplastics in domestic wastewater are detrimental to living organisms and appear in a variety of sizes, colors, and shapes. The purpose of this study is to examine the distribution of microplastics in domestic wastewater, as well as the possibility for microplastic removal in wastewater treatment plants (WWTP). The sampling method used is SNI 6989.59:2008 concerning Wastewater Sampling Methods that Apply in Indonesia. To remove organic compounds in the sample, 0.05 M Fe (II) and 30% H 2 O 2 solution were added by the digestion process at 75 °C for 30 minutes and cooled. Samples were filtered using Whattman GF/C filter paper with the help of a vacuum pump and dried. To identify the concentration, shape, size, color of microplastics, visual analysis was used with the help of a microscope using the zig-zag technique. The concentration of microplastics in domestic wastewater in Gampong Garot is 30.17 ± 0.75 particles/100 mL sample. The most commonly found microplastic size is 1,001–5,000 µm, while the dominant color is transparent. The forms of microplastic found in the samples were fiber, fragments and microbeads with a percentage of 65.20%, 23.16% and 11.64%, respectively. These micro - plastics come from local community activities such as washing clothes, bathing, washing dishes, and other activities. So, it is necessary to treat domestic wastewater using WWTP. Not only does it remove organic matter and nutrients, WWTP also has the potential of microplastics removal around 7–99% depending on the processing unit.
Mhd. Fauzi, Prayatni Soewondo, Ansiha Nur, Marisa Handajani, Teddy Tedjakusuma, Katharina Oginawati, and Ahmad Soleh Setiyawan
Wydawnictwo Naukowe Gabriel Borowski (WNGB)
There has been a lot of research on domestic wastewater treatment utilizing polymer-based supporting media. The purpose of this study is to investigate the removal of organic compounds and nutrients, as well as the kinetics of substrate removal, in a batch aerobic fixed-film system that is fed by artificial domestic wastewater and uses Polyethylene Terephthalate (PET) plastic bottles waste as supporting media. The artificial domestics wastewater feeding contains C 6 H 12 O 6 , NH 4 Cl, and KH 2 PO 4 as carbon, nitrogen, and phosphorus sources. Artificial domestics wastewater treatment was performed at COD levels of 200, 300, 400, 500, and 600 (mg/L). The findings demon - strated that an aerobic fixed-film system wastewater treatment with PET-supporting media could remove organics and nutrients. The removal for COD 85.76 ± 0.59%, ammonia 76.59 ± 0.83%, nitrite 76.09 ± 0.66%, nitrate 64.30 ± 0.42%, TN 77.02 ± 0.94%, and TP 86.54 ± 0.68%, with the Singh’s method substrate removal kinetics (k 1 ) is 1.60 ± 0.05/hour. The benefit of supporting media from PET plastic bottle waste is contributing to plastic bottle waste reduction in Indonesia.
Ansiha Nur, Jonrinaldi, and Mhd Fauzi
RGSA- Revista de Gestao Social e Ambiental
Purpose: The purpose of this study is to assess the technical viability of the main distribution network (MDN) of the Paraku Drinking Water Supply System in Padang City, Indonesia Theoretical Framework: A water distribution system is a component of a WSS that delivers treated water from a water treatment facility to consumers (residential, commercial, industrial, and firefighting requirements). The main distribution network's dimensions are determined using MDN pipe specifications based on Indonesian National Standard 7509: 2011. Method/design/approach: The approach began with secondary data collecting, field observations, and technical feasibility analysis. Technical Feasibility Analysis of Main Distribution Network for the Development of Paraku Drinking Water Supply System, Padang City, Indonesia. Results and conclusion: The feasibility study considers the technical provisions of the MDN pipeline based on SK SNI 2005, where the pipeline is as short as possible and avoids difficult and expensive construction. There were two potential MDNs, and Line 2 was chosen as the alternative. The pressure and flow velocity in the pipe were then checked to see if Line 2 was technically feasible using Epanet 2.0 software. The Epanet 2.0 calculation results demonstrate that the flow of raw water from a water treatment plant with a capacity of 50 L/second can be flowed by gravity and sufficient pressure to the point of connection on the By-Pass Road. The route is completed at the pipe connection on By-Pass Road Padang (0°57'52.0"S 100°24'12.7"E) at an elevation of 30.86 meters. Research implications: Understanding the technological viability of the MDN line in developing Paraku DWSS that complies with statutory laws Originality/value: Technical Feasibility Analysis of the Main Distribution Network in the Development of the Paraku Drinking Water Supply System
Mhd. Fauzi, Prayatni Soewondo, and Ansiha Nur
Wydawnictwo Naukowe Gabriel Borowski (WNGB)
Biofilm processes are increasingly being recognized for the removal of organics and nutrients in domestic waste - water treatment. One system that is often used is the Fixed-Bed Reactor (FBR). This review aimed to analyze wastewater treatment using anoxic-aerobic FBR system with various supporting media. The method used was the descriptive analysis of articles obtained from Google Scholar, ScienceDirect, and Springer. The results of the review showed that wastewater treatment with a growth system is able to remove organics and nutrients quite high. The types of polymers used as supporting media for attaching biofilms consisted of PET, PS, HDPE, and LDPE. However, when viewed from the removal efficiency, the supporting media with polymers is superior to PET com - pared to other types. This is because PET has hydrophobic physicochemical properties which have good adhesion in the initial attachment of microorganisms. In addition, this type of PS polymer also has fairly high organic and nutrient removal efficiency, similarly to other types of polymers such as HDPE, and LDPE.
Rizki Aziz, Yenni Ruslinda, Hesti Anggia Pratiwi, and Mhd. Fauzi
RGSA- Revista de Gestao Social e Ambiental
Purpose: Organic waste processing can be done through composting. This study aims to see the effect of variations in the types and sizes of market organic waste in composting using Black Soldier Fly Larvae (BSFL).
 
 Theoretical framework: Market-generated organic waste needs to be handled without harming the environment. Composting is the proper method for treating organic waste from markets. BSFL is one of the organisms that can be utilized as a catalyst for the breakdown of organic waste. In many ways, using BSFL as an agent to break down organic materials is a profitable recycling technique. When it comes to waste management, BSFL can transform a variety of organic waste types, including animal manure, boosting the organic waste's value as a recyclable resource.
 
 Method/design/approach: Market organic waste composting using BSFL. This composting uses several variations. The variation of this study consisted of six variations. Variation 1 (100% of fruit waste with manual chopped), 2 (100% fruit waste with machine shredded), 3 (100% vegetable waste with manually chopped), 4 (100% vegetable waste with machine chopped), 5 (65% fruit waste + 35% vegetable waste with manual chopped), and 6 (65% fruit waste + 35% vegetable waste with machine chopped).
 
 Results and conclusion: Compost analysis was carried out on the maturity, quality, and quantity of compost produced. A scoring system selects the optimum variation with the best variations obtained from variations 1 and 5. The highest waste reduction index and reduction rate were obtained from variation 1 as 6.755 % and 94.571%.
 
 Research implications: Utilization of BSFL as a market organic waste decomposition agent into compost that has a selling value or is used to fertilize plants.
 
 Originality/value: Effect of variations in types of waste (fruit waste and vegetable waste) and waste size on composting using BSFL.
Yommi Dewilda, Mhd. Fauzi, Rizki Aziz, and Fahrum Dian Utami
Wydawnictwo Naukowe Gabriel Borowski (WNGB)
This research goal was to analyze food industry waste in Padang City based on Food Recovery Hierarchy and 3R concept. Waste sampling refers to SNI 19-3964-1994 with 35 sampling points spread across 6 types of food industries. According to the sampling result which includes waste generation, composition, and characteristics, the management of the food industry in Padang City was studied based on the principles of Food Recovery Hierarchy and 3R Concept. The result of the study showed that waste generated is 27.44 tons/day or equivalent to 250.31 m 3 / day with the organic waste as the largest contributor having percentage of 85.06%. On the basis of the chemical and biological characteristics, such as water content, C/N ratio, and biodegradability fraction, the waste shows that the most compatible treatment for the waste is biological treatment with composting. First step in the principles of Food Recovery Hierarchy is applying the concept of waste reduction to the waste resulted from each industry in as many as 2.19% or 4.83 kg/day. In the second step, 44.295 or 99.92 kg/day of the waste were given to livestock. The third step involved composting 39.27% or 86.72% of the waste. The fourth step was to do landfilling with 1.77% or 3.90 kg/day of the waste. The fifth step was selling 12.48% or 25.40 kg/day of the waste that has a recycling potential to collectors based on the 3R concept. If these concepts are applied, the waste taken to the dumpsite will decrease from 16.24 tons/day to 0.49 tons/day.
Elanda Fikri, Mhd. Fauzi, and Yura Witsqa Firmansyah
RGSA- Revista de Gestao Social e Ambiental
Purpose: The purpose of this research is to analyze the drinking water needs and raw water availability of DKI Jakarta Province. Theoretical framework: The theoretical basis for the population projections uses mathematical modeling (arithmetic, logarithmic, exponential, and geometric) for the next 10 years. Drinking water demand projections are obtained by calculating the demand for drinking water and the results of the population projections. Then compared to raw water availability. Potable water demands are calculated based on design criteria Method/design/approach: The method used is research and development by projecting the population of the last 10 years to predict the population of the next 10 years. The total projected drinking water needs obtained were compared with the availability of raw water. Results and conclusion: The results show that the demand for drinking water in DKI Jakarta in 2023 will be 30,892 liters/second, while the raw water capacity will only be 16,850. This shows that the level of drinking water service in DKI Jakarta is only 54.54%. When compared to 2015, DKI Jakarta's drinking water access service decreased from 65.13% in 2015 to 54.54% in 2023. Research implications: If DKI Jakarta does not succeed in finding raw water sources, it is estimated that drinking water services will drop dramatically to 35.68% in 2033. Originality/value: Studies on the projection of drinking water in DKI Jakarta, Indonesia for the next 10 years have not been conducted. So this study has good originality and becomes a study with high novelty. This study can also be utilized by DKI Jakarta government authorities in formulating environmental and health management policies.
Ansiha Nur
International Journal of Geomate
: Seed sludge from several sources is often used to initiate bacterial growth at the start-up of the biological treatment system, and it contains microplastics contaminants. Currently, there is no information regarding the presence of microplastics in a biological reactor during the start-up process. This study aimed to investigate the occurrence of microplastics during the start-up process in an anoxic fixed-biofilm batch reactor. Three units of 42 Laboratory-scale reactor feed with synthetic biodegradable substrates were inoculated with fecal sludge residential areas were filled with PET media with three different specific surface areas (SSA). The results showed that the stable biofilm formation rates were associated with the removal of COD after 75 days of operation. The source of microplastics in the reactors during the start-up process comes from fecal sludge (x̅ ± SD, n = 3) 7.666,67 ± 513.16 MP/kg (w/w). Approximately 7.96 – 9.24% of microplastics were adsorbed on the biofilm. No PET as secondary microplastics was found during the start-up process. Two types of microplastics found in the reactor were fibers and fragments with the amount of 80.87 ± 44.8% and 19.13 ± 10,1%, respectively. The types of polymers detected by the Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR) spectroscopy were PES, PE, PET, and PS. SSA affects the adhesion of microplastics on PET media. In a larger SSA, more microplastics are adsorbed on the biofilm.