Nika Rahma Yanti

• Lecturer at Andalas University

Pengelolaan sumberdaya air untuk masa yang akan datang sangat berkaitan dengan ketersediaan data. Terdapat beberapa model hidrologi yang telah dikembangkan untuk kegiatan pengelolaan DAS, salah satu model yang bisa digunakan adalah model GR2M. Penelitian ini bertujuan untuk melihat sensitivitas DAS Air Dingin terhadap perubahan curah hujan yang ter...

TThis study aims to determine the effect of bilimbi fruit juice addition on the physicochemical properties of nata de soya from tofu liquid waste and the best treatment based on the sensory analysis. The research design was completely randomized (CRD) with five treatments and five replications. The data obtained were analyzed using ANOVA and DNMRT....

Introduction Recently, abundant agricultural solid waste has been utilized as sustainable biosorbents for removing heavy metals from aqueous solutions. However, the influence of the carbonization parameters on the specified biosorbent performance has not been well discussed. In this study, we developed the removal efficiency (RE) of Exhausted Kahwa...

One of the indicators of maintaining the quality of rice plants is monitoring and managing nitrogen requirements. Nitrogen (N) absorption in rice plants can be detected by remote sensing technology using Sentinel 2-A satellite imagery data using the NDRE (Normalized Difference Red Edge) method. This research aims to determine a mathematical model t...

In this study, biochar derived from exhausted coffee husk (ECH) was used as biosorbent for removing Iron (II) from aqueous solution. The aim of this study was to improve the biosorption capacity of the biosorbent from agricultural solid waste and its usability for Fe²⁺ removal. The biosorption performance of ECH biochar was optimized through carbon...

In recent years, various industrial activities have introduced a high concentration of iron in the waterbody which causes serious problem to environment. This paper proposed the application of Exhausted Coffee Husk (ECH) as the biosorbent (BS) for removing iron (Fe) (II) in the aqueous solution. The ECH was carbonized into biochar before performing...

This research is an exploratory study. In this study, instant noodle seasoning was made from natural spices, without the addition of synthetic flavorings and preservatives. If monosodium glutamate (MSG) is consumed beyond the limit and consumed continuously for a long period of time, it will cause various side effects. MSG consumed by someone who c...

In determining the utilization of the area, many government regulations have been made from the Central, Provincial, and Regional levels using a production data approach. However, it is getting different results with the same slice. The purpose of the study is to identify areas and determine priority agricultural commodities for food crops, horticu...

The Aur Serumpun farmer group is one of the growing farmer groups with their corn farming business. This farmer group is in Simpang Alahan Mati District, Kab. Pasaman, West Sumatra Province. So far, farmers only sell corn that has been dried directly. The processing of corn is a basic need for members of farmer groups in order to have product diver...

Indonesia is recently facing the fertilizer issue as the shortage supply of subsidized fertilizers is aligned with the increasing price of non-subsidized ones. So, it eventually resulted in the unstable price of agricultural commodities. The issue has been becoming an obstacle for farmers practising agricultural cultivation, particularly those in B...

This study utilised a bio-sorbent from exhausted coffee husk (ECHBS) for the removal of ion Pb2+ from an aqueous solution. Four different activation methods were conducted by chemical activation with KOH, H3PO4, ZnCl2, and without chemical activation. In addition, the influence of process parameters such as heating temperature, heating time and hea...

Recent studies on agricultural waste as a potential precursor of biochar for heavy metals removal from aqueous solution had not considered exhausted coffee husk (ECH) as the potential one. It is well-known that the carbonization process influences the removal performance of biochar, particularly removal efficiency (RE). However, previous studies ra...

The ideal entrepreneur figure requires human qualities that can be competitive. Upgrading humans into functional beings is insufficient to provide intelligence, skills or technical expertise. The primary priority needed is to build a good mental attitude. The training activity for making tomato jam is an opportunity for the orphanage children to in...

Background: The absence of a corn processing machine is one of the problems experienced by Aur Serumpun farmer groups at Nagari Simpang. Methodology: The team of community services from Andalas University handed over a corn grinder that can be used to process dry corn into animal feed. The corn milling machine delivered is an electric machine with...

Background: This activity was carried out in order to transfer corn processing technology to become a food product that could increase food product diversification in in Simpang village, Pasaman District, West Sumatera Province. Methodology: Tortilla chips as a derivative of corn were introduced through oral presentations and group discussion forum...

Population growth has resulted in many changes in land cover that occurs in the city of Padang. The availability of groundwater which mostly comes from rainfall is an important limiting factor that increased the production of a plant. Limited water availability causes competition for water use in the community both for agricultural activities, resi...

The Covid-19 pandemic has forced people to do activities from home. Activities from home make some people feel bored and will try new useful things. One way to reduce boredom is by farming around the house. In addition to filling spare time and the aesthetic added value of farming in the yard, being able to preserve the environment encourages progr...

Silamak Pangek Pisang is, made of banana fruit, one of the Nagari Kinari Traditional Foods that has the potential to be developed and introduced to the commercial world. The development of Silamak Pangek Pisang as traditional food is expected to be able to be an effort to increase family income. Therefore, it is necessary to transfer a technology a...

Perubahan penggunaan lahan dari lahan bervegetasi ke non vegetasi mengakibatkan besarnya limpasan (run off) sehingga debit menjadi meningkat terutama pada musim hujan. Penelitian ini dilakukan untuk menganalisis debit pada DAS Air Dingin menggunakan model SWAT dan apakah model SWAT dapat diterapkan dalam mempresentasikan debit pada DAS Air Dingin....