Suharso Suharso
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View article: Application of Gambier Concentrate and Coconut Shell Smoke Condensate as Eco-friendly Inhibitors Against Magnesium Carbonate Precipitation
Application of Gambier Concentrate and Coconut Shell Smoke Condensate as Eco-friendly Inhibitors Against Magnesium Carbonate Precipitation Open
This study focused on inhibiting the formation of magnesium carbonate (MgCO3) scale using a green inhibitor obtained from a blend of gambier concentrate and liquid smoke. The experiment utilized the unseeded method, and the inhibitors were…
View article: Advancing precision in air quality forecasting through machine learning integration
Advancing precision in air quality forecasting through machine learning integration Open
In an era where environmental concerns are escalating, air quality forecasting emerges. Forecasting is a crucial tool for addressing the adverse impacts of pollution on public health and ecosystems. In urban centers like Bandar Lampung, ec…
View article: THE CONTENT OF HEAVY METALS (CD, PB, AND CR) IN WATER AND SEDIMENT IN THE MESUJI RIVER, LAMPUNG, INDONESIA
THE CONTENT OF HEAVY METALS (CD, PB, AND CR) IN WATER AND SEDIMENT IN THE MESUJI RIVER, LAMPUNG, INDONESIA Open
Mesuji River is a natural resource that provides water for human life. Mesuji River quality standards based on Government Regulation No. 22 of 2021 with class II water quality standards. River quality can be seen from the physical, chemica…
View article: Activated Carbon Adsorbents Derived from Agricultural Waste for Phenolic Pollutant Removal: A Review
Activated Carbon Adsorbents Derived from Agricultural Waste for Phenolic Pollutant Removal: A Review Open
The widespread discharge of phenol into the environment has posed a threat to the environment. Phenol waste in the aquatic environment is mainly due to its involvement in various industries such as the petrochemical, pharmaceutical, and wo…
View article: Green Synthesis of Hierarchical H-ZSM-5 from Sugarcane Bagasse Silica and Application as Catalyst for Conversion of Cellulose into Glucose
Green Synthesis of Hierarchical H-ZSM-5 from Sugarcane Bagasse Silica and Application as Catalyst for Conversion of Cellulose into Glucose Open
In this study, a hydrothermal method was applied for the synthesis of hierarchical ZSM-5 from sugarcane bagasse ash (SCBA) as a precursor using starch as a green template. The synthesis was conducted by the hydrothermal method with the mol…
View article: Study of water pollution parameters in the dry and rainy seasons on the pollution index of the Mesuji River, Lampung, Indonesia
Study of water pollution parameters in the dry and rainy seasons on the pollution index of the Mesuji River, Lampung, Indonesia Open
Background: The Mesuji River is a vital natural water resource, yet increasing human activities have resulted in significant pollution through chemical, physical, and biological contamination. This study aimed to assess the water quality o…
View article: Implementation of peer-assessment system in speaking courses
Implementation of peer-assessment system in speaking courses Open
The ability to speak effectively refers to an individual’s capacity to convey thoughts and ideas orally. Various teaching strategies are employed to enhance speaking skills, with traditional methods primarily relying on teacher-driven asse…
View article: EXTRACTION OF TITANIUM DIOXIDE (TiO2) FROM IRON SAND OF TEMBAKAK BEACH WEST COAST AS NANOPARTICLES USING HYDROMETALLURGY METHOD
EXTRACTION OF TITANIUM DIOXIDE (TiO2) FROM IRON SAND OF TEMBAKAK BEACH WEST COAST AS NANOPARTICLES USING HYDROMETALLURGY METHOD Open
The iron sand sample came from Tembakak Beach, Pesisir Barat Regency, was prepared and then analyzed using XRF, obtained an Fe content of 58.294%; Si 18.525%; Ti 8.775%; Al 6.785%; Ca 3.885%; K 1.624%, as well as minor elements with a cont…
View article: Cationic Surfactant-Modified Tetraselmis sp. for the Removal of Organic Dyes from Aqueous Solution
Cationic Surfactant-Modified Tetraselmis sp. for the Removal of Organic Dyes from Aqueous Solution Open
The modification of the Tetraselmis sp. algae material (Tetra-Alg) with surfactant Cethyltrimethylammonium Bromide (CTAB) yielded adsorbent Tetra-Alg-CTAB as an adsorbent of methyl orange (MO) and methylene blue (MB) solutions. The charact…
View article: Utilization of Prime-Legal Drafting (Prime-LD) Application in The Preparation of Legislation for The Government in Indonesia
Utilization of Prime-Legal Drafting (Prime-LD) Application in The Preparation of Legislation for The Government in Indonesia Open
The legal basis for the formation of regulations in Indonesia is regulated in Law No. 13 of 2022 concerning the establishment of legislation.The government's efforts in supporting Digital transformation can be seen in the National Medium-T…
View article: Law education for students of Muhammadiyah Pujotomo Junior High School Mertoyudan Magelang to reduce juvenile crime
Law education for students of Muhammadiyah Pujotomo Junior High School Mertoyudan Magelang to reduce juvenile crime Open
Child delinquency often leads to criminal behavior. Students involved in this case in juvenile law are known as Children in Conflict with the Law (ABH). Based on BPHN data for the 2020-2022 period, the number of ABH is 2,338 people. The th…
View article: Evaluation of the Water Quality Status and Pollution Load Carrying Capacity of Way Umpu River, Way Kanan District, Lampung Province, Indonesia, Based on Land Use
Evaluation of the Water Quality Status and Pollution Load Carrying Capacity of Way Umpu River, Way Kanan District, Lampung Province, Indonesia, Based on Land Use Open
This research aims to evaluate the water quality status and pollution load-carrying capacity of the Way Umpu River based on land use. This was carried out using the survey method by directly measuring the river water debit, pH, temperature…
View article: Hierarchical ZSM-5 Based on Silica Bagasse and Mesopore Template from Starch as Catalyst for Glucose Production
Hierarchical ZSM-5 Based on Silica Bagasse and Mesopore Template from Starch as Catalyst for Glucose Production Open
Application of agricultural biomass waste in the form of sugarcane bagasse ash (SCBA) to extract silica has been carried out and then used as the main precursor in the synthesis of ZSM-5 hierarchical pores containing without and with cassa…
View article: UTILIZATION OF THE POLYMER INCLUSION MEMBRANE METHOD FOR PHENOL TRANSPORT USING CO-EDVB 8% AS A CARRIER
UTILIZATION OF THE POLYMER INCLUSION MEMBRANE METHOD FOR PHENOL TRANSPORT USING CO-EDVB 8% AS A CARRIER Open
To separate and purify organic contaminants, the employment of liquid membrane technology based on the Polymer Inclusion Membrane (PIM) technique is a major alternative.This technology has been extensively employed on an industrial, hospit…
View article: Ombudsman as an Independent Oversight Body for Public Service in Indonesia: An Opinion
Ombudsman as an Independent Oversight Body for Public Service in Indonesia: An Opinion Open
Public Service rules state that an Ombudsman can settle a dispute involving public services.Since the decision has value as a suggestion, the Ombudsman's findings are given as recommendations.Then, legal action may be taken according to th…
View article: Adsorption Kinetics and Isotherm of Crystal Violet by Carbon Modified with Magnetite (Fe<sub>3</sub>O<sub>4</sub>) and Triethoxyphenylsilane (TEPS) from Rubber Fruit Shell
Adsorption Kinetics and Isotherm of Crystal Violet by Carbon Modified with Magnetite (Fe<sub>3</sub>O<sub>4</sub>) and Triethoxyphenylsilane (TEPS) from Rubber Fruit Shell Open
Rubber fruit shells-derived carbon (RC) modified with magnetite (MRC) and triethoxyphenylsilane (TEPS) (SRC) made from rubber fruit shells were used to adsorb crystal violet (CV) dye effectively. The RC was successfully modified by magneti…
View article: Pendampingan Pembuatan Izin Legalitas Usaha (SP-PIRT) Produksi Cistik Sofia di Dusun Kalitengah, Magelang
Pendampingan Pembuatan Izin Legalitas Usaha (SP-PIRT) Produksi Cistik Sofia di Dusun Kalitengah, Magelang Open
The community service program aims to assist in making the legality of business licenses with the Home Industry Food Production Certificate (SPP-IRT) for Cistik Sofia processed. For most of the people in Kalitengah Hamlet, Glagahom…
View article: Hubungan Antara Konformitas Teman Sebaya dengan Pengambilan Keputusan Studi Lanjut Siswa SMP
Hubungan Antara Konformitas Teman Sebaya dengan Pengambilan Keputusan Studi Lanjut Siswa SMP Open
THE CORRELATION BETWEEN PEER CONFORMITY WITH FURTHER STUDY DECISION MAKING OF JUNIOR HIGH SCHOOL. This research was holded based on the phenomenon of Junior High School students who were less independent in further study decision making, s…
View article: Modification of activated carbon from rubber fruit shells with magnetite coating and adsorption of brilliant blue in aqueous solution
Modification of activated carbon from rubber fruit shells with magnetite coating and adsorption of brilliant blue in aqueous solution Open
In this research, the synthesis and characterization of activated carbon from rubber fruit shells was carried out through physical-chemical activation (RS-AC) followed by magnetite coating to produce magnetite-physical-chemical activated c…
View article: Identification of Career Behaviors and Labor Market Perceptions Among Postgraduate Students
Identification of Career Behaviors and Labor Market Perceptions Among Postgraduate Students Open
Postgraduate students today are faced with the reality of the contemporary labor market.Career development service programs for postgraduate students need to be arranged based on alignment between graduates and university programs.Due to t…
View article: PHYSICO CHEMISTRY PROPERTIES OF PARTICLE BOARD BASED ON COCO DUST AND LIQUID NATURAL RUBBER
PHYSICO CHEMISTRY PROPERTIES OF PARTICLE BOARD BASED ON COCO DUST AND LIQUID NATURAL RUBBER Open
A particle board is a board made of lignocellulosic material and together with an adhesive and then pressed. In this research, a particle board is made by mixing coco dust with a number of liquid natural rubber percentages. Next particle b…
View article: EXTRACT OF MANGOSTEEN PEEL (Garcinia mangostana L.) AS CALCIUM CARBONATE SCALE INHIBITOR
EXTRACT OF MANGOSTEEN PEEL (Garcinia mangostana L.) AS CALCIUM CARBONATE SCALE INHIBITOR Open
In this research, it has been conducted the participation of mangosteen peel (Garcinia mangostana L.) extract in the calcium carbonate (CaCO3) growth solution to a green inhibitor of CaCO3 scale establishment utilizing unseeded technique a…
View article: UTILIZATION OF ACTIVATED CARBON FROM CANDLENUT SHELLS (Aleurites Moluccana) AS METHYLENE BLUE ADSORBENT
UTILIZATION OF ACTIVATED CARBON FROM CANDLENUT SHELLS (Aleurites Moluccana) AS METHYLENE BLUE ADSORBENT Open
Candlenut shell is a potential material to be used as activated carbon. This study aims to explore the kinetics and isotherm of adsorption of activated carbon from the shell of candlenut against the methylene blue (MBe) dye in the solution…
View article: Conversion of the surface charge of Nannochloropsis sp. with cations and the adsorption test for methylene blue and methyl orange in dyes solution
Conversion of the surface charge of Nannochloropsis sp. with cations and the adsorption test for methylene blue and methyl orange in dyes solution Open
Conversion of algae biomass load of Nannochloropsis sp. (AB-N) with Na+ cations to produce algae-Na (AB- NS) as adsorbent of methylene blue (MB) and methyl orange (MO) has been carried out. Adsorbent characterization using Infrared Spectro…
View article: Effectiveness of Law No. 40 of 1999 on the press (study of the journalistic code of ethics on reporting that triggers conflict in society)
Effectiveness of Law No. 40 of 1999 on the press (study of the journalistic code of ethics on reporting that triggers conflict in society) Open
In an effort to support the success of Indonesia's development, arrangements are needed for all supporting elements. One of them is the regulation of press activities, namely through Law Number 40 of 1999 concerning the Press and the Journ…
View article: Synthesis and characterization exopolysaccharide from algae Spirulina sp. using technique sol-gel as adsorbent Pb(II) ion
Synthesis and characterization exopolysaccharide from algae Spirulina sp. using technique sol-gel as adsorbent Pb(II) ion Open
In this study, a modification of exopolysaccharide (EPS) from Spirulina sp. algae biomass with silica (HES) and exopolysaccharide from Spirulina sp. algae biomass with silica coated by magnetite particles (HESM) has been done successfully.…
View article: Dye Anionic Removal From Water by Green Synthesized Nannochloropsis Sp.- Cetyltrimethylammonium Bromide Surfactant: Kinetics, Adsorption Isotherm and Adsorbent Regeneration
Dye Anionic Removal From Water by Green Synthesized Nannochloropsis Sp.- Cetyltrimethylammonium Bromide Surfactant: Kinetics, Adsorption Isotherm and Adsorbent Regeneration Open
The authors have requested that this preprint be removed from Research Square.