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Techno LPPM
Published by Universitas Pembangunan Nasional Veteran Yogyakarta
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Articles 124 Documents
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EVALUATION OF TREATMENT DRINKING WATER TREATMENT (IPAM) INSTALLATION OF SUGIHAN PDAM TIRTA WIJAYA, CILACAP REGENCY Akbar Maulana Grantaka; Sri Hastutiningrum; Sudarsono Sudarsono
Techno LPPM Vol 8, No 1 (2022)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

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Abstract

Water is one of the important factors in fulfilling human needs. The existence of water on earth is very abundant but the quality doesn't meet the standards. The system value of a DWTP can be seen from 3 aspects, quality, quantity, and continuity of water produced. Dry season, increasing population, and the age of DWTP are things that will be faced in maintaining the three aspects of value. Seeing the several conditions experienced by PDAM Tirta Wijaya, it is necessary to conduct an evaluation to determine the performance of each unit, the quality of raw and production water, the fulfillment of water needs, the operation during the dry season and the optimization that needs to be done.  The method used is direct observation to DWTP Kesugihan. The results of the evaluation of DWTP Kesugihan are that the flocculation, sedimentation and filtration units is not comply with SNI 2774-2008, the water demand in 2029 is 1170.7 L/second.  From this study it can be concluded that the performance of the DWTP unit is categorized as quite good, the quality of raw water is still worthy of consideration, the quality of production water has met the quality standards, DWTP Kesugihan has not been able to fulfill water needs in 2029 as much as 80% coverage, there is no operational standard during the dry season. Optimization of DWTP Kesugihan by increasing the height of the filtration unit to 6.5 m, the nozzle diameter to 0.05 m and the number of nozzles to 500 and making SOPs for the dry season
STUDY OF GROWTH YIELD AND SEED QUALITY OF CUCUMBER (Cucumis sativus L.) ON BIOFERTILIZER AND LIQUID SMOKE FERTILIZER Bayu Aji Pratama; Ami Suryawati; Alif Waluyo
Techno LPPM Vol 8, No 1 (2022)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

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Abstract

The application of biofertilizer and liquid smoke fertilizer is either method to increase the production of cucumber according to the environmentally friendly because it’s made from organic materials. The purpose of this research is to get the biofertilizer dose and the best concentration of the liquid smoke fertilizer to increase the growth and yield of fruit as well as the quality of seed cucumber. This research method is a field experiment that arranged by Completely Randomized Group Design (RAKL). The first factor is biofertilizer dose (P) that consist of 3 levels, that is: 5 ml/plant, 10 ml/plant and 15 ml/plant. The second factor is the concentration of the liquid smoke fertilizer (O) that consist of 3 levels that is: 1%, 2% and 3%. The control crops were fertilized according to the farmer’s habit of using NPK without biofertilizer and liquid smoke fertilizer treatment. The obtained data were analyzed by diversity analysis level 5%. To find out the significant differences between the control and the treatment, we did Contras Orthogonal Test level 5% and  Duncan Multiple Distance Test level 5%. The result showed that the combination of treatment was significantly better than the control. There is an interaction between the dose of  biofertilizer and concentration of liquid smoke on the vigor index parameter. The combination of P2O2 (biofertilizer 10 mL/plant and liquid smoke 2%) treatment is the best treatment on vigor index parameter.  The best P2 (dose of biofertilizer 10 mL/plant) treatment was on the parameter of fruit weight per plant. O2 (concentration of liquid smoke 2%) treatment was best on the parameters of fruit weight per swath.
THE STRUCTURAL GEOLOGY STUDY AND SLOPE STABILITY ANALYSIS IN KARANGBAWANG VILLAGE, AJIBARANG, CENTRAL JAWA Jatmika Setiawan; M. Nurjati Setiawan; M. Gazali Rahman; Abdullah Panji Prasetyo; Nuli Hapsari
Techno LPPM Vol 8, No 1 (2022)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

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Abstract

Engineering geology or Geotechnical is the application of geological science in engineering practice for the purpose of ensuring that geological factors affecting the location, design, construction, operation and maintenance of engineering works have been properly identified and taken into account. Engineering geology research can be carried out during the planning, environmental impact analysis, civil engineering design, optimization engineering and construction stages of public and private projects, as well as in the post-construction and project investigation stages. Engineering geology research is carried out by a geologist or an educated engineering geologist, trained professionals and has the ability to recognize and analyze geological hazards and adverse geological conditions. The whole purpose is to protect life and property from damage as well as solutions to geological problems. Geological observations made in the form of geological structures in the form of joints and faults are very important parameters carried out in the planning stage of a development because it is very influential in the short, medium and long term stability of a civil building. Detailed measurements and mapping of the intensity level of geological structures will be able to assist engineering geologists in making recommendations for a civil construction project. Geological engineering study of the Ajibarang area and its surroundings, especially in the area of PT.development project crusher and conveyor. So that it will get good slope safety and can be used as the basis for the development of the crusher and conveyor at PT. Semen Bima. 
EFFECT OF ACTIVATED ZEOLITE ON β-KAROTEN BLEACHED PALM OIL LEVELS Tengku Auni Syazana; Ariany Zulkania
Techno LPPM Vol 8, No 1 (2022)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

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Abstract

Palm oil is one of the Indonesian prima donna whose total national production is increasing every year. Palm oil can be used as a raw material for production of cooking oil products, industrial oil needs and energy sources. The base color of Crude Palm Oil (CPO) is due to the presence of a high β-carotene content in palm oil which can produce a red color in CPO. For this reason, it is necessary to bleach CPO. Most of the palm oil industry currently uses adsorbents as a pale material in the Bleaching process. This research does several things related to the process of making palm oil in general, the process is the production of adsorbents with activated adsorbents, removal of gum with H2SO4, bleaching process with adsorbents and analysis of bleaching oil (BPO). The experimental results show that zeolite can be used as an adsorbent for the bleaching process of palm oil. Zeolite has been activated by chemical methods using H2SO4 solution before being used as an adsorbent. From the experimental results, the best results for the application of β-carotene were obtained from 3% activated zeolite with 15% by weight zeolite.
THE RECLAMATION TECHNICAL PLAN ON ANDESIT MINING IN DADIREJO VILLAGE, BAGELEN DISTRICT, PURWOREJO REGENCY, CENTRAL JAVA PROVINCE Boy Arif Raja ihutan Siregar , Dian Hudawan Santoso , Muammar Gomareuzzaman
Techno LPPM Vol 8, No 1 (2022)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

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Abstract

This research was conducted on an andesite mining area in Dadirejo Village, Bagelen District, Purworejo Regency, Central Java Province. The mine has stopped operating since 2018 until the end of 2019. Since the mining activity stopped, there have been no signs of management being carried out so that environmental degradation has occurred in the geophysical aspect at the research site. From the problems mentioned earlier, this study aims to determine the level of environmental damage in order to determine the technical planning of reclamation. The research methods used are survey and mapping to measure the level of environmental damage, laboratory analysis to determine soil fertility, appraisal to evaluate environmental damage, and data analysis to determine reclamation directions. The results of the evaluation of the level of environmental damage, the research location is classified as class III, namely the heavily damaged category with a value of 16. The reclamation direction is the manufacture of a bench terrace with a height of 2 m and a width of 4 m with a slope of 45o, a drainage channel with a height, and a holding pond. The re-vegetation technique was carried out in monoculture at a level with a spacing of cassava 0.7 mx 0.6 m, peanuts 0.4 mx 0.15 m, maize 0.2 mx 0.7 m, while the bottom of the mine was intercropped with a distance of 0.7 m. planting 1 mx 1 m.
EXTRACTION OF NATURAL COLOR OF BUTTERFLY PEA (CLITORIA TERNATEA L) WITH VARIABLES pH-TEMPERATURE AND CONCENTRATION FOR FOOD COLORING Bambang Sugiarto; Yustin Rirung; Anita Nur Ardiyani; Zubaidi Achmad
Techno LPPM Vol 8, No 1 (2022)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

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Abstract

Anthocyanins are chemical compounds contained in a plants. Anthocyanin pigments are water soluble and have pink, red, purple, blue, and yellow colors. Anthocyanins act as a natural food coloring in the form of dry powder or concentrated liquid. The production of anthocyanins from butterfly pea as a natural dye is currently not maximized yet. The anthocyanin extraction process in this study was carried out by heating the butterfly pea using aquadest as a solvent. The purpose of this study is to find the optimum conditions for extracting anthocyanins from butterfly pea, to learn the effect of temperature and pH on the absorbance and color values of the butterfly pea extract with distilled water, as well as its application as a natural dye in food. In this study, it was found out that the optimum concentration was obtained at a ratio of 15 grams:500 ml (weight of butterfly pea:solvent volume) at pH 4. This proves that the concentration will increase along with the increase in the absorbance value. The optimum concentration value occurs at a temperature of 60°C. While the lowest transmittance value was obtained in the sample with a ratio of 15 grams: 500 ml (weight of telang flower: volume of solvent) at pH 4 and a temperature of 60°C. This proves that the transmittance value is inversely proportional to the concentration value. The butterfly pea extract that obtained at pH 4 produced a bluish purple color, pH 5 produced a purplish blue color, pH 6 produced a light blue color, pH 7 produces a blue color, pH 8 produces a bluish green color, and pH 9 produces a green color.
Multiple Deformation of Jokotuwo Fault Zone, East Jiwo Hill, Bayat, Klaten, Central Java Achmad Rodhi; Sutarto Sutarto; Sutanto Sutanto; Sapto Kis Daryono
Techno LPPM Vol 8, No 2 (2022)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

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Jokotuwo fault zone was first mentioned as the sinistral transpression Jokotuwo fault by Jatmika Setiawan (2002). The trending of fault zone can be traced on four directions. The first direction is ENE –WSW in northern part of Jokotuwo hill to Konang hill. The second direction is E – W in southern part of Jokotuwo hill to southern part of Semangu hill. The third direction is NNW – SSE in central part of Jokotuwo hill to Temas hill, and the fourth direction is NE – SW in central part Jokotuwo hill to Gunung Gajah hill. The fault zone area show evidence for four successive structure episodes. The first generation (D1) is deformation in northern part of Jokotuwo hill to the Rondonom hill. This zones is manifested by a variety of structures for well-developed mylonite foliations. The second generation (D2) is deformation in southern part of Jokotuwo hill to southern part of Semangu hill. This zone is manifested by shearing structure for cataclasite flow. The third generation (D3) is deformation in central part of Jokotuwo hill to Temas hill. This zone is manifested by a variety of structures, which may include drag folds,  fault plane,and fault breccia. The fourth generation (D4) is deformation in central part of Jokotuwo hill to Gunung Gajah hill. This zone  is manifested by a variety of structures, which may include fault plane, and fault breccias. The earliest structures in the Eastern Jiwo hill was generally showed that D1 structures are rotational and non-coaxial in semi-ductile character. The deformation was dextral thrusting involving WNW shortening with a significant component of thrust-parallel slip movement that continued into the Pra-Tertiary Orogeny. The D2 and D3 are rotational and non-coaxial in brittle character. The deformation were sinistral transpressive with a significant component of sinistral-strike slip movement that continued into the Tertiary Orogeny.
Geology And The Correlation Between Geological Control And Nickel Quality In Gag Island, Raja Ampat Islands, West Papua Bambang Kuncoro Prasongko; Agus Harjanto; Muhammad Ghifary Askaria
Techno LPPM Vol 8, No 2 (2022)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

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The geology of Gag Island, Raja Ampat Islands, West Papua Province is composed of volcanic rocks and ultramafic rocks as carriers of laterite nickel deposits (Supriatna, et al. 1995). The research was conducted by surface mapping supported by drill data, and drill geochemical data. Data collection by surface mapping aims to determine the relationship of geological control to the quality of laterite nickel. The characteristics of laterite nickel deposits are influenced by geological factors in the form of lithology, topography, Drainage drainage, tectonics, and geological structures (Elias, 2002), so that geological control of the quality of laterite nickel deposits needs to be studied further.The research area found 3 rock units in the form of peridotite unit (harzburgite), serpentinite unit, and alluvial deposit unit. The data shows that the highest nickel content is in peridotite (harzburgite) units. In addition, the shape of the land based on the geomorphological aspect shows that in the form of weak wavy hills, laterite deposits are quite well developed and thick. The landform is supported by a relatively sloping slope (0-8 o ) with an undulating morphology and a dendritic Drainage pattern with a content of > 1.5% Ni and a thickness of 9-16 meters, while levels of < 1.5% Ni reach a thickness of 5-22 meters. The geological structure in the morphology is only found in the form of paired joints and filled joints. These joints become an important component in the process of garnierite mineralization as a carrier of Ni.
Geology And Geological Models Of Nickel Laterite Deposit Gag Island, West Waigeo District, Raja Ampat Regency, West Papua Province Agus Harjanto; Bambang Kuncoro Prasongko; Joko Santoso; Waluyo Hadi; Nur Alif Yusuf Putra karlina
Techno LPPM Vol 8, No 2 (2022)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

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The location of the research is on Gag Island, West Waigeo District, Raja Ampat Regency, West Papua Province which is the area of PT. Nickel Gag. Based on the research flow chart, there are 3 main stages, namely data acquisition, data analysis, and synthesis. Physiography Gag Island is part of North Maluku (Northern Moluccas) which is included in the Raja Ampat Group. The drainage pattern found in the study area is the sub-dendritic alteration flow pattern (SDND). Geomorphology in the study area found denudational hills consisting of weak undulating hills D1, strong D2, and strongly eroded valleys D3. Lithology in the study area consists of 3 rock units, namely peridotite unit (Jp), dunite unit (Jd), and serpentinite unit (Js). The geological structure in the study area consists of the left horizontal fault of Gag 1 and 2, the right horizontal fault of Gag, paired joints, and veins. The geological model of Gag Island nickel laterite deposit consists of a bedrock model that affects the quality of nickel laterite deposits with a grade of 2-1.8% in harzburgite and dunite rocks; a slope model that affects laterite thickness with very gentle-slightly steep slopes >22 meters thick on harzburgite lithology; the geological structure model that influences the permeability of the bedrock with the presence of garnierite and chrysoprase mineralization in the fracture and help the leaching process. The exploration model is an application or application of a scientifically based geological model, besides that the exploration model is used as a command in finding exploration targets. Geological clues are used as an approach to search for nickel laterite deposits in the form of indications of flow patterns, geomorphology, lithology, geological structures, magmatogenic, and surrounding relationships.
Turmeric Dryer (Curcuma domestica Valet) Using a Vacuum Oven Zubaidi Achmad
Techno LPPM Vol 8, No 2 (2022)
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

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Abstract

Turmeric (Curcuma domestica Valet), known as Curcuma longa, is a type of spice that is well known among Indonesians. Turmeric contains a variety of compounds such as curcumin, which is sensitive to high temperatures. It is possible to conduct further research to improve drying outputs based on the curcumin concentration in turmeric. This study aims to establish the optimum conditions for drying turmeric (Curcuma Domestica Valet) in a vacuum oven with variable such as pressure, temperature, and drying duration. This study uses turmeric that has been peeled, rinsed, thinly sliced, and weighed around 15 grams before being tested for water content and initial curcumin content. The turmeric is dried in a vacuum oven, and after one hour the dried turmeric is weighed and its water content and curcumin contents are analyzed. Based on the results of this study, the optimum condition for drying in a vacuum oven are at a pressure of 0,5013 Atm with a water content of 71,78% and a curcumin content of 1,54%, as well as at a temperature of 70 oC with a water content of 33,20% and a curcumin content of 2,64%.

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