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Development of Solar Chlorinator for Clean Water Disinfection for Communities Beny Suyanto; Denok Indraswati
Aloha International Journal of Health Advancement (AIJHA) Vol 4, No 2 (2021): February
Publisher : Alliance oh Health Activists (AloHA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33846/aijha40204

Abstract

This study aims to improve the performance of digital solar chlorinators to disinfect clean water for the community. In this experimental study, a digital solar chlorinator was made for disinfection of clean water by testing performance with variations in distances of 0 m, 500 m and 1000 m, resulting in residual chlorine < 0.7 ppm and E coli bacteria. Chlorinator specifications are: solar cell panels; DC Converter stabilizer and Digital current voltmeter; Control solar cell system and battery changer; battery; adjustable velocity; peristaltic pump (pump chlor) using geer bok; control switch internet system or internet controller semiconductor (ICS) that uses a modem; submersible pumps; digital peristaltic pump water flow regulator which is assembled in the system. Performance of chlorinator peristaltic pump discharge: 45 liters/day (85 gram/day of chlorine) at source water flow rate of 1.1 liters/second, the results obtained: residual chlorine at distances of 0 m, 500 m and 1000 m respectively: 0.56 ppm, 0.43 ppm and 0.28 ppm (meets the regulation of the minister of health). It is necessary to further investigate how long the level of resistance, service life, operation and maintenance of the chlorinator is needed. The performance of the solar cell chlorinator with digital devices makes it easier to operate and maintain and can be applied to various discharges. Keywords: digital solar chlorinator; chlorine; water sources; E coli
Hygiene and Sanitation of Fresh Cow Milk Quality in Getasanyar, Sidorejo, Magetan Wanda Kharismatulfaiza; Djoko Windu P. Irawan; Karno Karno; Denok Indraswati; Aries Prasetyo
Health Notions Vol 6, No 10 (2022): October
Publisher : Humanistic Network for Science and Technology (HNST)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33846/hn61005

Abstract

Milk is a source of animal protein which is necessary for the growth of the human body. Fresh milk from healthy cows is obtained by using the milking method. This study aims to determine the hygiene of cage sanitation and equipment sanitation, milking behavior, and quality of fresh cow's milk in Getasanyar Village, Sidorejo District, Magetan Regency. This research is descriptive. Sampling technique with purposive sampling design. Collecting data using observation and interviews laboratory examination. The results showed that the sanitation of cattle pens for farms 1 and 2 (40%) was good (60%) bad, and farm 3 (75%) was good (25%) bad. Sanitation of farm equipment 1 and 2 (60%) good (40%) bad, farm 3 (75%) good (25%) bad. The behavior of dairy farms 1 and 2 has bad behavior, farm 3 has good behavior. The physical quality of milk does not change. The chemical quality pH and temperature of fresh cow's milk 1, 2, and 3 did not meet the requirements. The microbiological quality of the germ numbers of fresh cow's milk on farms 1, 2, and 3 met the requirements, and Escherichia coli in fresh cow's milk on farms 1 and 2 did not meet the requirements, farm 3 met the requirements. Sanitary hygiene with milking behavior on milk quality does not meet the requirements. Keywords: fresh cow milk; hygiene; sanitation; quality