The objectives of this research are to study about influence of calcium hypochlorite dosage adjustment on tapioca wastewater chlorination toward efficiency of activated sludge treatment especially at MLVSS profile and percentage of COD removal. This research mainly divided into pre-chlorination and activated sludge treatment. Pre-chlorination taken place for 60 minutes at pH 8. The variation of calcium hypochlorite dosages which used are 58, 59, and 60 mg/L. Pre-chlorination effluent with no free chlorine residual then becomes activated sludge treatment influent. Sampling has done each aeration time interval 0, 2, 4, and 6 hour for analysis of COD and MLVSS content. Research result generally shows that addition of aeration time for each variation of calcium hypochlorite dosage will increase MLVSS and decrease COD content. Smallest value of COD effluent could achieved in the activated sludge treatment with calcium hipochlorite dosage 60 mg/L addition at influent during 4 hours aeration time. Addition of 58 mg/l calcium hypochlorite results highest MLVSS and percentage of COD removal.

Lada merupakan salah satu jenis rempah yang cukup penting, baik ditinjau dari peranannya sebagai penyumbang devisa negara maupun kegunaannya yang khas dan tidak dapat digantikan oleh jenis rempah lainnya. Pada proses pengolahan lada yang masih dilakukan dengan cara yang kurang higienis, risiko produk terkontaminasi oleh jamur selama proses pengolahan lada bubuk masih sangat besar, khususnya jamur xerofilik, yaitu jamur yang mampu tumbuh pada produk kering atau kadar air yang rendah. Penelitian ini bertujuan untuk mengetahui adanya jamur xerofilik pada lada bubuk dan mengetahui spesies jamur xerofilik apa saja yang berpotensi sebagai penghasil toksin pada lada bubuk. Metode yang digunakan untuk pemeriksaan yaitu metode taburan. Sampel lada bubuk di encerkan dengan menggunakan aquades steril, dengan pengenceran 10-1, 10-2, dan 10-3, masing-masing di inokulasikan ke dalam medium DG18 pada cawan petri steril dan diinkubasi selama 5-7 hari. Kemudian di identifikasi secara makroskopis dan mikroskopis. Hasil identifikasi menunjukan lada bubuk terkontaminasi jamur xerofilik. Spesies jamur xerofilik yang terdapat pada lada bubuk yaitu Aspergillus candidus, Aspergillus ochraceus, Aspergillus fumigatus, Eurotium herbariorum, Aspergillus tamarii, Eurotium chevalieri, Aspergillus penicilloides, Aspergillus niger, dan Aspergillus oryzae. Dari 9 spesies jamur yang ditemukan, 6 diantaranya dapat berpotensi sebagai penghasil mikotoksin.

No abstract

Pediculosis is an infection caused Pediculus humanus capitis, Oxyuriasis or enterobiasis or kreminan is an infection caused by pinworms. In 2010 research was conducted by the Department of Parasitology, Faculty of Medicine, University of Indonesia in Jakarta SD Paseban found 19 positive child worms. Study in a boarding school in Tangerang early 2011, 300 students were examined only 9 positive worms. Head of the Center for Environmental Health Engineering & PPM Ministry of Health dr. Hartati Samsudin, MQIH said that based on the survey results, the current Indonesian children suffer from intestinal worms average figure is around 30%. The purpose of this devotion Creating a harmonious relationship between the Community Higher education in an effort to improve the welfare of people in the health field, improving the ability to implement disease control pediculosis. The results of the examination pediculosis done after counseling, so that the students already understand it and understand what is pediculosis, of the 92 students that there were 86 students who signed us check her hair and then we comb using serit if nothing positive was found Pediculus humanus capitis we take and put in pot samples. The test results showed as many as 10 students Pediculus humanus capitis positive.