Judul: IPB (Bogor Agricultural University)
Abstrak: Rumah sakit kelas A, B, C dan D menghasilkan limbah yang sebelum dibuang, terlebih dahulu diolah dalam IPAL. Penelitian nini bertujuan untuk mempelajari efektivitas pengolahan limbah cair rumah sakit, khususnya di DKI Jakarta. Secara rinci bertujuan untuk (1) mengetahui efektivitas IPAL, (2) mengkaji parameter limbah yang penting untuk dipantau di masa mendatang, (3) mennganalisis hubungan kinerja rumah sakit dalam penanganan limbah cair rumah sakit dengan kualitas limbah cair rumah sakit, dan (4) efektivitas biaya pengolahan.
Keyword: Hospital liquid waste processing unit, Strategi pengelolaan limbah, Teknologi pengolahan limbah, Landasan hukum limbah rumah sakit, Uji korelasi spearman rank

Judul: Analisis Ekonomi Pengelolaan Limbah Cair Laboratorium Kampus Dramaga IPB
Abstrak: Institut Pertanian Bogor (IPB) merupakan salah satu kampus yang mengimplementasikan konsep green campus untuk pembangunan berkelanjutan. Pengelolaan limbah cair laboratorium IPB saat ini sebagian besar belum mengolah limbah cair yang dihasilkan. Penelitian ini bertujuan untuk (1) Pemetaan status pengelolaan limbah cair laboratorium Kampus Dramaga IPB sesuai indikator UI GreenMetric, (2) Identifikasi faktor penyebab dari kedudukan status pengelolaan limbah cair Kampus Dramaga IPB, (3) Analisis ekonomi pembangunan IPAL di laboratorium Kampus Dramaga IPB. Metode yang digunakan dalam penelitian ini yaitu analisis deskriptif, skala likert dan Extended Cost Benefit Analysis. Hasil penelitian menunjukkan penilaian UI GreenMetric pembuangan limbah cair laboratorium berada pada pilihan pertama yaitu pembuangan limbah cair dialirkan langsung ke perairan. Penyebab kedudukan status penilaian pembuangan limbah cair IPB masih rendah yaitu aspek finansial dengan bobot skor sebesar 3,57. Perhitungan analisis biaya manfaat pembangunan IPAL di Departemen Kimia diperoleh nilai NPV sebesar Rp. 14.020.278 yang berarti NPV > 0. Nilai Net B/C yang diperoleh sebesar 3,49 yang menunjukkan Net B/C > 1. Nilai IRR didapatkan sebesar 45%. Hasil Extended Cost Benefit Analysis menunjukkan bahwa pembangunan IPAL layak untuk dilaksanakan pada tingkat departemen., IPB University is one of the campus that implements the green campus concept as a form of supporting sustainable development. Currently, most of IPB's laboratory liquid waste management has not processed the generated liquid waste. This study aims to (1) Mapping the status of wastewater management at IPB University according to the UI GreenMetric indicator, (2) Identifying the causal factors of the status of liquid waste management at IPB University, (3) Economic analysis of Waste Water Treatment Plant (WWTP) development in the Laboratory of IPB University. The method used to answer this research is descriptive analysis, Likert scale and Extended Cost Benefit Analysis. The results show the UI GreenMetric assessment of laboratory liquid waste disposal is in the first option, namely the disposal of liquid waste flowing directly into the waters. The cause of the position of the status of IPB's liquid waste management is still low, namely the financial aspect with a weighted score of 3.57. Calculation of the cost-benefit analysis of WWTP construction obtained an NPV value of IDR 14.020.278 which means that NPV > 0. The Net B/C value obtained is 3,49 which indicates Net B/C value > 1. The IRR value obtained is 45%. Extended Cost Benefit Analysis result shows that the WWTP construction is feasible to be carried out at the departemen level.
Keyword: Extended Cost Benefit Analysis, IPAL, skala likert, UI GreenMetric

Judul: Penentuan Nilai Eigen dan Vektor Eigen dari Matriks Tridiagonal 2-Toeplitz dengan Pendekatan Polinomial Chebyshev
Abstrak: The eigenvalues and eigenvectors of a matrix can be determined by finding its characteristic polynomials. The characteristic polynomials of a tridiagonal 2-Toeplitz matrix is shown to be closely connected to polynomials which satisfy the Chebyshev recurrence relationship. If the order of the matrix is odd, then the eigenvalues are found explicitly in terms of the Chebyshev zeros and the eigenvectors are found in terms of the polynomials satisfying the recurrence relationship. For even ordered matrices, the situation is more complicated. The problem in these cases is that although the Chebyshev recurrence formula is still applied, its initial values are not generating Chebyshev polynomials
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