Effect of Stirring Time Alum And Phosphate Levels In Liquid Waste Martapura Laundry In Central District. One of the wastes produced is phosphate. Disposal of waste which contains phosphates in the water can cause eutrophication processes in the aquatic environment. Therefore it needs proper methods for treating waste that contains a lot of laundry phosphate compounds that safely discharged into the environment. This study aims to determine the effect of the use of alum and alum stirring time on levels of phosphate in laundry wastewater XXX in Martapura, Banjar.This type of research is shaped Experimental research. Design The study design is randomized pretest-posttest control group design. The sample was liquid waste from the laundry XXX Laundry washing process that represents the entire population of data analysis using One Way ANOVA Test. The result of a decrease in the average levels of phosphate in sequence on each variation of stirring time, ie 92.7%; 99.6%; and 96.7%. The statistical test used is One Way Anova test. Based on an analysis using One Way ANOVA in the treatment group p-value (0.00
Effectiveness Of Rice Husk Ash And Poly Aluminum Chloride In Reducing Exposure Colour Liquid Waste Industry Sasirangan. Sasirangan fabric industry is the textile of industry in Kalimantan Selatan produce wastewater of dyeing cloth sasirangan process that uses water as a primary adjuvant in stage process.The study aims to determine the effectiveness of rice husk ash and Poly Aluminium Chloridereduce levels of dyes in wastewater sasirangan "Oriens Handycraft". This study tested a laboratory scale with dose variation of rice husk ash and Poly Aluminium Chloride for reduced levels of dyes in wastewater sasirangan. The study design is a randomized pretest - posttest control group design. The population of the waste liquid fabric manufacturesasirangan results and samples are the waste from the manufacture of cloth sasirangan which represents the population. This study conduct statistical tests usingKruskal Wallis and Mann-Whitney Test.Theresultsofthestudyof color levels priorto treatment equal to 2,712 PtCo and after treatment ranges from 676.3 to 978.7 PtCo at a dose of 58 grams of rice husk ash; 59 g; 60 g; 61 g; 62 gr and Poly Aluminium Chloride 0.5 gr. For a dose of 58 grams of rice husk ash; 59 g; 60 g; 61 g; 62 gr and Poly Aluminium Chloride 1 g of color levels before treatment and after PtCo 1775 amounted to 227.7 PtCo ranges up to 240 PtCo. Rice husk ash and Poly Aluminium Chloride effective at pH 6.5 - 7. Results of normality test showed abnormal data. Kruskal Wallis test probability value 0.002 <0.05, there is a difference between the average dosing in the control group and the treatment group and the Mann-Whitney Test probability value of 0.009 (0.018 <0.05), the rice husk ash dosing and Poly Aluminium Chloride 1 g more effective than rice husk ash dosing and Poly Aluminium Chloride 0.5 g.Efforts government can do is provide the appropriate policy on effluent quality standards and attention to industrial waste disposal sasirangan. For the industry can manage its waste before waste into the environment. Keywords: SasiranganWaste; Materials coagulant; pH; Dyes
Rancang bangun gravel bed flocculator sebagai proses flokulasi adalah salah satu pengolahan air yang memanfaatkan gerakan air dan media butiran sebagai pengadukan hidrolis yang menghasilkan energi gesek, sehingga dapat mengendapkan flok diantara butiran. Tujuan penelitian ini adalah menguji kemampuan gravel bed dalam pengolahan air sungai. Metode yang dilakukan adalah menghitung rancang bangun reaktor sesuai kriteria desain dengan menetapkan variasi waktu kontak dan gradien kecepatan yang merupakan fungsi dari ukuran media butiran, debit aliran, luas penampang reaktor dan headloss. Bahan yang digunakan terdiri dari drum plastik warna biru kapasitas 200liter, mesin pompa air standar debit (Q) 0,5liter/detik, dan pasir silica. Hasil ujicoba dengan pendekatan perhitungan rancang bangun gravel bed flocculator diperoleh data debit (Q)=0,0005m3/detik; waktu kontak (td)=300detik; gradien kecepatan (G1)=60detik-1; diameter butiran (Db)=0,00195m; tinggi media (Tm)=0,59m menghasilkan penurunan kekeruhan sebesar 97,4% (53NTU menjadi 1,4NTU) dan pH 6,0 menjadi 6,5 memenuhi standar air minum untuk kekeruhan <5NTU dan pH 6,5-8,5. Reaktor ini dapat diaplikasi untuk masyarakat yang tinggal di bantaran sungai.Kata kunci: waktu kontak, gradien, gravel bed, air sungai
Distance of Aerated Tray and Length of Deposition Time in Reducing Iron (Fe) Level in Drilled Well Water. Well bore wijaya street 7 Kelurahan Sungai Paring, Kecamatan Martapura, physically looks yellowish and slightly tasted. Based on the preliminary test of iron content of 3.50 mg / L and pH 4 compared to Republic of Indonesia Minister of Health Regulation No. 32 of 2017, has not met the requirements, namely iron 1.0 mg / L and pH 6.5-8.5. The purpose of this study is to find out the magnitude of the effect of the distance of aeration Tray on decreasing the iron content of borehole water and pH on borehole water. Type of experimental research with Pretest-Postest Without Control Group. The population in this study was all water in the wellbore. The sample of this research is borehole water. Analysis of the effect of variations in height and duration of settling using the Two Way Anova test shows sig. (0.000) <α (0.05). Based on the results of research with the method of aeration Tray can reduce iron content with a percentage of 1 meter 96.28-90.71%, 1.5 meters 81.57-73.57% and 2 meters 71.35-64.64%. This shows that the highest variation in altitude decreases iron content in bore well water, which is 2 meters and the duration of deposition time is 3 hours. It is recommended to treat the water with an aerated tray. You need to add coagulant and sand filters. Variations in height of 2 meters and the duration of deposition of 3 hours can be used as an alternative water treatment.
Penelitian ini bertujuan untuk menentukan dosis optimum koagulan biji kelor dan menghasilkan ketebalan filtrasi karbon aktif dalam penurunan tingkat kekeruhan dan warna hingga memenuhi syarat baku mutu air minum. Metode penelitian yang dilakukan adalah uji jartest koagulan biji kelor dengan variasi dosis 10-80 mg/L, selanjutnya dosis optimum digunakan pada proses koagulasi-flokulasi dan filtrasi dengan variasi karbon aktif granular ketebalan 10-100 cm pada tabung filter diameter 4”. Tingkat kekeruhan diukur dengan turbidimeter dan warna dengan colorimeter. Hasil yang diperoleh sesudah pengolahan untuk tingkat kekeruhan 2 NTU (efisiensi penurunan 95,6%) dan warna 10 TCU (efisiensi penurunan 88,9%). Kombinasi pengolahan ini mampu memenuhi persyaratan kualitas air minum dengan dosis optimum koagulan biji kelor 60 mg/L dan filter karbon aktif dengan ketebalan 100 cm. This study aims to determine the optimum dose of coagulant Moringa seed and produce active carbon filtration thickness decreased turbidity and color levels to meet drinking water quality standard requirements. Research methodology is a jar test moringa seeds with variations coagulant dose 10-80 mg/L, then the optimum dose used in the coagulation-flocculation and filtration with granular activated carbon variations in the thickness of 10-100 cm in diameter filter tubing 4 ". Turbidity levels measured by turbidimeter and colors with a colorimeter. The results obtained after treatment for 2 NTU turbidity level (efficiency 95.6% decrease) and a color of 10 TCU (efficiency 88.9% decrease). Combination treatment is able to meet the quality requirements of drinking water with optimum coagulant dose moringa seed 60 mg/L and an activated carbon filter with a thickness of 100 cm.
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