The Effects of Gradient Velocity and Detention Time to Coagulation – Flocculation of Dyes and Organic Compound in Deep Well Water

Lindu, Muhamad

doi:10.22146/ijc.21616

Cited by 3 publications

(2 citation statements)

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“…Dalam variasi itu berhasil menyisihkan TSS 89% dan turbidity 93%. Sedangkan hasil penelitian yang dilakukan (Lindu, 2010) menggunakan reaktor koagulasi flokulasi dengan baffle channel dan menggunakan koagulan alum mendapatkan efisiensi penyisihan TSS 88,89% dan turbidity 77,14%.…”

Section: Debit Optimal Pengolahanunclassified

Penyisihan Total Suspended Solid (Tss) Air Sungai Dengan Hidraulis Koagulasi Flokulasi

2019

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Metode pengolahan yang dapat diterapkan untuk menyisihkan Total Suspended Solids (TSS) dan turbidity pada air sungai salah satunya adalah hidraulis koagulasi flokulasi. Kelebihan dari pengaduk hidraulis, diantaranya waktu detensi yang singkat, tidak memerlukan energi listrik, dan tidak menghasilkan emisi. Parshall flume dan baffle channel merupakan pengaduk yang menggunakan loncatan hidraulis (hydraulic jump) dan tumbukan air dengan sekat. Reaktor parshall flume yang digunakan memiliki ukuran lebar leher 2,54 cm, sedangkan baffle channel berkapasitas 120 liter dengan 75 sekat. Variasi variabel yang digunakan diantaranya debit 8, 10, 12 L/menit, dosis koagulan Alum 70, 80, 90, 100, 110 mg/L, dan waktu pengendapan 60, 90, 120 menit untuk mengetahui pengaruh terhadap penyisihan TSS dan turbidity. Efisiensi penyisihan kandungan TSS 84% dan turbidity 93% didapatkan pada debit 8 L/menit, dosis koagulan 80 mg/L, dan waktu pengendapan di bak penampung 120 menit. Berdasarkan hasil yang diperoleh dan analisis statistik bahwa debit, dosis koagulan, dan waktu pengendapan mempunyai korelasi dan pengaruh terhadap efisiensi penyisihan.

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Section: Debit Optimal Pengolahanunclassified

Penyisihan Total Suspended Solid (Tss) Air Sungai Dengan Hidraulis Koagulasi Flokulasi

2019

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“…Several ways have been done to overcome dye waste, one of which is adsorption [2], coagulation [3], and ozonation [4]. However, the dye is only adsorbed in the adsorption method without being degraded, released, and becoming a secondary pollutant.…”

Section: ■ Introductionmentioning

confidence: 99%

Preparation of Iron-Doped SiO<sub>2</sub>/TiO<sub>2</sub> Using Silica from Sugarcane Bagasse Ash for Visible Light Degradation of Congo Red

Hikmah

Agustiningsih²,

Nuryono³

et al. 2021

Indones. J. Chem.

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Iron(III)-doped SiO2/TiO2 composite (SiO2/TiO2-Fe) has been prepared from sugarcane bagasse ash for photocatalytic degradation of Congo Red. This research was initiated by preparing SiO2 from sugarcane bagasse ash through a sol-gel method. The SiO2/TiO2-Fe was obtained by mixing SiO2 gel with TiO2-Fe sol which was produced with titanium tetraisopropoxide (TTIP) as precursor and FeCl3·H2O as the dopant source. Dopant concentration was varied by 0, 1, 3, 5, 7% (w/w). The prepared materials were characterized by FT-IR, XRD, SR-UV, XRF, SAA, and SEM-EDX. The photocatalytic activity was evaluated for Congo Red degradation in a closed reactor under visible light illumination. The degradation yield was determined by the UV-Visible spectrophotometry method. Results showed that SiO2 was successfully extracted from bagasse ash with a silica content of 90.87%. The SiO2/TiO2-Fe composite was successfully prepared with the bandgap energy value (Eg) decreasing as the dopant concentration increased. The optimum Eg of 2.63 eV was obtained at the concentration of Fe was 5%. Under that condition, the SiO2/TiO2-Fe photocatalyst degraded Congo Red solution by 98.18 % under visible light at pH 3 with a mass of 30 mg for 90 min. The SiO2/TiO2-Fe composite is expected to be a photocatalyst material candidate for dye wastewater treatment.

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MSWT-01, an alternative in combining Production Based Education (PBE) and student CSR program in Polman

Ananto¹,

Setiawan²,

Darman³

2014

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. MSWT-01, Mobile Surface Water Treatment, producing 1m 3 per hour, is an alternative for providing clean water in flood disaster areas, and was developed at Bandung State Polytechnic for Manufacturing (Polman) as a part of institution research project. The combination of cartridge or membrane technology such as carbon block, MF, UF and filtration media is used for this machine, instead of coagulation-flocculation with chemical addition, due to emergency purposes related with its treatment processing time. The idea is that MSWT could be combined with Production Based Education (PBE) concept in Polman as a vocational education institution and students 'CSR', students social activities. With the number of implementation trials in real flood area condition, MSWT will be developed further based on the technical output result. The manufacturing process for improving or adding necessary features could be implemented as a student's project in PBE system. This might be an ideal combination alternative for such vocational institution that students get the product media for their PBE program and implement their work as a defined social activity. They will learn and experience related technical matters and more social interactions with the people and other disaster stakeholder as well.

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The Effects of Gradient Velocity and Detention Time to Coagulation – Flocculation of Dyes and Organic Compound in Deep Well Water

Cited by 3 publications

References 0 publications

Penyisihan Total Suspended Solid (Tss) Air Sungai Dengan Hidraulis Koagulasi Flokulasi

Penyisihan Total Suspended Solid (Tss) Air Sungai Dengan Hidraulis Koagulasi Flokulasi

Preparation of Iron-Doped SiO<sub>2</sub>/TiO<sub>2</sub> Using Silica from Sugarcane Bagasse Ash for Visible Light Degradation of Congo Red

MSWT-01, an alternative in combining Production Based Education (PBE) and student CSR program in Polman

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