Study on Treatment of Organic Wastewater with Modified Bentonite Adsorbent

Batch experiments have been studied to remove methylene blue dye (MB) from aqueous solution using modified bentonite. The modified bentonite was synthesized by replacing exchangeable calcium cations in natural bentonite with cationic surfactant cetyl trimethyl ammonium bromide (CTAB). The characteristics of modified bentonite were studied using different analysis such as Scanning electronic microscopy (SEM), Fourier transform infrared spectrometry (FTIR) and surface area. Where SEM shows the natural bentonite has a porous structure, a rough and uneven appearance with scattered and different block structure sizes, while the modified bentonite surface morphology was smooth and supplemented by a limited number of holes. On other hand, (FTIR) analysis that proved NH group aliphatic and aromatic group of MB and silanol group are responsible for the sorption of contaminate. The organic matter peaks at 2848 and 2930 cm-1 in the spectra of modified bentonite which are sharper than those of the natural bentonite were assigned to the CH2 scissor vibration band and the symmetrical CH3 stretching absorption band, respectively, also the 2930 cm-1 peak is assigned to CH stretching band. The batch study was provided the maximum removal efficiency (99.99 % MB) with a sorption capacity of 129.87 mg/g at specified conditions (100 mg/L, 25℃, pH 11 and 250rpm). The sorption isotherm data fitted well with the Freundlich isotherm model. The kinetic studies were revealed that the sorption follows a pseudo-second-order kinetic model which indicates chemisorption between sorbent and sorbate molecules.

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An innovative process for simultaneous carbon and sulfur removal treating high strength sulfate laden organic wastewater

Biomedical Engineering and Environmental Engineering ◽

10.2495/icbeee130511 ◽

2014 ◽

Author(s):

Chunshuang Liu ◽

Yadong Guo ◽

Chaocheng Zhao

Keyword(s):

Sulfur Removal ◽

High Strength ◽

Innovative Process ◽

Organic Wastewater

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Efficient Collection of Energy from Organic Wastewater

JAPAN TAPPI JOURNAL ◽

10.2524/jtappij.59.675 ◽

2005 ◽

Vol 59 (5) ◽

pp. 675-680

Author(s):

Masaharu Yamashita

Keyword(s):

Organic Wastewater

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Fuel Gas Production from Organic Wastewater by Hydrothermal Gasification Treatment Using Catalyst

JAPAN TAPPI JOURNAL ◽

10.2524/jtappij.71.598 ◽

2017 ◽

Vol 71 (6) ◽

pp. 598-604

Author(s):

Nobuyuki Matsumoto

Keyword(s):

Gas Production ◽

Fuel Gas ◽

Organic Wastewater

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PROSES PENGOLAHAN LIMBAH ORGANIK SECARA KOAGULASI DAN FLOKULASI

Jurnal Rekayasa Lingkungan ◽

10.29122/jrl.v4i2.1861 ◽

2018 ◽

Vol 4 (2) ◽

Author(s):

Indriyati Indriyati

Keyword(s):

Waste Water ◽

Soya Bean ◽

Diffi Cult ◽

Dark Colour ◽

Organic Wastewater

Soya bean sauce waste water is an high organic wastewater and has dark colour, therefore it is diffi cult to degrade it biologically. Base on as mentioned above, it is tried to process it with coagulation and fl okulation use Alumunium sulphate and PAC which is added to wastewater with several dosis variation of Alumunium sulphate: 100, 200, 300. 250, and PAC with dosis 50, 100, 150, 200 ppm. Experiment result shows the experiment which use a match Alumunium sulphate and PAC as coagulant could give a good quality of processing and suitable with the treshhold of wastewater. The application of fl okulan Aquaklir 240 could help the performance of coagulan that can be seen from the fl oc size form.Key words : fl occulation, coagulation.

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