Crossflow Ultrafiltration for Removing Direct-15 Dye from Waste Water of Textile Industry

Limbah industri tekstil di area pinggir kota Surabaya mempunyai karakteristik perbandingan COD dan BOD = 5.57. Limbah jenis ini sulit untuk dibiodegradasi. Studi ini mempelajari tekonologi elektrokoagulasi untuk mengolah limbah tekstil dengan menurunkan intensitas warna, Total Suspended Solid (TSS) dan Chemical Oxygen Demand (COD). Percobaan batch pada suhu kamar dilakukan untuk mempelajari pengaruh pH, jarak elektroda terhadap penurunan warna,TSS dan COD dan membandingkan biaya operasinya jika menggunakan pengolahan kimia.Effisiensi penurunan tertinggi untuk warna (91.96%), TSS (49.17%), dan COD (29.67%) terjadi pada pH awal 4.0 dan jarak elektroda 2 cm dengan elektroda Al/Al. Waktu optimum penurunan intensitas warna dalah 10 menit. Laju penurunan COD adalah : -dC/dt = 0.0053 C +0.056 , dengan C adalah konsentrasi COD. Jumlah sludge yang dihasilkan daripengolahan elektrokoagulasi 3.4 % lebih kecil dibandingkan menggunakan bahan kimia. Biaya yang digunakan untuk pengolahan dengan elektrokoagulasi 52.35 % lebih murah dibandingkan jika menggunakan koagulasi dengan bahan kimia ( tawas). Kata kunci : elektrokoagulasi, penurunan warna, penurunan TSS, laju degradasi COD, imbah tekstil Abstract Waste water from textile industry which is located in one suburb of Surabaya city as characteristic which the ratio of COD to BOD was 5.57. This type of waste water is difficult to be biodegraded. This study investigated elektrokoagulasi technology to treat textile waste water by removing color, total suspended solid, and Chemical Oxygen Demand. Batch experiment at room temperature was carried out to study the effect of pH, electrode distance for color, TSS and COD removal. This study also tried to compare the operation cost between elektrokoagulasi and chemical processes. The best removal efficiencies by Al electrodes was 91.96 % for color, 49.17 % for TSS and 29.67 % for COD which were under initial pH 4.0 and electrodes distance 2 cm. The optimum operation time for color removal was found 10 minutes.The COD degradation rate was - dC/dt = 0.0053 C +0.056, with C= COD concentration. Sludge result from elektrokoagulasi was 3.4 % less than that by chemical treatment.The operation cost for elektrokoagulasi is 52.35 % less than that for chemical coagulation.

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Aplikasi Koagulan Biji Asam Jawa dalam Penurunan Konsentrasi Zat Warna Drimaren Red pada Limbah Tekstil Sintetik pada Berbagai Variasi Operasi

Jurnal Rekayasa Proses ◽

10.22146/jrekpros.38948 ◽

2018 ◽

Vol 12 (2) ◽

pp. 40

Author(s):

Angela Martina ◽

Dian Santoso Effendy ◽

Jenny Novianty M Soetedjo

Keyword(s):

Waste Water ◽

Central Composite Design ◽

Textile Industry ◽

Ph Value ◽

Production Capacity ◽

Natural Coagulant ◽

Design Expert ◽

Tamarind Seed ◽

Coagulation And Flocculation ◽

Central Composite

A B S T R A C TSince textile industries use a lot of water in their processes, a huge volume of waste water containing dyes are produced by the increase of the production capacity. Coagulation and flocculation are the common processes applied since they can effectively decrease the dye concentration in the waste water. These treatments usually utilize chemical coagulant and flocculant which are expensive and non-biodegradable. In this research, tamarind seed as one of biobased-coagulants was studied and developed to reduce drimaren dark red HF-CD concentration which is used widely in textile industry in the synthetic waste water. The research was designed using Design Expert 7.0.0, Central Composite Design with range of variables as follows: pH (2-7), tamarind seed concentration (1-3 g/L), and dye concentration (20-30 ppm). The result shows a promising application of natural coagulant up to 94.25% decrease of dye concentration in the optimum condition of 3.68 g/L tamarind seed concentration, 25 ppm dye concentration and pH value of 4.5.Keywords: coagulation; dye concentration acid; natural coagulant; tamarind seedsA B S T R A KIndustri tekstil merupakan industri yang banyak menggunakan air dalam proses produksinya sehingga menghasilkan limbah yang mengandung zat warna tekstil dengan volume yang besar. Pengolahan yang umum digunakan untuk mengolah limbah tekstil ini adalah koagulasi dan flokulasi. Metode ini efektif dalam mengurangi konsentrasi zat warna pada air limbah. Koagulan yang digunakan pada penelitian ini adalah koagulan alami yang terbuat dari biji asam jawa. Penelitian ini bertujuan untuk mengetahui kemampuan dan kondisi optimum biji asam jawa sebagai koagulan alami dalam menurunkan konsentrasi zat warna pada limbah tekstil. Limbah tekstil yang digunakan merupakan limbah sintetik zat warna drimaren dark red HF-CD. Rancangan penelitian dibuat menggunakan Design Expert 7.0.0 metode central composite design dengan memvariasikan variabel pH (2-7), dosis koagulan (1-3 g/L), dan dosis zat warna (20-30 ppm). Kondisi terbaik yang didapat dari penelitian diperoleh pada pH 4,5, dosis koagulan 3,68 g/L, dosis zat warna 25 ppm dengan hasil persen penurunan konsentrasi zat warna sebesar 94,29%.Kata kunci: biji asam jawa; koagulasi; koagulan alami; konsentrasi zat warna

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Response Surface Optimization for Waste Water from Textile Industry

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2021.37940 ◽

2021 ◽

Vol 9 (9) ◽

pp. 165-171

Author(s):

Jaspreet Kaur

Keyword(s):

Waste Water ◽

Response Surface ◽

Textile Industry ◽

Dye Removal ◽

Kinetic Studies ◽

Cod Removal ◽

Kinetic Constants ◽

Response Parameter ◽

Response Surface Optimization ◽

Water Response

Abstract: The findings of the study showed that at optimum conditions of the operating parameters i.e., current density = 14.17 mA/cm2 , t = 102 min, and pH = 6.25, 63.41% of COD removal, 90.93% of dye removal and 0.0035 kWh/kg of energy consumption, were observed. Kinetic studies showed that EC based treatment of STW followed first order kinetics and the kinetic constants at 30°C for each response parameter i.e., % COD removal and % dye removal were 0.0205 min-1 and 0.0097 min-1 , respectively. Similarly, at 50°C the kinetic constants for % COD removal and % dye removal were 0.037 min-1 and 0.011 min-1 , respectively. Further, it was also observed that the amount of Al in the treated STW, sludge and scum was observed to be 25.16 mg/l, 0.50778g and 0.06006 g, respectively. Keywords: Waste water, Response Surface plots and optimization

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Decolorization of a textile vat dye by adsorption on waste ash

Journal of the Serbian Chemical Society ◽

10.2298/jsc090724057s ◽

2010 ◽

Vol 75 (6) ◽

pp. 855-872 ◽

Cited By ~ 8

Author(s):

Miodrag Smelcerovic ◽

Dragan Djordjevic ◽

Mile Novakovic ◽

Mirjana Mizdrakovic

Keyword(s):

Waste Water ◽

Textile Industry ◽

Low Cost ◽

Langmuir Model ◽

Order Kinetic ◽

Dyeing Process ◽

Vat Dye ◽

As Adsorption ◽

Heating Station ◽

Physical And Chemical

An adsorption process using cheap adsorbents could be described as a simple, selective and low cost alternative for the treatment of colored waste water compared to conventional physical and chemical processes. In this study the use of a natural waste adsorbent - ash was investigated for the removal of a textile vat dye Ostanthren Blue GCD remaining after the dyeing of cotton textile. The ash obtained as a waste material during the burning of brown coal in the heating station of Leskovac (Serbia) was used for the treatment of waste waters from the textile industry, i.e., waste water after the dyeing process. The effect of ash quantity, initial dye concentration, pH and agitation time on adsorption was studied. The Langmuir model was used to describe the adsorption isotherm. Based on the analytical expression of the Langmuir model, the adsorption constants, such as adsorption capacity and adsorption energy, were found. Pseudo first and second order kinetic models were studied to evaluate the kinetic data.

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Full-scale application of the IAWQ ASM No. 2d model

Water Science & Technology ◽

10.2166/wst.2001.0748 ◽

2001 ◽

Vol 44 (2-3) ◽

pp. 17-24 ◽

Cited By ~ 5

Author(s):

R. Carrette ◽

D. Bixio ◽

C. Thoeye ◽

P. Ockier

Keyword(s):

Waste Water ◽

Decay Rate ◽

Textile Industry ◽

Waste Water Treatment ◽

Treatment Plant ◽

Building Blocks ◽

Reduction Factor ◽

Waste Water Treatment Plant ◽

Industrial Discharge ◽

2D Model

In the framework of the EU-funded TTP-UPM project (Technology Transfer Project - Urban Pollution Management) the waste water treatment plant (WWTP) of Tielt was modelled with the recently issued IAWQ ASM No. 2d model. Up to 41% of the total COD load is originating from a textile industry. A measurement campaign was conducted during a period with industrial discharge and a period with only domestic sewage. The stop of the industrial discharge resulted in a highly dynamic response of the system. Based on an expert-approach the calibration was obtained changing only four parameters (anaerobic hydrolysis reduction factor ηfe, reduction factor for denitrification ηNO3, the decay rate of autotrophs bAUT and the decay rate of the bio-P organism building blocks bPAO, bPHA, bPP). Influent fractionation remains a critical step within the model calibration. A proven procedure to characterise the influent determinants by standard physical chemical analysis failed to assess the influent COD fractions when the textile waste water is discharged to the WWTP. Selected bench-scale experiments, instead, succeeded in providing the adequate influent characterisation accuracy. For characterising the readily biodegradable COD fraction respirometry is to be preferred.

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