A sugarcane bagasse carbon-based composite material to decolor and reduce bacterial loads in waste water from 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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Optimization Sugarcane and Paddy Waste as Bio-Composite Material to Absorb Impact Force

E3S Web of Conferences ◽

10.1051/e3sconf/202132807001 ◽

2021 ◽

Vol 328 ◽

pp. 07001

Author(s):

Anis Arendra ◽

Rifky Yusron ◽

Teguh Prasetyo

Keyword(s):

Composite Material ◽

Composite Materials ◽

Sugarcane Bagasse ◽

Significant Influence ◽

Polyester Resin ◽

Environmental Problem ◽

Impact Force ◽

Agricultural Waste ◽

Fibre Direction ◽

Absorb Impact Energy

Agricultural waste such as sugarcane and paddy are common during harvesting to production process. Sometimes they burned after the harvest process, as consequently the environmental problem got multiply. Demand for Composite Material got inflate recently, because they are lighter and stronger than Polyethylene Plastic. Filler in composite materials is expensive and requires precise design. The aim of this research is to create cheap and eco-friendly composite materials, besides raised value of agricultural waste. The composite material using sugarcane bagasse as fibre, paddy chaff powder applied as filler and polyester resin as matrix. In this study, we varied the fibre direction with composition of sugarcane bagasse and paddy chaff powder. In this research fibre direction has three levels they are 0, 45 and 90 degrees. Composition between sugarcane bagasse, paddy chaff powder and polyester resin ratio has three levels they are 15:15:70, 12.5:12.5:75 and 10:10:80. ANOVA test shown fibre direction has significant influence to ability of the material to absorb impact energy 78.14 percent than fibre composition 12.10 percent. The highest impact absorb value is 0.3 degrees Joule on composition ratio paddy chaff: sugarcane: polyester resin is 15:15:70 and 45 degrees fibre direction.

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

ASEAN Journal on Science and Technology for Development ◽

10.3125/asean.v23i3.420 ◽

2007 ◽

Vol 23 (3) ◽

Cited By ~ 2

Author(s):

AL Ahmad ◽

SW Puasa ◽

S Abiding

Keyword(s):

Waste Water ◽

Textile Industry ◽

Crossflow Ultrafiltration

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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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