Investigation of Hose Dyeing Industry Waste Water Treatment Using Jar-Test

Author(s):  
Esra Billur Balcioglu ◽  
Sevgi Günes Durak
1983 ◽  
Vol 15 (8-9) ◽  
pp. 233-246 ◽  
Author(s):  
L Martensson ◽  
B Frostell

A 40 1 tank reactor, filled to 3 % (v·v−1) with a small size (5-25µm) carrier material and equipped with a mechanical mixer, was used to create a sludge bed system for anaerobic waste water treatment. Solids leaving the tank with the effluent were recycled to the tank from an external settler. Two different substrates were used, fodder molasses diluted with tap water and beet sugar factory waste water. Influent concentrations were 9.3 g COD·1−1 and 4-7 g COD·1−1 respectively, and treatment was performed at 35-37 °C. With the synthetic molasses waste water, an organic load of 5-6 kg COD·m−3·d−1 could be tolerated, with the sugar industry waste water 25 kg COD·m−3·d−1. The difference in loading capacity was ascribed to different types of sludges formed, the molasses waste water resulting in a much more bulky sludge and a lower attainable volatile suspended solids concentration. It was concluded that much care must be exercised before designing sludge bed systems for high loads with unhydrolyzed waste waters.


2010 ◽  
Vol 22 (1-3) ◽  
pp. 182-186 ◽  
Author(s):  
Emna Ellouze ◽  
Sami Souissi ◽  
Amel Jrad ◽  
Raja Ben Amar ◽  
Abdelhamid Ben Salah

2012 ◽  
Vol 3 (6) ◽  
pp. 5-7
Author(s):  
Valentinas Gerasimovas ◽  
Robertas Urbanavičius

To protect environment from industrial pollution, strict requirements for waste water treatment are imposed. The purpose of research is to establish an optimal ratio of saturated liquid and meat industry waste water. Research included JCC “Traidenis” waste water treatment system installed in JSC “BHJ Baltic”. Investigations into treated waste water indicated that an optimal ratio of waste water and saturated liquid was 2/1 under duration time of 8 minutes. Efficient waste water treatment made 86% and the ratio of waste water and saturated liquid was 2/1. Santrauka Siekiant apsaugoti gamtą nuo pramoninės taršos, nuotekų valymui keliami vis didesni reikalavimai. Darbo tikslas – nustatyti optimalų skysčio ir oro emulsijos ir mėsos pramonės nuotekų santykį. Nuo skysčio ir oro emulsijos ir nuotekų santykio priklauso nuotekų valymo įrenginių kaina ir eksploatacijos išlaidos. Jei bus pasirinktas netinkamas santykis, nuotekų valymo įrenginiams reikės daugiau priežiūros, o tam prireiks papildomų išlaidų. Tyrimams atlikti pasirinkta UAB „Traidenis“ flotacinė nuotekų valymo sistema, sumontuota UAB „BHJ Baltic“ antrinių žaliavų perdirbimo įmonėje. Atlikus tyrimus nustatyta, kad optimalus skysčio ir oro emulsijos ir nuotekų santykis buvo 2:1. Esant tokioms sąlygoms, pasiektas 86 % valymo efektyvumas.


2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Mathew I Aho ◽  
Jonah C Agunwamba

The study investigated the use of moringa extract and powder on coliform and BOD variation with time. Jar test analysis revealed optimum dosages that were used in the experimentation. Raw and waste water samples were treated separately with the extract and powder at detention periods of 1, 24, 48 and 72 hours respectively. Coliform and BOD values of the water samples which were either flocculated or not were measured. The results revealed that, raw water coliform in excess of 1700cfu/ml and BOD of 78mg/L were reduced to 540cfu/ml and 60mg/L after 72 hours of using moringa extract in the treatment. But the same treatment using particle sizes of the powder indicated poor performance, especially in waste water treatment. The study reveals that moringa oleifera extract is comparatively better than powder in raw and waste water treatment.                                                         Key words - Comparison, moringa extract, powder treatment


Author(s):  
P. Sivaraman

The research aim is to the treatment of industrial dyeing waste water for the analysis of improved water treatment using natural coagulants. For waste water treatment, natural coagulants such as Strychnos potatorum (nirmali seeds) and Eirchorrnia crassipes (water hyacinth) are used. We have test the various properties of dyeing waste water before and after treatment like pH, sulphates, chlorides, total solids, total suspended solids (TSS), total dissolved solids (TDS), acidity, alkalinity, optimum coagulant dosage (jar apparatus), biological oxygen demand (BOD) and chemical oxygen demand (COD) .The test results showed that natural coagulants produce better results when used alone or in conjunction with the chemical coagulant alum. Since the natural coagulant generates less floc, the cost of sludge treatment is reduced. Water hyacinth outperforms nirmali seed in terms of natural coagulants. Natural coagulants may be used to manage and treat the dyeing waste water, anywhere there is an abundance of it.


Author(s):  
Lidwina Adeline ◽  
Bambang Iswanto ◽  
Muhammad Lindu

<p>Berbagai pengembangan proses pengolahan air limbah telah dilakukan untuk mendapatkan hasil pengolahan yang maksimum baik secara fisik, kimia maupun biologi. Dalam penelitian ini telah dilakukan studi pengaruh waktu tinggal atau waktu reaksi dan voltase dalam proses elektrokimia atau elektrokoagulasi air limbah domestik yang berasal dari Gedung Syarif Thajeb (M), Universitas Trisakti, menggunakan reaktor kontinu dan batch. Variasi waktu tinggal proses elaktrokoagulasi pada tegangan 12,5 VDC menggunakan reaktor kontinu dilakukan mulai dari 1; 3,6; 4; 4,9; 10,1; dan 57,2 menit dan satu sampel untuk setiap perlakuan waktu tinggal dibuat blanko tanpa dilewatkan reaktor elektrokoagulasi untuk penentuan COD awal atau inlet. Air keluar reaktor kemudian diaduk menggunakan alat jar test pada dua tahap, tahap aduk cepat pada 200 rpm selama 1 menit dan aduk lambat 20 menit pada kecepatan 25-30 rpm, lalu sampel didekantasi selama 2 jam kemudian cairan bening diukur nilai COD dengan metode spektrofometer dan TSS dengan gravimetrik. Diperoleh penyisihan COD mulai 55% - 73 % dengan COD inlet bervariasi 141 mg/L – 432 mg/L dan TSS dalam air dekanter  2 – 50 mg/L dan untuk sampel blanko 10 – 143 mg/L.  Elektrokoagulalsi pada reaktor batch dengan waktu reaksi 0; 10; 20; 30; 40 dan 60 menit dilakukan pada voltase  2, 3 dan 4 VDC, dan arus terpakai  0,1 – 0,63 A dengan pengadukan dan waktu decanter sama seperti perlakuan kontinu dan pH air dijaga 6,8-7 dan besarnya penurunan COD diamati  untuk ketiga variasi voltase tidak terjadi perbedaan. Konsentrasi COD turun dengan cepat setelah proses elektrokoagulasi selama 10 menit pertama dengan kisaran 85% untuk ketiga voltase tersebut dan penurunan COD turun secara perlahan untuk waktu elektrokoagulasi setelah 10 menit dan pada elektrokoagulasi 60 menit COD tersisihkan sebesar 93-95%, dengan COD awal 541 mg/L. </p><p>Keywords: Waste Water Treatment, Electrocoagulation, Continuous and Batch System, Voltage, COD </p>


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