stability of aerobic granular biomass treating the effluent from a seafood industry

نویسندگان

a. val del río

m. figueroa

a. mosquera-corral

j.l. campos

r. méndez

چکیده

the aerobic granular systems represent a good alternative to substitute the conventional activatedsludge process in the treatment of industrial effluents due to the lower surface requirements. in this work the effluent from a seafood industry, characterized by a high variability and the presence of residual amounts of coagulant and flocculant reagents, was used to study the development of aerobic granular biomass and its stability. in a first stage with olrs between 2 and 5 kg cods/m3.d the development of aerobic granular biomass was promoted with good physical properties: svi of 35 ml/g tss, density of 60 g vss/lgranule and average diameter of 2.8 mm. in a second stage the continuous change in the olr applied from 3 to 13 kg cods/ m3.d, to simulate the real conditions of the industry, showed that the removal of organic matter was not affected (90%) but the aerobic granules disintegrated. the maximum olr treated in the system without granules disintegration was around 4.4 kg cods/m3.d. the nitrogen removal was 30% (for biomass assimilation) and the maximum ammonia removal was around 65% and depending on the solids retention time, the free ammonia concentration and the average granule diameter.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

stability of aerobic granular biomass treating the effluent from a seafood industry

the aerobic granular systems represent a good alternative to substitute the conventional activatedsludge process in the treatment of industrial effluents due to the lower surface requirements. in this work the effluent from a seafood industry, characterized by a high variability and the presence of residual amounts of coagulant and flocculant reagents, was used to study the development of aerob...

متن کامل

from linguistics to literature: a linguistic approach to the study of linguistic deviations in the turkish divan of shahriar

chapter i provides an overview of structural linguistics and touches upon the saussurean dichotomies with the final goal of exploring their relevance to the stylistic studies of literature. to provide evidence for the singificance of the study, chapter ii deals with the controversial issue of linguistics and literature, and presents opposing views which, at the same time, have been central to t...

15 صفحه اول

Separation Efficiency of Glucose and Maltose from Industrial Effluent by Granular Activated Carbon

This paper describes the performance of Granular Activated Carbon (GAC) to adsorb and separate glucose and maltose solutes from the industrial effluents by adsorption process. In this study, the capability of Granular Activated Carbon (GAC) to adsorb glucose and maltose were experimentally examined. Commercial GAC (mesh 12-20), supplied by Sigma Aldrich company in...

متن کامل

Removal of Dyes from Textile Industry Effluent: A Review

Effluent from the textile industry contains toxic compounds. These compounds contaminate the surface water, thereby making it unfit for irrigation and drinking. Since farmers use water from the rivers for agricultural purposes and the residents of the town, use both the surface and underground water from the same area as potable water, it is quite unsafe to discharge this effluent into water bo...

متن کامل

Reactivation of Preserved Aerobic Granular Sludge Using Palm Oil Mill Effluent

Generation of wastes in the form of palm oil mill effluent (POME) is unavoidable due to increase in oil palm development worldwide. Direct discharge of POME into receiving water bodies is strongly discouraged due to high chemical and biochemical oxygen demand concentrations, respectively. Aerobic granulation technology features microbial aggregates generated following immobilization and cell-to...

متن کامل

the effect of traffic density on the accident externality from driving the case study of tehran

در این پژوهش به بررسی اثر افزایش ترافیک بر روی تعداد تصادفات پرداخته شده است. به این منظور 30 تقاطع در شهر تهران بطور تصادفی انتخاب گردید و تعداد تصادفات ماهیانه در این تقاطعات در طول سالهای 89-90 از سازمان کنترل ترافیک شهر تهران استخراج گردید و با استفاده از مدل داده های تابلویی و نرم افزار eviews مدل خطی و درجه دوم تخمین زده شد و در نهایت این نتیجه حاصل شد که تقاطعات پر ترافیک تر تعداد تصادفا...

15 صفحه اول

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
international journal of environmental research

ناشر: university of tehran

ISSN 1735-6865

دوره 7

شماره 2 2013

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023