Anaerobic Dynamic Membrane Bioreactor Development to Facilitate Organic Waste Conversion to Medium-Chain Carboxylic Acids and Their Downstream Recovery

نویسندگان

چکیده

Platform chemicals such as medium-chain carboxylic acids (MCCAs) can be produced from organic waste streams via chain elongation in anaerobic mixed-culture bioreactors. A product recovery system is needed to collect MCCAs the bioreactor effluent. Membrane-based liquid–liquid extraction, most commonly used approach, requires suspended solids removal effluent avoid membrane fouling. An dynamic (AnDMBR) was developed evaluate MCCA production brewery and prefermented food produce a permeate with low facilitate downstream recovery. The AnDMBR employed an inexpensive stainless-steel mesh support material for development of biofilm or membrane, which responsible solids–liquid separation. quality average total (TSS) concentration 0.12 g L–1, while TSS two orders magnitude higher (21.6 L–1). maximum efficiency ?99% achieved good sustained over 200 days without fouling control cleaning material. In addition separation, substantial fraction biological activity AnDMBR. relative Clostridiales, determined by 16S rRNA sequencing, correlated (20.0 ± 4.9%) than biomass (5.2 2.7%) bioreactor. This observation consistent data concentrations were significantly (p = 8.2 × 10–5) that bioreactor, suggesting contributed elongation.

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

Development of Membrane Bioreactor to Membrane Electro-bioreactor for Advanced Treatment of Wastewater

Limited available water resources have rendered wastewater reuse an important issue to specialists in most developed countries, today. The current study works on membrane filtration for treatment of industrial wastewater. By comparing the two methods of membrane bioreactor (MBR) and hybrid membrane electro bioreactor (MEBR) processes, it finds that earlier fouling in the membrane occurs in the ...

متن کامل

Development of Membrane Bioreactor to Membrane Electro-bioreactor for Advanced Treatment of Wastewater

Limited available water resources have rendered wastewater reuse an important issue to specialists in most developed countries, today. The current study works on membrane filtration for treatment of industrial wastewater. By comparing the two methods of membrane bioreactor (MBR) and hybrid membrane electro bioreactor (MEBR) processes, it finds that earlier fouling in the membrane occurs in the ...

متن کامل

Impact of Coagulant and Flocculant Addition to an Anaerobic Dynamic Membrane Bioreactor (AnDMBR) Treating Waste-Activated Sludge

In this work, we investigated the effects of flocculation aid (FA) addition to an anaerobic dynamic membrane bioreactor (AnDMBR) (7 L, 35 °C) treating waste-activated sludge (WAS). The experiment consisted of three distinct periods. In period 1 (day 1-86), the reactor was operated as a conventional anaerobic digester with a solids retention time (SRT) and hydraulic retention time (HRT) of 24 da...

متن کامل

In-line and selective phase separation of medium-chain carboxylic acids using membrane electrolysis.

We had extracted n-caproate from bioreactor broth. Here, we introduced in-line membrane electrolysis that utilized a pH gradient between two chambers to transfer the product into undissociated n-caproic acid without chemical addition. Due to the low maximum solubility of this acid, selective phase separation occurred, allowing simple product separation into an oily liquid containing ∼90% n-capr...

متن کامل

Conversion of municipal solid waste to carboxylic acids using a mixed culture of mesophilic microorganisms.

Waste biomass was anaerobically converted to carboxylate salts by using a mixed culture of acid-forming microorganisms. Municipal solid waste (MSW) was the energy source (carbohydrates) and sewage sludge (SS) was the nutrient source (minerals, metals, and vitamins). Four fermentors were arranged in series and solids and liquids were transferred countercurrently in opposite directions, which all...

متن کامل

ذخیره در منابع من


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

ژورنال

عنوان ژورنال: ACS ES&T engineering

سال: 2021

ISSN: ['2690-0645']

DOI: https://doi.org/10.1021/acsestengg.1c00273