کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6581857 | 456348 | 2016 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Control structure design for resource recovery using the enhanced biological phosphorus removal and recovery (EBP2R) activated sludge process
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کلمات کلیدی
WWTPτIτcASM2dBSM1SBRsRTRASCASPBRTCODPAOEBPRVFAPHAHRTIMCCFSPolyphosphate accumulating organisms - ارگانیزم های تجمع پلی فسفاتVolatile fatty acids - اسیدهای چرب فرارControl action - اقدام کنترلdissolved oxygen - اکسیژن محلولWastewater treatment plant - تصفیه خانه فاضلاب Wastewater treatment - تصفیه فاضلابchemical oxygen demand - تقاضای اکسیژن شیمیاییEnhanced biological phosphorus removal - حذف فسفر بیولوژیک پیشرفتهSequencing batch reactor - راکتور بسته توالیSolids retention time - زمان نگهداری جامداتhydraulic retention time - زمان هیدرولیکیContinuous flow system - سیستم جریان مداومPhoto-bioreactor - عکس بیوراکتورconventional activated sludge - لجن فعال معمولیControlled variable - متغیر کنترل شدهManipulated variable - متغیرهای دستکاری شدهProcess modeling - مدل سازی فرآیندtotal nitrogen - نیتروژن کاملCod - کادوtotal chemical oxygen demand - کل تقاضای اکسیژن شیمیاییTotal phosphorus - کل فسفرinternal model control - کنترل مدل داخلی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Control structure design for resource recovery using the enhanced biological phosphorus removal and recovery (EBP2R) activated sludge process Control structure design for resource recovery using the enhanced biological phosphorus removal and recovery (EBP2R) activated sludge process](/preview/png/6581857.png)
چکیده انگلیسی
Nowadays, wastewater is considered as a set of resources to be recovered rather than a mixture of pollutants that should be removed. Many resource recovery schemes have been proposed, involving the use of novel technologies whose controllability is poorly studied. In this paper we present a control structure for the novel enhanced biological phosphorus removal and recovery (EBP2R) process, which is currently under development. The aim of the EBP2R is to maximize phosphorus recovery through optimal green micro-algal cultivation, which is achieved by controlling the nitrogen to phosphorus ratio (N-to-P ratio) fed to the algae. Process control structures are developed for a sequencing batch reactor (SBR) and a continuous flow reactor system (CFS). Results, obtained using the Benchmark Simulation Model No. 1 (BSM1) dynamic input disturbance time series, suggest that the SBR can maintain a stable N-to-P ratio in the effluent (16.9 ± 0.07) and can recover about 72% of the influent phosphorus. The phosphorus recovered by the CFS is limited by the influent nitrogen (65% of the influent phosphorus load). Using the CFS configuration the effluent N-to-P ratio cannot be effectively controlled (16.45 ± 2.48). Therefore, it is concluded that the SBR is the most effective reactor configuration for the EBP2R process. Importantly, the designed control structures rely on control loops that do not require chemical dosing for nutrient management, thereby reducing the environmental footprint of the EBP2R process. The proposed control strategies can be applied to other phosphorus recovery schemes where short sludge age EBPR systems play an important role.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 296, 15 July 2016, Pages 447-457
Journal: Chemical Engineering Journal - Volume 296, 15 July 2016, Pages 447-457
نویسندگان
Borja Valverde-Pérez, José Manuel Fuentes-MartÃnez, Xavier Flores-Alsina, Krist V. Gernaey, Jakob Kjøbsted Huusom, Benedek Gy. Plósz,