Kitchen waste hydrolysate enhances sewage treatment efficiency with different biological process compared with glucose

2021 ◽  
Vol 341 ◽  
pp. 125904
Author(s):  
Xuwei Gui ◽  
Zhenlun Li ◽  
Zhengjiang Wang
Keyword(s):  
Biological Process ◽  
Sewage Treatment ◽  
Treatment Efficiency ◽  
Kitchen Waste

Suivi du fonctionnement d'une station d'epuration associant physico-chimie et biofiltration = Metabief (France)

1990 ◽  
Vol 22 (1-2) ◽  
pp. 251-259 ◽  
Author(s):  
R. Pujol
Keyword(s):  
Organic Matter ◽  
Biological Process ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Cold Temperatures ◽  
Biological Sludge ◽  
Physico Chemical ◽  
Total Plant ◽  
Sludge Characteristic

The sewage treatment plant of Metabief (East of France) has been monitored during three weeks in winter 1988. The treatment associates a physico-chemical treatment with a biological process of biofiltration. The first step eliminates about 60 % of the organic matter (COD and BOD). The biofliters improve the treatment removing 60 % of COD influent and 65 % of TSS. The process is efficient (N excepted) under conditions of the experiment but nitrification is limited by cold temperatures (< 10°C). Important results related to biological sludge product are presented (sludge characteristic, microscopic data, sludge production). Power consumption of biofliters represents 70 % of the total plant needs. Adequate control of washing cycles and close survey of numerous movable devices are of the utmost importance to guarantee the proper operating of biofliters.

Bioaugmentation Technology in Comprehensive Chemical Wastewater Treatment of Tianjin TEDA Modern Industrial Park

2013 ◽  
Vol 807-809 ◽  
pp. 1241-1244
Author(s):  
Ying He ◽  
Zhong Xian You ◽  
Yi Jun Ji ◽  
Ya Fei Zhao
Keyword(s):  
Wastewater Treatment ◽  
Organic Pollutants ◽  
Biological Process ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Complete Analysis ◽  
Industrial Park ◽  
Record Data ◽  
Refractory Organic Pollutants

Refractory organic pollutants are wastewaters main pollutants in Tianjin TEDA modern industrial park. For clearing up refractory organic pollutants, we must improve the biological process of the sewage treatment plant. This paper focuses on how to use bioaugmentation technology to process the refractory organic pollutants which comes from wastewater of the district. The paper will record data and complete analysis of treatment effect for improving the biological process of sewage treatment plant and make advices.

Development and Application of ASP Flooding Produced Fluid Demulsifier

2014 ◽  
Vol 556-562 ◽  
pp. 603-606
Author(s):  
Qing Ji Wang
Keyword(s):  
Particle Size ◽  
Crude Oil ◽  
Environmental Pollution ◽  
Oil Recovery ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Sewage Treatment ◽  
Oil Extraction ◽  
Treatment Efficiency ◽  
Asp Flooding

Alkaline/surfactant/polymer (ASP) flooding has been applied to oil extraction in Daqing oilfield in several years. It is a great technology to improve oil recovery after polymer flooding. However, the agent would produce lots of fluid compositions, including a lot of polymer, alkaline and surfactant chemicals, which can improve the output of crude oil but increase the difficulty to disposal, such as fluid emulsion serious, smaller oil bead particle size and higher sewage viscosity and so on. An efficient demulsifier is urgent researched. In the paper, some development and application of common emulsifiers were introduced, including Quaternary ammonium salt of demulsifier, Amine polyether demulsifiercess and Water-oil separation agent Drows-1. It is significance to research the efficient green environmental protection demulsifier, which will decrease environmental pollution and increase sewage treatment efficiency in future.

scholarly journals Proposal of enhanced treatment process based on actual pilot plant for removal of micropharmaceuticals in sewage treatment plants

2019 ◽  
Vol 25 (4) ◽  
pp. 588-596
Author(s):  
Shun-hwa Lee ◽  
Yun-kyung Park ◽  
Miran Lee ◽  
Byung-dae Lee
Keyword(s):  
Activated Carbon ◽  
Removal Efficiency ◽  
Treatment Process ◽  
Adsorption Process ◽  
Biological Process ◽  
Sewage Treatment ◽  
Optimal Treatment ◽  
Activated Carbon Adsorption ◽  
Carbon Adsorption ◽  
Single Process

This study was carried out to increase the treatment efficiency through the improvement of the conventional biological process, and to propose the optimal treatment direction. The optimal treatment conditions were derived based on the results of the spike damage tests in each single process. The removal efficiency of micropharmaceuticals was further increased when an ozone treatment process was added to the biological process compared to the single process. The soil and activated carbon adsorption process was introduced in the post-treatment to remove the micropharmaceutical residues, and the removal efficiency of the pharmaceduticals in the final effluent was more than 85% in spike damage experiment. In particular, the continuous process of biological treatment-ozone-adsorption could ensure the stable treatment of micropharmaceuticals, which had not been efficiently removed in the single process, as it showed more than 80% removal efficiency. Therefore, it is expected that the addition of the ozone oxidation and activated carbon adsorption process to the existing sewage treatment facilities can contribute to the efficient removal of micropharmaceuticals.

Research on Removal Performance of Integrated Biological Aerated Filter to Sewage Treatment

2011 ◽  
Vol 271-273 ◽  
pp. 357-362
Author(s):  
Xiu Ju Duan ◽  
Qiang He ◽  
Ya Li Liu
Keyword(s):  
Small Volume ◽  
Sewage Treatment ◽  
Influence Factors ◽  
Biological Aerated Filter ◽  
Treatment Efficiency ◽  
Research Focus ◽  
Volume Loading ◽  
Treatment Performance ◽  
Aerated Filter ◽  
High Treatment

Biological Aerated Filter has many advantages, such as small volume, high treatment efficiency, etc. This research focus on sewage treatment performance of Integrated Biological Aerated Filter (IBAF), have test under different conditions; research on affections of such influence factors as aeration, CODCr volume loading, HRT, temperature, the height of fillers layer on IBAF, and optimize its functional parameter; discuss regularities of sewage treatment of IBAF under different oprating conditions, adopt feasible measures to guarantee its exceed water quality.

Rethinking sewage treatment by enhancing primary settling with low-dosage lime

2005 ◽  
Vol 52 (10-11) ◽  
pp. 185-192 ◽  
Author(s):  
R. Ramadori ◽  
D. Marani ◽  
V. Renzi ◽  
R. Passino ◽  
A.C. DiPinto
Keyword(s):  
Sewage Treatment ◽  
Complete Removal ◽  
Primary Treatment ◽  
Treatment Efficiency ◽  
Crossflow Filtration ◽  
Physical Separation ◽  
Size Fractions ◽  
Sludge Digestion ◽  
Coagulation Tests ◽  
Low Dosage

This work presents a thorough fractionation of COD in raw sewage, followed by pilot plant coagulation tests with low-dosage lime (pH 9). Through a physical separation (sieving and crossflow filtration) total COD in the raw sewage was partitioned among eight size fractions in the range of 150–0.02μm. In addition, respirometric tests were performed to measure the biodegradability of the different size fractions. More than 60% of COD was associated with settleable and supracolloidal particles (size >1μm), which are characterised by slow biodegradability. Coagulation with lime increased COD removal efficiencies in the primary treatment from typical 30–35%, up to 65–70%, suggesting that lime may induce the almost complete removal of the slowly settling, slowly biodegradable supracolloidal particles in the primary treatment. On the basis of these results a non-conventional sewage treatment scheme is proposed, considering that there is plenty of space for improving primary treatment efficiency through sewage coagulation. Higher primary treatment efficiency may present several advantages, including lower aeration energy in the subsequent biological unit and higher energy recovery from sludge digestion.

Co-treatment of septage in a municipal sewage treatment pond system

2002 ◽  
Vol 46 (9) ◽  
pp. 315-321
Author(s):  
B. Kurup ◽  
R. Kurup ◽  
K. Mathew ◽  
G. Ho
Keyword(s):  
Fecal Coliform ◽  
Treatment Options ◽  
Sewage Treatment ◽  
Municipal Sewage ◽  
Treatment Efficiency ◽  
Oil And Grease ◽  
First Order ◽  
Pond System ◽  
First Order Kinetics ◽  
Total Capacity

This paper deals with the characteristics and treatment options of septage. The objective of the paper is to evaluate the effects of co-treatment of 50 MLD of septage in a sewage treatment pond system. The treatment efficiency of the pond system for BOD5 and Fecal Coliform (FC) has been estimated using a first order kinetics model. The model has predicted that the treatment pond system has a maximum capacity of 8.5 MLD and will have a reserve of 28.3% of its total capacity even after the proposed addition of 50 MLD of septage. Separation of oil and grease from septage prior to discharge into the pond system is recommended.

Laboratory-scale membrane up-concentration and co-anaerobic digestion for energy recovery from sewage and kitchen waste

2015 ◽  
Vol 73 (3) ◽  
pp. 597-606 ◽  
Author(s):  
Nguyen Thi Tuyet ◽  
Nguyen Phuoc Dan ◽  
Nguyen Cong Vu ◽  
Nguyen Le Hoang Trung ◽  
Bui Xuan Thanh ◽  
...  
Keyword(s):  
Energy Recovery ◽  
Membrane Filtration ◽  
Waste Treatment ◽  
Biogas Production ◽  
Sewage Treatment ◽  
Oxygen Demand ◽  
Integrated System ◽  
Total Carbon ◽  
Organic Loading Rate ◽  
Kitchen Waste

This study assessed an alternative concept for co-treatment of sewage and organic kitchen waste in Vietnam. The goal was to apply direct membrane filtration for sewage treatment to generate a permeate that is suitable for discharge. The obtained chemical oxygen demand (COD) concentrations in the permeate of ultrafiltration tests were indeed under the limit value (50 mg/L) of the local municipal discharge standards. The COD of the concentrate was 5.4 times higher than that of the initial feed. These concentrated organics were then co-digested with organic kitchen wastes at an organic loading rate of 2.0 kg VS/m3.d. The volumetric biogas production of the digester was 1.94 ± 0.34 m3/m3.d. The recovered carbon, in terms of methane gas, accounted for 50% of the total carbon input of the integrated system. Consequently, an electrical production of 64 Wh/capita/d can be obtained when applying the proposed technology with the current wastes generated in Ho Chi Minh City. Thus, it is an approach with great potential in terms of energy recovery and waste treatment.

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