Tertiary treatment of biologically treated piggery wastewater using vibratory shear-enhanced RO membrane

2004 ◽  
Vol 49 (5-6) ◽  
pp. 435-442 ◽  
Author(s):  
J. Lee ◽  
S. Kim ◽  
J. Choi ◽  
H. Hwang ◽  
M. Cha ◽  
...  
Keyword(s):  
Suspended Solids ◽  
Pilot Test ◽  
Tertiary Treatment ◽  
Livestock Wastewater ◽  
Piggery Wastewater ◽  
Simple Process ◽  
Effluent Standards ◽  
Treated Effluent ◽  
Ro Membrane ◽  
Process Combination

This study presents a good example for the tertiary treatment of biologically treated piggery wastewater using vibratory shear enhanced RO membrane (VSEP RO). Through a simple process combination, utilizing Bioceramic SBR(BCS) and VSEP RO, at Gimhae plant livestock wastewater is treated excellently to meet the strict effluent standards. Application of RO membrane directly to the biologically treated effluent has been successful without any pretreatment to reduce high suspended solids. The combination of VESP UF followed by RO filtration processes produced a higher recovery rate in the 3-week pilot test.

Development and Optimization of a Process Combination of a Highest-Loaded Activated Sludge Stage and Biologically Intensified Filtration

1987 ◽  
Vol 19 (5-6) ◽  
pp. 981-992 ◽  
Author(s):  
W. Firk ◽  
N. Ghandehari
Keyword(s):  
Activated Sludge ◽  
Oxygen Supply ◽  
Substantial Improvement ◽  
Supply System ◽  
Advanced Treatment ◽  
Activated Sludge Process ◽  
Process Modification ◽  
Effluent Standards ◽  
Process Combination ◽  
Activated Sludge Systems

Conventional sand- and two-layer filtration is frequently put into action for the purpose of advanced wastewater treatment after low-loaded activated sludge systems. However, the effectiveness of this conventional filter concerning the biological content which is difficult to degrade (measured by COD) is extremely low - and the costs too high. In direct comparison, modifying the filters to a biologically intensified system, brings about a substantial increase in efficiency while costing very little more. The investigations of the authors for the optimization of the whole system, consisting of an activated sludge process and a biologically intensified filter, led to the fact that for the requirements of advanced treatment, the size of the activated sludge stage can be substantially reduced, without the effectiveness of the system as a whole being affected. In the field of normal requirements (national effluent standards) and comparable low influx concentrations, biologically intensified filtration can be combined with a high-loaded activated sludge process of SLR up to 5 kg BOD5/(kg MLSS.d). The area required for the construction of the system is under 50% compared to the conventional one-stage activated sludge system. At higher influx concentrations the simultaneous addition of precipitants/flocculants to the high-loaded activated sludge stage, leads to substantial improvement of the effluent of the whole system and simultaneously to a distinct phosphorus elimination. This process modification is greatly advantageous, especially for densely populated lake areas. The oxygen supply system of the filter has a key function in connection with the influent concentration and the loading of the biological stage.

scholarly journals The efficiency of electrocoagulation using aluminum electrodesin treating wastewater from a dairy industry

2015 ◽  
Vol 45 (9) ◽  
pp. 1713-1719 ◽  
Author(s):  
Gerson de Freitas Silva Valente ◽  
Regina Célia Santos Mendonça ◽  
José Antônio Marques Pereira
Keyword(s):  
Current Density ◽  
Suspended Solids ◽  
Operating Cost ◽  
Dairy Industry ◽  
Optimum Operating ◽  
Optimum Operating Condition ◽  
Treated Effluent ◽  
Dairy Plant ◽  
Aluminum Electrodes ◽  
Industry Effluent

<p>This research deals with the investigation of electrocoagulation (EC) treatment of wastewater from a dairy plant using aluminum electrodes. Electrolysis time, pH, current density and distance between electrodes were considered to assess the removal efficiency of chemical oxygen demand (COD), total solids (TS) and their fractions and turbidity. Samples were collected from the effluent of a dairy plant using a sampling methodology proportional to the flow. The treatments were applied according to design factorial of half fraction with two levels of treatments and 3 repetitions at the central point. The optimization of parameters for treating dairy industry effluent by electrocoagulation using aluminum electrodes showed that electric current application for 21 minutes, an initial sample pH near 5.0 and a current density of 61.6A m<sup>-2</sup> resulted in a significant reduction in COD by 57%; removal of turbidity by 99%, removal of total suspended solids by 92% and volatile suspended solids by 97%; and a final treated effluent pH of approximately 10. Optimum operating condition was used for cost calculations show that operating cost is approximately 3.48R$ m<sup>-3</sup>.</p>

Investigation of a Full-Scale Anaerobic-Aerobic and Constructed Wetlands Integrated System Treating Livestock Wastewater

2010 ◽  
Vol 113-116 ◽  
pp. 1189-1194
Author(s):  
Yong Ming Wu ◽  
Jin Bao Wan ◽  
Ji Hai Xiong ◽  
Shun Fa Wang ◽  
Ping Gu
Keyword(s):  
Constructed Wetlands ◽  
Biological Treatment ◽  
Large Scale ◽  
Wastewater Treatment Plants ◽  
Removal Rate ◽  
Full Scale ◽  
Integrated System ◽  
Tertiary Treatment ◽  
Livestock Wastewater ◽  
Aerobic Process

A full-scale integrated system of the IOC-SBBR and CWs for the biological treatment of livestock wastewater was carried out in this study, the combined IOC-SBBR process had the removal rates of COD, NH4+-N, TN reached 96.5%, 89% and 81.1%, respectively. CWs were used for the further tertiary treatment of livestock wastewater, which the average removal rate of the NH4+-N and TN was 61.3% and 60.2%, the overall integrated system was superior to the direct anaerobic or aerobic process for the treatment of large-scale livestock wastewater, would provide the valuable design and operation for the livestock wastewater treatment plants.

A Decade of Change at West-Southwest Sewage Treatment Works, Chicago, Illinois, U.S.A.

1984 ◽  
Vol 16 (12) ◽  
pp. 555-571
Author(s):  
Nicholas J Melas ◽  
Raymond R Rimkus
Keyword(s):  
Suspended Solids ◽  
Sewage Treatment ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
The West ◽  
West Side ◽  
Effluent Quality ◽  
Effluent Standards ◽  
Solids Processing

The Metropolitan Sanitary District of Greater Chicago's West-Southwest Sewage Treatment Works consists of the West Side Treatment Works, an Imhoff facility placed in operation in 1930, and the Southwest Sewage Treatment Works, an activated sludge plant placed in operation in 1939. This paper focuses on the decade of “1970's” and examines changes in plant operating procedures along with plant additions and improvements that were implemented in order to meet stringent water quality and effluent standards. The effect of the energy crisis and the measures taken at the West-Southwest Sewage Treatment Works to lessen its impact are reported. Over the study period, very costly and energy intensive solids processing operations were either curtailed or eliminated. New and innovative processes of sludge handling were developed and implemented. The net effect of these changes in solids processing coupled with modifications in the secondary wastewater treatment operations have resulted in a significant improvement in the effluent quality of the plant. In the early seventies, the effluent concentration for suspended solids, biochemical oxygen demand, and ammonia-nitrogen were 30, 23, and 12 mg/l, respectively; the corresponding values for these parameters in 1981 averaged 6, 6, and 1.4 mg/l.

“Gully pit inserts” shown to reduce pollutants in stormwater

2021 ◽  
Vol 6 (1) ◽  
pp. 1-13
Author(s):  
Brad Dalrymple ◽  
Michael Wicks ◽  
Warren Jones ◽  
Blake Allingham
Keyword(s):  
Performance Monitoring ◽  
Suspended Solids ◽  
Control Measure ◽  
Flow Analysis ◽  
Performance Testing ◽  
Data Access ◽  
Stormwater Treatment ◽  
Remote Communication ◽  
Treated Effluent ◽  
Car Park

‘Gully pit inserts’ (or ‘gully baskets’) are a commonly applied stormwater control measure given they can often be easily integrated into gully pits with no impact to the usability of the area. Stormwater treatment performance monitoring has been undertaken for a gully pit with a fine grade (200-micron) bag of 300mm depth in a car-park in Western Sydney, NSW, Australia. The gully pit insert receives runoff from a 100% impervious car-park area of 400m2. Influent and effluent water quality samples were collected using automated samplers, which were connected to pre-configured and calibrated flow analysis of treated effluent and sample pacing with remote communication and data access. Collected samples were delivered to and analysed in a NATA-accredited laboratory for pH and concentrations of suspended solids and nutrient species. Monitoring was undertaken between December 2019 and March 2021, with a total of fifteen (15) runoff events recorded during this period. The performance testing demonstrated that the gully pit insert was able to achieve significant reductions in stormwater pollutant concentrations, with a concentration reduction efficiency ratio for total suspended solids, total phosphorus and total nitrogen of 52, 67 and 41% respectively.

scholarly journals Application of expanded polystyrene filter for tertiary treatment of domestic waste effluent in the UK

2017 ◽  
Vol 35 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Viktor Fylypchuk ◽  
Stanislav Induchny ◽  
Pete Pearce ◽  
Leonid Fylypchuk ◽  
Serhii Martynov
Keyword(s):  
Wastewater Treatment Plants ◽  
Expanded Polystyrene ◽  
Filtration Flow ◽  
Tertiary Treatment ◽  
Domestic Waste ◽  
Chemical Contaminants ◽  
Automatic Mode ◽  
Treated Effluent ◽  
Filter Operation ◽  
The Uk

AbstractThe use of expanded polystyrene filters is a promising method for tertiary treatment of domestic waste effluent where biologically treated effluent is filtered through a layer of buoyant polystyrene beads. The advantage of such filters is in the absence of backwashing pumps, containers of clean washing water, while having low energy costs, high resistance of polystyrene to various chemical contaminants that may be in the effluent, easy automation of switching modes.The article describes the features of the design and principles of the expanded polystyrene filter operation with an upward filtration flow which works in automatic mode. The article includes the comparison of operation and the structural technological characteristics of polystyrene filters with disc filters, which are usually used in practice of tertiary-treatment of effluent in the UK.Experimental results were obtained from the operation of expanded polystyrene filters with an upward flow of filtration at two operational wastewater treatment plants. The effectiveness of the tertiary-treatment of waste effluent was evaluated by measures of BOD and COD in non-filtered and filtered samples, as well as total suspended solids during the months of the year and hours of the day. The filter demonstrated an average removal of 40% BOD, 28% of COD and 66% of TSS.

scholarly journals Poultry Slaughterhouse Wastewater Treatment Using Submerged Fibers in an Attached Growth Sequential Batch Reactor

2018 ◽  
Vol 15 (8) ◽  
pp. 1734 ◽  
Author(s):  
Hamidi Aziz ◽  
Nur Puat ◽  
Motasem Alazaiza ◽  
Yung-Tse Hung
Keyword(s):  
Removal Efficiency ◽  
Suspended Solids ◽  
Batch Reactor ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
Treatment Efficiency ◽  
Slaughterhouse Wastewater ◽  
Sequential Batch Reactor ◽  
Treated Effluent ◽  
Different Types

In this study, a sequential batch reactor (SBR) with different types of fibers was employed for the treatment of poultry slaughterhouse wastewater. Three types of fibers, namely, juite fiber (JF), bio-fringe fiber (BF), and siliconised conjugated polyester fiber (SCPF), were used. Four SBR experiments were conducted, using the fibers in different reactors, while the fourth reactor used a combination of these fibers. The treatment efficiency of the different reactors with and without fibers on biochemical oxygen demand (BOD), chemical oxygen demand (COD), ammonia-nitrogen (NH3-N), phosphorus (P), nitrite (NO2), nitrate (NO3), total suspended solids (TSS), and oil-grease were evaluated. The removal efficiency for the reactors with fibers was higher than that of the reactor without fibers for all pollutants. The treated effluent had 40 mg/L BOD5 and 45 mg/L COD with an average removal efficiency of 96% and 93%, respectively, which meet the discharge limits stated in the Environmental Quality Act in Malaysia.

scholarly journals Comparative evaluation of the coagulation methods effectiveness in the extraction of biologically active components from highly concentrated effluents

2020 ◽  
Vol 82 (1) ◽  
pp. 213-218
Author(s):  
V. I. Korchagin ◽  
J. N. Dochkina ◽  
E. A. Denisova ◽  
A. A. Plyakina
Keyword(s):  
Wastewater Treatment ◽  
Suspended Solids ◽  
Raw Materials ◽  
Chloride Concentration ◽  
Oxygen Demand ◽  
Biologically Active ◽  
Active Components ◽  
Chemical Coagulation ◽  
Treated Effluent ◽  
Physico Chemical

A characteristic feature of highly concentrated effluents is the presence of valuable components - biologically active substances, which are secondary raw materials. The effectiveness of physico-chemical coagulation and electrocoagulation methods in relation to highly concentrated wastewater from a poultry processing enterprise, as well as the prevention of the secondary pollution of the effluent supplied to biological treatment, were analyzed in the work. The objects of the study included poultry stock (suspended solids 1770.0 mg / dm3, dry residue 1920.0 mg / dm3, chemical oxygen demand (COD) 1769.0 mg O2 / dm3), iron (III) FeCl3 chloride, iron soluble electrodes as the coagulant. The objectives of study involved determination of wastewater treatment effectiveness by the studied methods (physico-chemical coagulation and electrocoagulation) with the priority indicators changing: suspended solids, dry residue, chemical consumption of oxygen, iron, chlorides, and the precipitated residue mass. As a result of testing of highly concentrated effluents with a COD index of at least 1700.0 mg O2 / dm3, it was found out that during physico-chemical coagulation with FeCl3 at a concentration of 0.75 g / dm3, the content of priority indicators decreased by no less than 60%, while the effectiveness of electrocoagulation in relation to reducing the concentration of priority indicators was at least 70%. The content of iron compounds in wastewater with the application of electrochemical coagulation was 2.08 mg / dm3, which is 34% lower than after treatment of the effluent with iron (III) chloride FeCl3 at a concentration of 0.75 g / dm3. The chloride concentration did not change. As a result of the treatment of the effluent during the coagulation of (III) FeCl3, the secondary contamination of the treated effluent and the isolated products with iron and chlorides took place. This aspect may adversely affect the subsequent biological wastewater treatment, as well as lead to a decrease in the quality of the isolated product and its use limitation. Electrocoagulation is a more preferred way of isolating valuable components in relation to physico-chemical coagulation.

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