Zero discharge, cost effective MDF effluent treatment plant

2002 ◽  
Vol 39 (10) ◽  
pp. 30-31 ◽  
2017 ◽  
Vol 6 (2) ◽  
pp. 198 ◽  
Author(s):  
Ryland Cairns ◽  
Paul Mead

Anaerobic Digestion has gained popularity in recent years due to its significant contribution towards achieving waste management and renewable energy targets. One particular technology that has been widely used in the treatment of high strength organic wastewaters across a wide range of industries is upflow anaerobic sludge blankets (UASBs). A malt ingredients manufacturing factory has successfully applied this technology as a cost effective way to treat their high strength effluent, however unlike other industries there is a lack of research regarding the wastewater characterisation or UASB performance at either lab or full scale. This paper aims to address this gap in knowledge and provide information on both the wastewater composition and on the ability of a full-scale mesophilic UASB to treat it over a period of 638 days. Analysis of the wastewater revealed that the manufacture of malt ingredients produces a high strength effluent, which fits within the realms of previously documented wastewaters despite not sharing a similar characterisation profile. Mesophilic UASB has been show to be an effective and robust technology option for the treatment of this type of wastewater displaying steady operational performance even when conditions were in excess of the design limit. Due to the robust operational performance of the plant the main factor limiting total methane production was shown to be the organic loading rate. 


1988 ◽  
Vol 20 (1) ◽  
pp. 65-72 ◽  
Author(s):  
Rurik Skogman ◽  
Reino Lammi

The requirements imposed on the Finnish forest products industry by the water authorities have focused on the reduction of BOD and suspended solids in the wastewaters. The industry has tried to comply with these requirements, first through internal measures such as process changes and closed systems. When these have not been sufficient, external treatment has been resorted to. The Wilh. Schauman Company in Jakobstad has chosen activated sludge with extended aeration from among the available methods for treating effluent. The plant has operated since the beginning of 1986 with extremely good results. In addition to the reduction of BOD and suspended solids, there has been a marked decrease of chlorinated phenols. Chlorinated substances with higher molecular weight are also removed during the process.


1992 ◽  
Vol 25 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Larbi Tebai ◽  
Ioannis Hadjivassilis

Soft drinks industry wastewater from various production lines is discharged into the Industrial Effluent Treatment Plant. The traditional coagulation/flocculation method as first step, followed by biological treatment as second step, has been adopted for treating the soft drinks industry wastewaters. The performance of the plant has been evaluated. It has been found that the effluent characteristics are in most cases in correspondence with the requested standards for discharging the effluent into the Nicosia central sewerage system.


Author(s):  
Saurabh N. Joglekar ◽  
Pratik D. Solankey ◽  
Sachin A. Mandavgane ◽  
Bhaskar D. Kulkarni

2019 ◽  
Vol 7 (2) ◽  
pp. 113-115 ◽  
Author(s):  
Karishma Shamarukh ◽  
- Mohammad Omar Faruq ◽  
Nasrin Jahan ◽  
Amina Sultana ◽  
Ridwan Naim Faruq

Hydrogen sulfide is a notorious agent known to cause serious injuries in the occupational field. We are going to discussa case of a 20 years old male working in a effluent treatment plant in Savar, Bangladesh who accidentally entered thefume room and was exposed to the toxic gas. He lost consciousness and was brought to our care from a local hospitalafter endotracheal intubation condition. He was found in state of unconsciousness grade III on admission to our ICU.His brain CT scan revealed diffuse cerebral edema. Chest X-ray revealed finding suggestive of diffuse pneumonitis.Cardiology evaluation suggested Toxic cardiomyopathy as his high sensitive Troponin I was very high on admission (2037ng/L). Supportive care was given in the form of mechanical ventilation, antibiotics, anticonvulsant andanti-ischemic medications. Patient regained consciousness on day 10 after admission and gradually improvedclinically. By the end of the month of stay in hospital he was significantly improved. Bangladesh Crit Care J September 2019; 7(2): 113-115


2020 ◽  
Vol 2 (6) ◽  
Author(s):  
Amit Aggarwal ◽  
Manpreet Bhalla ◽  
Khan Hena Fatima

Background. Organisms possessing the bla NDM-1 gene (responsible for carbapenem resistance) with a class-1 integron can acquire many other antibiotic resistance genes from the community sewage pool and become multidrug-resistant superbugs. In this regard, hospital sewage, which contains a large quantity of residual antibiotics, metals and disinfectants, is being recognized as a significant cause of antimicrobial resistance (AMR) origination and spread across the major centres of the world and is thus routinely investigated as a marker for tracing the origin of drug resistance. Therefore, in this study, an attempt has been made to identify and characterize the carbapenem-resistant microbes associated with integron genes amongst the organisms isolated from the effluent treatment plant (ETP) installed in a tertiary respiratory care hospital in Delhi, India. Methods. One hundred and thirty-eight organisms belonging to Escherichia , Klebsiella , Pseudomonas and Acinetobacter spp. were collected from the incoming and outgoing sewage lines of the ETP. Carbapenem sensitivity and characterization was performed by the imipenem and imipenem-EDTA disc diffusion method. Later DNA extraction and PCR steps were performed for the Int-1 and bla NDM-1 genes. Results. Of the 138 organisms, 86 (62.3 %) were imipenem-resistant (P<0.05). One hundred and twenty-four (89.9 %) organisms had one or both of the genes. Overall, the bla NDM-1 gene (genotypic resistance) was present in 71 % (98/138) of organisms. 53.6 % (74/138) organisms were double gene-positive (bla NDM-1 + Int-1), of which 40 were producing the metallo-beta-lactamase enzyme, making up almost 28.9 % (40/138) of the collected organisms. Conclusion. The current study strengthens the hypothesis that Carbapenem resistant organisms are in a high-circulation burden through the human gut and hospital ETPs are providing an environment for resistance origination and amplification.


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