CHOOSING AN EFFICIENI TECHNOLOGY OF WASTEWATER SLUDGE DISPOSAL

2020 ◽  
pp. 117-123
Author(s):  
O.V. YANTSEN ◽  
◽  
N.S. SEVRYUGINA ◽  
V.A. GERASIMOV ◽  
A.P. STOROZHEV
Keyword(s):  
Wastewater Treatment ◽  
Water Resources ◽  
Raw Materials ◽  
Treatment Plant ◽  
Wastewater Sludge ◽  
Practical Implementation ◽  
Optimal Method ◽  
Factors Affecting ◽  
Economic Methods ◽  
Materials Used

The article deals with the problem of efficient use of water resources. Factors affecting wastewater treatment and the problem of waste disposal have been identified. It has been established that economic methods should be coordinated with the environmental state in order to rationally manage water resources. The purpose: to reduce the negative environmental burden on water resources by choosing a rational method for the disposal of wastewater sediment. Studies include an analysis of existing methods of wastewater treatment and disposal of sludge. It has been established that the use of the technology for the most complete processing of sewage sludge,utilization of sludge to obtain raw materials for recycling can significantly reduce operating costs. It is accepted as the optimal method to consider the technology of utilization by glazing the sediment, allowing obtaining a granular fraction of raw materials used in the construction industry. An example of the practical implementation of the technology of glazing dehydrated sit cake is presented by a pilot installation at the Shchelkovsite of the sewer treatment plant, as a result of which the amount of wastewater sediment was reduced by almost 25 times.

The Issue of Increasing the Products Durability Made of Fine-Grain Concrete

2018 ◽  
Vol 931 ◽  
pp. 537-543
Author(s):  
Elizaveta O. Lotoshnikova ◽  
Leonid M. Usepyan ◽  
Valeriya N. Telegina ◽  
Elzara O. Tsybenko
Keyword(s):  
Experimental Approach ◽  
Raw Materials ◽  
Practical Implementation ◽  
Technological Method ◽  
Fine Grain ◽  
Materials Used

The article presents a technique for assigning the composition of the agglutinant sand, which is based on the calculation and experimental approach to determining the composition, taking into account the quality of raw materials used and the requirements for the properties of concrete products produced. The obtained results served as the basis for the practical implementation of the proposed technological method of increasing the small-sized products durability made of fine-grain concrete.

DETERMINANTS OF THE SELECTION OF RAW MATERIALS USED IN ANIMAL FEED PRODUCTION

2020 ◽  
Vol XXII (2) ◽  
pp. 191-199
Author(s):  
Magdalena Śmiglak-Krajewska
Keyword(s):  
Animal Feed ◽  
Raw Materials ◽  
Soya Bean ◽  
Raw Material ◽  
Factors Affecting ◽  
Feed Production ◽  
Bean Meal ◽  
Materials Used ◽  
Soya Bean Meal ◽  
Selection Of

The main purpose of this paper was to identify the factors affecting the selection of raw materials used by feed operators in feed production. An attempt was also made to indicate the barriers to increasing the use of native protein plants by feed operators in feed production. Today, many EU countries (including Poland) primarily rely on vegetable protein derived from genetically modified soya bean meal (mainly imported from South America and the U.S.) in addressing their needs for protein raw material used in animal feed. For many years now, Poland has taken steps to increase the production and use of native protein raw material to partially replace soya bean meal imports. The use of mixes of diverse domestic protein sources derived from grain legumes (peas, field beans, lupine) can provide an advantageous alternative to compound feeding stuff based on imported post-extraction soya bean meal. To meet the objective defined above, this paper relied on the results of a 2018 survey conducted with a sample of 29 feed operators located across the country. More than half (55%) of the enterprises surveyed did not use legumes in feed production; the use of legumes was above 10% in only 3% of respondents. When asked about the key factors affecting the selection of raw materials used in production processes, the respondents declared to be interested in buying large batches of homogeneous raw materials that meet specific quality parameters (33% replied “rather yes” and 67% replied “definitely yes”). The protein content of plant seeds used in feed production was identified as another aspect of extreme importance (55% replied “rather yes” and 24% replied “definitely yes”).

scholarly journals Occurrence of bisphenol A in wastewater and wastewater sludge of CUQ treatment plant

2011 ◽  
Vol 1 (1) ◽  
pp. 3 ◽  
Author(s):  
Dipti Prakash Mohapatra ◽  
Satinder Kaur Brar ◽  
Rajeshwar Dayal Tyagi ◽  
Rao Y. Surampalli
Keyword(s):  
Wastewater Treatment ◽  
Bisphenol A ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Wastewater Sludge ◽  
Process Stream ◽  
High Concentration ◽  
Endocrine Activity ◽  
Treated Effluent ◽  
Major Interest

The identification and quantification of bisphenol A (BPA) in wastewater (WW) and wastewater sludge (WWS) is of major interest to assess the endocrine activity of treated effluent discharged into the environment. BPA is manufactured in high quantities fro its use in adhesives, powder paints, thermal paper and paper coatings among others. Due to the daily use of these products, high concentration of BPA was observed in WW and WWS. BPA was measured in samples from Urban Community of Quebec wastewater treatment plant located in Quebec (Canada) using LC-MS/MS method. The results showed that BPA was present in significant quantities (0.07 μg L–1 to 1.68 μg L–1 in wastewater and 0.104 μg g–1 to 0.312 μg g–1 in wastewater sludge) in the wastewater treatment plant (WWTP). The treatment plant is efficient (76 %) in removal of pollutant from process stream, however, environmentally significant concentrations of 0.41 μg L–1 were still present in the treated effluent. Rheological study established the partitioning of BPA within the treatment plant. This serves as the base to judge the portion of the process stream requiring more treatment for degradation of BPA and also in selection of different treatment methods. Higher BPA concentration was observed in primary and secondary sludge solids (0.36 and 0.24 μg g–1, respectively) as compared to their liquid counterpart (0.27 and 0.15 μg L–1, respectively) separated by centrifugation. Thus, BPA was present in significant concentrations in the WWTP and mostly partitioned in the solid fraction of sludge (Partition coefficient (Kd) for primary, secondary and mixed sludge was 0.013, 0.015 and 0.012, respectively).

scholarly journals Operational characteristics of the paper factory's biological wastewater treatment facilities

2020 ◽  
Vol 17 (3) ◽  
pp. 162-167
Author(s):  
Yu. A. Feofanov ◽  
Keyword(s):  
Wastewater Treatment ◽  
Raw Materials ◽  
Treatment Plant ◽  
Organic Pollution ◽  
Oxidative Capacity ◽  
Biological Wastewater Treatment ◽  
Cleaning Efficiency ◽  
Operational Characteristics ◽  
Treatment Facilities ◽  
Paper And Pulp

The results of the biological wastewater treatment facilities of the paper factory using raw materials of different kinds (waste paper and pulp) are analyzed. The main performance characteristics of these structures (oxidative capacity for organic pollution and cleaning efficiency) at different loads on them have been determined. Recommendations have been worked out to improve the performance and efficiency of the treatment plant.

scholarly journals Analisis Sistem Pengelolaan Limbah B3 Di Industri Tekstil Kabupaten Bandung

2021 ◽  
Vol 5 (1) ◽  
pp. 15-26
Author(s):  
Eka Wardhani ◽  
Dea Salsabila
Keyword(s):  
Wastewater Treatment ◽  
Fly Ash ◽  
Wastewater Treatment Plant ◽  
Textile Industry ◽  
Treatment Plant ◽  
Hazardous Materials ◽  
Used Oil ◽  
Dangerous Substances ◽  
Materials Used ◽  
Engine Maintenance

ABSTRAKPenelitian ini bertujuan untuk mengetahui pengelolaan LB3 yang telah dilakukan di indsutri tekstil. Metode penelitian menggunakan metode perbandingan antara kondisi di lapangan dengan peraturan yang berlaku. Berdasarkan hasil evaluasi mengenai pengelolaan LB3 yang dilakukan oleh PT X dapat disimpulkan beberapa hal yaitu sumber LB3 berasal dari proses produksi, lumpur IPAL, boiler, labolatorium, pemeliharaan mesin, dan klinik. Jenis LB3 yang dihasilkan berasal dari sumber spesifik umum yaitu lumpur IPAL dan limbah medis, sumber spesifik khusus yaitu hanya fly ash dan sumber tidak spesifik yang meliputi lampu TL, drum bekas LB3, oli bekas dan reagen. Karakteristik LB3 terdiri dari beracun, mudah menyala, korosif dan infeksius. PT X telah melakukan pengelolaan LB3 yang meliputi aspek pengemasan dan pewadahan, pengumpulan, penyimpanan, pengangkutan dokumen pengelolaan LB3, dan pelabelan LB3. Untuk kegiatan pengangkutan PT X bekerja sama dengan pihak ketiga diantaranya adalah PT Hijau Lestari, PT PPLI, PT Khalda, dan WGI. Berdasarkan hasil analisis pengelolaan LB3 di perusahaan ini termasuk kategori baik. Upaya pengelolaan LB3 yang harus ditingkatkan yaitu pada proses pelekatan simbol dan label, pengemasan, dan penyimpanan LB3.Kata Kunci: Kabupaten Bandung, Industri Tekstil, Limbah B3,ABSTRACTThis study aims to determine the management of LB3 that has been carried out in the textile industry. The research method uses a comparison between conditions in the field and applicable regulations Based on the evaluation results on the management of hazardous materials carried out by PT X, it can be concluded several things, namely the source of hazardous materials originating from the production process, sludge from the wastewater treatment plant, boilers, laboratory, engine maintenance, and clinics. The types of hazardous materials produced come from general specific sources such are sludge from the wastewater treatment plant and medical waste, specific sources which are fly ash and non-specific sources which include lamps, drums used in hazardous materials, used oil and reagents. The characteristics of hazardous materials consist of toxic, flammable, corrosive, and infectious. PT X has managed the management of hazardous materials which includes aspects of packaging, storage, collection, storage, transportation of documents on the management of hazardous materials, and labeling of hazardous materials. For transportation activities, PT X cooperates with third parties including PT Hijau Lestari, PT PPLI, PT Khalda, and WGI. Based on the analysis the achievement of the management of dangerous substances in this company including the good category. Efforts to manage toxic and hazardous materials must be improved in the process of sticking symbols and labels, packaging, and storing toxic and hazardous materials.Keywords: Bandung Regency, Testile iIndustry, hazardous waste materials

scholarly journals Activated Sludge Microbial Community and Treatment Performance of Wastewater Treatment Plants in Industrial and Municipal Zones

2020 ◽  
Vol 17 (2) ◽  
pp. 436 ◽  
Author(s):  
Yongkui Yang ◽  
Longfei Wang ◽  
Feng Xiang ◽  
Lin Zhao ◽  
Zhi Qiao
Keyword(s):  
Wastewater Treatment ◽  
Microbial Community ◽  
Activated Sludge ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Wastewater Sludge ◽  
Community Diversity ◽  
Nitrogen And Phosphorus ◽  
Metabolic Functions

Controlling wastewater pollution from centralized industrial zones is important for reducing overall water pollution. Microbial community structure and diversity can adversely affect wastewater treatment plant (WWTP) performance and stability. Therefore, we studied microbial structure, diversity, and metabolic functions in WWTPs that treat industrial or municipal wastewater. Sludge microbial community diversity and richness were the lowest for the industrial WWTPs, indicating that industrial influents inhibited bacterial growth. The sludge of industrial WWTP had low Nitrospira populations, indicating that influent composition affected nitrification and denitrification. The sludge of industrial WWTPs had high metabolic functions associated with xenobiotic and amino acid metabolism. Furthermore, bacterial richness was positively correlated with conventional pollutants (e.g., carbon, nitrogen, and phosphorus), but negatively correlated with total dissolved solids. This study was expected to provide a more comprehensive understanding of activated sludge microbial communities in full-scale industrial and municipal WWTPs.

scholarly journals Evaluation of bacterial contamination and mutagenic potential of treated wastewater from Al-Samra wastewater treatment plant in Jordan

2020 ◽  
Vol 18 (6) ◽  
pp. 1124-1138
Author(s):  
Nisreen A. AL-Quraan ◽  
Lubna I. Abu-Rub ◽  
Abdel-Kareem Sallal
Keyword(s):  
Public Health ◽  
Wastewater Treatment ◽  
Water Resources ◽  
Wastewater Treatment Plant ◽  
Pathogenic Bacteria ◽  
Bacterial Contamination ◽  
Mutagenic Activity ◽  
Treatment Plant ◽  
Treated Wastewater ◽  
Mutagenic Potential

Abstract Jordan is one of the lowest countries in the world in terms of water resources. The reuse of treated wastewater is an important alternative to supply agricultural demands for water. In Jordan, Kherbet Al-Samra wastewater treatment plant (KSWWTP) is the largest and its effluent is mainly used for irrigation purposes. In this study, bacterial contamination and mutagenic potential were evaluated in six sites, beginning with KSWWTP and ending with King Tallal Dam. The results showed high contamination with many pathogenic bacteria and coliforms. The isolated pathogenic bacteria were Salmonella sp., Shigella sp., Bacillus cereus and Staphylococcus aureus. The isolated opportunistic pathogenic bacteria were Acinetobacter lwoffii, Elizabethkingia meningosepticum, Pseudomonas fluorescens and Bacillus licheniformis. These bacteria were found in all sampling sites without a specific prevalence pattern. Differences in temperature between seasons affect total coliform and other bacterial count. All water samples showed positive mutagenic activity and high bacterial pollution. Improving the disinfection efficiency in the wastewater treatment plant is important to minimize potential toxicity and exposure of public health to pathogenic bacteria, reduce water resources' contamination and environmental pollution. Increasing effluent sampling frequency from KSWWTP is required to monitor bacterial contamination and toxicity/mutagenicity level for water safety and public health risk assessments.

Environmental impact assessment at a Colombian Caribbean wastewater treatment plant

2017 ◽  
Vol 10 (27) ◽  
pp. 1343-1350
Author(s):  
C.A. Severiche-Sierra ◽  
M.K. Valest-Bustillo ◽  
J. Jaimes-Morales ◽  
E.A. Bedoya-Marrugo ◽  
R. Mancera-De La Cruz
Keyword(s):  
Environmental Management ◽  
Wastewater Treatment ◽  
Environmental Impacts ◽  
Raw Materials ◽  
Treatment Plant ◽  
Environmental Management System ◽  
Environmental Legislation ◽  
Environmental Aspects ◽  
Water Pretreatment ◽  
Level Of Significance

In this paper it is identified and described the environmental aspects and impacts in a treatment plant wastewater. The inputs of raw materials, fuel, electricity and water are taken into account; similarly, the outputs as emissions, noise, discharges and waste, looking comply with environmental legislation and resource management. The most relevant results of the work leading to the qualification of environmental impacts studied for low and middle levels of significance area. The treatment plant wastewater meets its environmental management system, with appropriate controls on environmental impacts both normal and abnormal conditions. Higher level of significance was found in the areas of water pretreatment, but this has an environmental regulation and compliance under national law.

Validation and implementation of model based control strategies at an industrial wastewater treatment plant

2001 ◽  
Vol 44 (2-3) ◽  
pp. 145-154 ◽  
Author(s):  
D. Demey ◽  
B. Vanderhaegen ◽  
H. Vanhooren ◽  
J. Liessens ◽  
L. Van Eyck ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Industrial Wastewater ◽  
Dynamic Models ◽  
Control Strategies ◽  
Treatment Plant ◽  
Practical Implementation ◽  
Industrial Wastewater Treatment ◽  
Model Based ◽  
On Line

In this paper, the practical implementation and validation of advanced control strategies, designed using model based techniques, at an industrial wastewater treatment plant is demonstrated. The plant under study is treating the wastewater of a large pharmaceutical production facility. The process characteristics of the wastewater treatment were quantified by means of tracer tests, intensive measurement campaigns and the use of on-line sensors. In parallel, a dynamical model of the complete wastewater plant was developed according to the specific kinetic characteristics of the sludge and the highly varying composition of the industrial wastewater. Based on real-time data and dynamic models, control strategies for the equalisation system, the polymer dosing and phosphorus addition were established. The control strategies are being integrated in the existing SCADA system combining traditional PLC technology with robust PC based control calculations. The use of intelligent control in wastewater treatment offers a wide spectrum of possibilities to upgrade existing plants, to increase the capacity of the plant and to eliminate peaks. This can result in a more stable and secure overall performance and, finally, in cost savings. The use of on-line sensors has a potential not only for monitoring concentrations, but also for manipulating flows and concentrations. This way the performance of the plant can be secured.

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