Analysis of sludge management parameters resulting from the use of domestic garbage disposers

2001 ◽  
Vol 44 (10) ◽  
pp. 27-34 ◽  
Author(s):  
N. I. Galil ◽  
L. Yaacov
Keyword(s):  
Wastewater Treatment ◽  
Solid Waste ◽  
Water Content ◽  
Organic Content ◽  
Energy Potential ◽  
Operation Costs ◽  
Additional Production ◽  
Domestic Use ◽  
Treatment Facilities ◽  
High Organic Content

The use of domestic garbage disposers may reduce the amounts and improve the solid waste composition, by lowering putrid matter and water content and by raising the caloric potential. However, additional loading on the sewerage systems might require increased investments and operation costs of the wastewater treatment facilities. This project analyses additional amounts of solids, biosolids and process requirements connected with wastewater treatment facilities resulting from the domestic use of garbage disposers, as well as the additional production of biogas. It was found that the use of the domestic garbage disposers in 60% of the households in a given urban area, is expected to reduce the weight, volume and water content of the solid waste by 7.0%, 3.3% and 4.4% for garbage characterized by low organic content, and by 18.7%, 11.0% and 13.3% for high organic content, respectively. The additional amounts of sludge are expected to be the lowest in case of biological treatment only, 24 to 38 g/capita/day, and the highest in case of primary chemical sedimentation followed by biotreatment, 67 to 100 g/capita/day. In these conditions the energy potential from biogas obtained in anaerobic digestion of sludge from wastewater collected from the same area, will increase by 50% to 70%, depending on the wastewater treatment sequence. The investment in wastewater treatment is estimated to increase by 23% to 27% and the annual costs for operation and maintenance are expected to increase by 26% to 30%.

scholarly journals Sosialisasi Pengelolaan Limbah Dapur Serta Program 3R (Reuse, Reduce, Recycle) Bagi Pemilik Rumah Makan dan Jasa Boga di Wilayah Kota Tasikmalaya

2018 ◽  
Vol 1 (2) ◽  
pp. 53-62
Author(s):  
Melly Mellyanawaty ◽  
Estin Nofiyanti ◽  
A Ibrahim ◽  
N Salman ◽  
N Nurjanah ◽  
...  
Keyword(s):  
Solid Waste ◽  
Energy Requirement ◽  
Organic Content ◽  
Limited Area ◽  
Solid Waste Disposal ◽  
Kitchen Waste ◽  
Egg Shells ◽  
Cooked Food ◽  
Pre Treatment ◽  
High Organic Content

Society services activity in kitchen waste management system has been implemented to the owner of restaurant and catering work in Tasikmalaya City area. This activity has colaborated with Indonesian Catering Associations (APJI). The rapid growth of restaurant and catering activities has created serious problems of energy requirement, water, and solid waste disposal. Less information and limited area become the problems in handling of kitchen waste. A simple technique is needed to overcome the environmental problem which is caused by kitchen waste. The components of kitchen waste include vegetables, peelings, fruit skins, spoilt fruit, cooked and uncooked meat, bones, fats, egg-shells, bread and pastries, cooked food waste, etc. Due to a high organic content, bioconversion technologies such as anaerobic digestion are more suitable to handle the waste convert to biogas. It would be reducing the LPG usage. For the kitchen wastewater, grease trap as pre-treatment followed by a physical and biological process is one of a simple process which can produce the effluent in accordance with government standard. The activities were continued by the socialization of 3R program (reuse, reduce, recycle) by doing demo utilization of kitchen solid waste such as packing material, mineral water bottle is made a handicraft. Knowledge transfer run well and the enthusiasm of the participants in following the activity were very good.

Analyzing the Reuse Potentials of Landfilled Solid Wastes for Farm Water Treatment and Reuse

2021 ◽  
Vol 47 (3) ◽  
pp. 417-424
Author(s):  
Anijiofor Sandra Chinenyenwa ◽  
Nik Daud Nik Norsyhariati ◽  
Idrus Syazwani ◽  
Che Man Hasfalina
Keyword(s):  
Wastewater Treatment ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Total Coliform ◽  
Organic Content ◽  
Bet Surface Area ◽  
Bioreactor Landfills ◽  
Irregular Shapes ◽  
Air Diffusion

The increasing solid waste management problems in developing countries necessitated landfill mining to determine the reuse potentials of landfilled solid waste materials. In this study, characterization of landfilled solid waste obtained from a closed landfill site in Malaysia was conducted to ascertain its reuse potentials for biodegradation in wastewater treatment. The results revealed adequate neutral pH, Moisture Content of 34 %, Organic Content of 10.4 % and Bacterial Population in terms of Total Coliform of 8.3 × 105 CFU/100 mL, which are ideal conditions for biodegradation while porosity n of 51%, allow free flow of water during treatment. The SEM showed irregular shapes and pore spaces and a BET surface area of 3.376 m 2 g-1 which enables adsorption of pollutants on its surface, air diffusion and re-aeration. Furthermore, the waste material was used as media for biodegradation in a lab-scale bioreactor at a hydraulic loading of 4 L m-3 d-1 and inflow rate of 0.1 L min-1. The results showed maximum removal rates of 95, 97, 86, 70, 70, and 98% for COD, BOD, TSS, TDS, NH3-N, and TP respectively. Utilization of this technology as bioreactor landfills will solve landfill congestion and also provide cheap wastewater treatment option.

High organic content industrial wastewater treatment by membrane filtration

Desalination ◽  
2004 ◽  
Vol 162 ◽  
pp. 117-120 ◽  
Author(s):  
Ildikó Galambos ◽  
Jesus Mora Molina ◽  
Péter Járay ◽  
Gyula Vatai ◽  
Erika Bekássy-Molnár
Keyword(s):  
Wastewater Treatment ◽  
Industrial Wastewater ◽  
Membrane Filtration ◽  
Organic Content ◽  
Industrial Wastewater Treatment ◽  
High Organic Content

Larval habitats of common Culicoides Latreille (Diptera, Ceratopogonidae) in Kenya

1976 ◽  
Vol 66 (3) ◽  
pp. 421-425 ◽  
Author(s):  
R. Lubega ◽  
C. P. M. Khamala
Keyword(s):  
Organic Matter ◽  
Water Content ◽  
Organic Content ◽  
Immature Stages ◽  
Larval Habitats ◽  
Breeding Habitats ◽  
General Systems ◽  
Emergence Traps ◽  
Species Preferences ◽  
High Organic Content

AbstractThe larval habitats of Culicoides species were determined by examining a total of 1 476 samples collected from different ecological environments in various parts of Kenya. Immature stages were collected from suspected breeding habitats and adults were reared. Adults were also captured in emergence traps and then identified. To determine species preferences, if any, the materials yielding Culicoides were analysed for pH, organic matter and water content.Fifty-seven percent of the samples yielded a total of 26 species of Culicoides. Sites in which Culicoides occurred were classified into eleven habitats grouped into four major systems, namely, aquatic, transitional, terrestrial and general systems. Most species were found breeding over a wide pH range in sites which were wet at least part of the time. A few species appeared to select breeding habitats with a high organic content.

Combined Treatments of Urban and Olive Mill Effluents in Apulia, Italy

1990 ◽  
Vol 22 (9) ◽  
pp. 235-240 ◽  
Author(s):  
G. Boari ◽  
I. M. Mancini
Keyword(s):  
Organic Pollution ◽  
Organic Content ◽  
Full Scale ◽  
Organic Load ◽  
Successful Operation ◽  
Italian Law ◽  
Domestic Use ◽  
Treatment Facilities ◽  
Reclamation Plan ◽  
Olive Mill

The effluent from olive mill plants (OME) presents a seasonal problem, as although small in volume it has very high organic content, and in consequence it is particularly difficult to meet Italian law discharge limits. This problem has been carefully studied in Apulia where, during the olive milling season, organic pollution exceeds that from domestic use by a factor of three. Preliminary research allowed the estimation of organic load per ton of milled olives, and the comparison of the effectiveness of feasible treatment processes. The results have been utilized in the Water Reclamation Plan of the Apulia Region (WRP). This Plan permits the discharge of OME into public sewers only when its contribution is less than 20% of urban wastewater's (UW) organic load, or provides the transport of a controlled amount to treatment facilities, over a period ranging from 100 to 300 days. Results of full-scale and pilot biological treatment plants for combined UW and OME effluents are reported, together with the main project parameters. Anaerobic processes are more economical but their successful operation needs to be confirmed on full-scale plants.

scholarly journals TECHNOLOGICAL COMPLEX FOR PROCESSING OF SOLID HOUSEHOLD AND TREATMENT FACILITIES WASTE WITH BIOGAS OBTAINING

2021 ◽  
pp. 73-79
Author(s):  
O.O. Seryogin ◽  
O.V. Vasylenko ◽  
Frank J. Riedel ◽  
Helmut Aigner
Keyword(s):  
Wastewater Treatment ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Biologically Active ◽  
Processing Plant ◽  
Municipal Wastewater Treatment ◽  
Active Sludge ◽  
Treatment Facilities

A concept has been developed for processing of biologically active sludge from municipal wastewater treatment plants in combination with the organic fraction of municipal solid waste using the BioTech Process. The complex, which makes it possible to implement the proposed concept, does not require additional land plots, and classified secondary raw materials, biogas and high-quality biofertilizers suitable for use in the agricultural industry are the products of its activity. The proposed concept will allow solving several problems at once due to the construction of a waste recycling plant on the territory of the filtration zone of the existing water treatment facilities. The new processing plant will be used not only for processing and sorting of solid waste, but also for treating sludge from wastewater treatment plants, together with organic waste obtained from solid waste in the BioTech Process to obtain biogas and biofertilizers, the so-called compost. The new recycling plant will be environmentally friendly and, among other benefits, will be able to process of municipal solid waste with preliminary sorting and separation of recyclable materials. Bibl. 9, Fig. 1.

Технологические аспекты обезвоживания осадков промышленно-дождевых сточных вод автотранспортных предприятий

2019 ◽  
pp. 25-30
Author(s):  
G. Variushina
Keyword(s):  
Wastewater Treatment ◽  
Moisture Content ◽  
Vacuum Filter ◽  
Operational Parameters ◽  
Technological Parameters ◽  
Wastewater Treatment Process ◽  
Motor Transport ◽  
Cationic Flocculant ◽  
Residual Sludge ◽  
Treatment Facilities

Приводятся сведения об условиях формирования, объемах, химическом составе и свойствах осадков очистных сооружений производственных сточных вод автотранспортных предприятий. Даны примеры технологических решений по обезвоживанию образующихся в процессе очистки шламов. Рассмотрены технологические аспекты процесса интенсификации механического обезвоживания уплотненных осадков с использованием высокомолекулярных полиэлектролитов. Представлены данные лабораторных экспериментов по выбору типа флокулянта, его дозы, технологических параметров процесса, а также результаты определения влажности обезвоженных осадков, полученные на модели барабанного вакуум-фильтра. Приведены примеры эффективных обезвоживающих аппаратов отечественного производства и их технические характеристики, рекомендации и критерии их выбора, а также факторы, оказывающие влияние на эксплуатационные параметры обезвоживающего оборудования. Установлено, что наилучшая обезвоживающая способность барабанных вакуум-фильтров (остаточная влажность шламов от 66 до 83) может быть достигнута при применении катионного флокулянта ВПК-402 для осадков различных производственных цехов автотранспортного предприятия.Information on the conditions of generation, volumes, chemical composition and properties of sludge generated at the industrial wastewater treatment facilities of motor transport enterprises is provided. Examples of process engineering solutions for dewatering sludge generated during the wastewater treatment process are given. The technological aspects of enhancing mechanical dewatering of thickened sludge using high-molecular polyelectrolytes are considered. The data of laboratory experiments on choosing the type of flocculant, its dose, technological parameters of the process, as well as the results of determining the moisture content of dewatered sludge obtained in a model of a drum vacuum filter are presented. Examples of effective domestically produced dewatering apparatus and their technical characteristics, recommendations and criteria for their selection, as well as factors influencing the operational parameters of the dewatering equipment are given. It is found that the highest dewatering capacity of drum vacuum filters (residual sludge moisture content from 66 to 83) can be achieved by using VPK-402 cationic flocculant for processing sludge generated at the workshop premises of a motor transport enterprise.

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