Efficient Solar Domestic and Industrial Sewage Purification via Polymer Wastewater Collector

The paper presents the results of the long-standing investigations of the problem of the industrial sewage purification in the process of gold mining and improvement of the technological procedure with the use of the higher water vegetation (hydrophytes) in Priamurye. The extent of their purification with biological method turned to be significantly higher than with the chemical method used at present at the study mining enterprise.

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New Hydraulic Filters, Devices, and Installations for Industrial Sewage Purification

Chemical and Petroleum Engineering ◽

10.1007/s10556-018-0440-0 ◽

2018 ◽

Vol 54 (1-2) ◽

pp. 63-68

Author(s):

V. V. Burenin

Keyword(s):

Sewage Purification ◽

Industrial Sewage

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The “Amines” Process of Sewage Purification

Scientific American ◽

10.1038/scientificamerican11011889-105bbuild ◽

1889 ◽

Vol 8 (5build) ◽

pp. 105-105

Keyword(s):

Sewage Purification

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Operation intensification methods of aggressive industrial sewage neutralization facilities

Ferrous Metallurgy Bulletin of Scientific Technical and Economic Information ◽

10.32339/0135-5910-2020-11-1149-1153 ◽

2020 ◽

Vol 76 (11) ◽

pp. 1149-1153

Author(s):

N. S. Tsarev ◽

V. I. Aksenov ◽

I. I. Nichkova

Keyword(s):

Cold Water ◽

Specific Productivity ◽

Technological Properties ◽

Technological Parameters ◽

Preliminary Heating ◽

Sediment Treatment ◽

Circulating Water ◽

Equipment Operation ◽

Sediment Volume ◽

Industrial Sewage

To neutralize the waste pickling solutions and rinsing water, resulting from cleaning metal products s surface of rust by acids solutions, lime is used. Being cheap, this method of sewage neutralization has considerable drawbacks. Forming in the technological pipes strong gypsum depositions and low specific productivity of the equipment for sediment dewatering are most significant of them. Characteristic of aggressive industrial sewage, formed at pickling of ferrous metals presented. Methods of elimination of drawbacks of industrial sewage neutralization by lime considered, including stabilization of neutralized industrial sewage and control of properties of the sediment formed. It was noted, that stability of the circulating water can be provided by accelerating of crystallization of the forming gypsum sediments by introducing in it fine priming powder and heating the neutralized water up to 65-70 °С followed by thermal softening of a part of circulating water, removed out of the circulating system. It was shown, that the heating of the water and the ongoing changes of the composition and properties of the sediment result in decrease of filtration resistance 2-3 folds, increase of deposition speed 3-4 folds and decrease the sediment volume 1.5-2 folds comparing with lime neutralization in cold water. Calculated dozes of lime at the heating were taken the same as at the regular lime neutralization. Elimination of the circulating water oversaturation by bi-water gypsum can be reached also by addition into the water of powder-like gypsum pulp - priming powder for microcrystals of the gypsum, followed by aeration during 30-40 min. This method was tested under industrial conditions. Technological properties of the forming sediment can be improved by sediment treatment by flocculants and preliminary heating of the neutralized water up to 65-70 °С. Control of technological properties of the sediment is done by addition of flocculants and heating of the neutralized water. Recommendations for improving operation of the neutralization facilities presented with indicating particular technological parameters of the equipment operation for sewage and sediment treatment.

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Effect of Wastewater on the Soil and Irrigation Process: A Laboratory Study

10.21523/gcj5.17010105 ◽

2017 ◽

Vol 1 (1) ◽

pp. 46-55 ◽

Cited By ~ 1

Author(s):

Athar Hussain ◽

Manjeeta Priyadarshi ◽

Saif Said ◽

Suraj Negi

Keyword(s):

Heavy Metals ◽

Tap Water ◽

Sewage Treatment ◽

Daily Intake ◽

Sewage Treatment Plant ◽

Treatment Plant ◽

Treated Wastewater ◽

Surface Water Resources ◽

Industrial Sewage ◽

Concentration Levels

Most of the industrial sewage effluents used for irrigation contains heavy metals which cause toxicity to crop plants as the soils are able to accumulate heavy metal for many years. The vegetables grown for the present study were irrigated with treated wastewater brought from a nearby full-scale sewage treatment plant at different compositions along with tap water as a control. The concentration levels of the Cd, Co, Cu, Mn and Zn in the soil were found to below the toxic limits as prescribed in literature. Daily Intake Metals (DIM) values suggest that the consumption of plants grown in treated wastewater and tap water is nearly free of risks, as the dietary intake limits of Cu, Fe, Zn and Mn. The Enrichment Factor for the treated wastewater irrigated soil was found in order Zn> Ni> Pb> Cr> Cu> Co> Mn> Cd. Thus, treated wastewater can be effectively used for irrigation. This will have twofold significant environmental advantages: (1) helpful to reduce the groundwater usage for irrigation and (2) helpful to reduce the stress on surface water resources.

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Sludge Treatment and Disposal Systems for Rural Areas in Germany

Water Science & Technology ◽

10.2166/wst.1993.0190 ◽

1993 ◽

Vol 27 (9) ◽

pp. 159-171 ◽

Cited By ~ 3

Author(s):

Eberhard Steinle

Keyword(s):

Sewage Sludge ◽

Rural Areas ◽

Public Awareness ◽

Sewage Treatment ◽

Treatment Needs ◽

Sludge Treatment ◽

Sewage Treatment Plants ◽

Sewage Purification ◽

Treatment And Disposal ◽

Nitrogen Phosphorus

First an overview of the systems currently in use and being discussed for sludge treatment is presented will) particular emphasis on distinguishing between the object of the system (conditioning objective of the various phases in the system) and a system concept (concept of various phases of the system in sequence to attain the disposal objective). More detailed information is given as to the salient systems as used with smaller sewage treatment plants in rural areas, such as digestion, dewatering, hygienization, composting and thermal drying. A further item of discussion is how sludge treatment influences the sewage treatment process. For the critical emissions (nitrogen, phosphorus) demanded in Germany, and thus for the degree of sewage treatment required, the load of the sewage treatment system resulting from sludge treatment needs to be taken into account. Accordingly, operation of sludge treatment and sewage purification must always be harmonized. The extent of these return loads also limits the spatial centralization of the system phases; this applies in particular to smaller sewage treatment plants in rural areas. In conclusion, an attempt is made to present a perspective for the agricultural utilization of such sludge in Germany. Since the critical values for emissions have been further tightened by new regulations, thus considerably elevating the associated sophistication of monitoring techniques, it is to be expected that the use of sewage sludge in agriculture will also be further reduced in rural areas, especially since public awareness of emission control has considerably reduced the acceptance of sewage sludge as fertilizer.

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Investigating Land Based Disposal of Bolivar Reclaimed Water, South Australia

Water Science & Technology ◽

10.2166/wst.1993.0022 ◽

1993 ◽

Vol 27 (1) ◽

pp. 87-96 ◽

Cited By ~ 2

Author(s):

G. Schrale ◽

R. Boardman ◽

M. J. Blaskett

Keyword(s):

Current Practice ◽

Sewage Treatment ◽

Reclaimed Water ◽

South Australia ◽

Working Party ◽

Underground Water ◽

Environmental Cost ◽

Seagrass Beds ◽

Environment Protection ◽

Industrial Sewage

The Bolivar Sewage Treatment Works (STW) processes the urban and industrial sewage from the northern and eastern suburbs of Adelaide. The treatment capacity is equivalent to the sewage production of 1.1 million people. The disposal of more than 40 000 ML of reclaimed water into the sea has caused a progressive degradation of about 950 ha of seagrass beds which threatens the sustainability of the fisheries and marine ecosystems of Gulf St. Vincent. The current practice will no longer be viable to achieve compliance with the SA Marine Environment Protection Act, 1990. A Inter-Departmental Working Party recommmended that the Bolivar reclaimed water be disposed by irrigation of suitable land on the coastal plains north of Adelaide. They proposed the construction of two pipelines: a 12 km long pipeline to extend the distribution of reclaimed water in the most intense portion of the 3 500 hectares of irrigated horticulture on the Northern Adelaide Plains, and a second, 18 km long pipeline to deliver the remainder to a more northerly site for irrigation of an estimated 4 000 hectares of hardwood plantations. The paper summarizes the findings as they relate to public health, environmental, technical and financial aspects of land based disposal. Land based disposal would completely eliminate the marine degradation and also arrest the over-use of the NAP underground water resources for horticulture. The total net costs over thirty years for land based disposal are about $ 21.8 million. The ‘horticultural' pipeline of the land based disposal scheme is expected to be commercially viable. A shortfall in revenue from the afforestation component is expected and may need to be considered as an environmental cost of ceasing marine disposal.

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