Package Technology of Treatment of Seepage Waters at Municipal Solid Waste Landfills

Trifonova, T A; Povorov, A.A.; Shirkin, Leonid; Selivanov, Oleg; Ilina, Marina

doi:10.18412/1816-0395-2015-11-4-9

Cited by 5 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such effluents cannot be directly discharged into the surface reservoirs [8][9][10]. Taking into account the existing MPC for contaminants in reservoirs, any highly mineralized effluents should be appropriately treated prior the discharge [11][12][13]. Thus, thermal power plants majority faces the problem of salt concentrate utilization.…”

Section: Introductionmentioning

confidence: 99%

The Development of Environmentally Safe Lithification Technology for Liquid Salt Concentrates From Thermal Power Plants

2023

IRJMETS

View full text Add to dashboard Cite

The paper presents the results of the development of environmentally safe lithification technology for liquid salt concentrates from water treatment facilities of thermal power plants. Sodium polyacrylate has been proposed as the basic moisture-absorbing component being a part of the polycomponent sorbent, used in the liquid salt concentrates lithification. Optimal mixtures of a multicomponent sorbent containing both sorbents and astringent mineral components have been developed. The optimal ratio of sodium polyacrylate and liquid salt concentrate is 1:40 (in weight parts). The toxicity determination of the produced samples by biotesting revealed the possibility of manufacturing safe solid product of 5th hazard class, which can be used as technical reclamation soil of the disturbed lands.

show abstract

Section: Introductionmentioning

confidence: 99%

The Development of Environmentally Safe Lithification Technology for Liquid Salt Concentrates From Thermal Power Plants

2023

IRJMETS

View full text Add to dashboard Cite

show abstract

“…Membrane desalination is also increasingly used in the treatment of solid waste landfills leachate. The treatment of highly concentrated waste leachate is a more complex multi-stage technological process [6][7][8][9]. It depends on the complex and unique composition of contaminated leachate, and the treatment process of such wastewater is studied in the differentiated manner and simultaneously with the search for the most appropriate integrated technologies, applying experimental installations if possible.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Membrane Separation Effectiveness for Highly Concentrated Aqueous Media Applying Two-stage Reverse Osmosis Plant

Trifonova¹

2020

IJETER

View full text Add to dashboard Cite

The research considers the issues of evaluating membrane separation efficiency for highly concentrated aqueous media by reverse osmosis. The pilot two-stage reverse osmosis plant was used for the research. The specific membrane capacity and concentration rate were chosen as test parameters determining the membrane separation efficiency for highly concentrated aqueous media. Highly concentrated leachate from solid waste landfill of chemical oxygen demand up to 10700 mgO 2 /l and 400 mg•eqv/l alkalinity were used as highly mineralized water medium for testing, applying two-stage reverse osmosis plant. It resulted in determining optimal technological parameters of highly mineralized leachate processing: operating pressure for the 1-st stage reverse osmosis separation -60 kgf/cm 2 , concentration rate of the initial solution -by 2.9 times; operating pressure for the 2-nd stage reverse osmosis separation -15 kgf/cm 2 , concentration rate of the 1st stage permeate -by 9 times. The research revealed the positive effect of preliminary acidification stage of highly concentrated aqueous media with high alkalinity for membrane separation process.

show abstract

“…Besides evaporation is used to neutralize small amounts of highly concentrated effluents, if other treatment methods are not only economically ineffective, but also practically difficult to implement. The main aqueous technological systems, which processing by evaporation is advisable, include highly mineralized industrial waste water of enterprises (eluates, saline effluents of galvanic industries), desalination reverse osmosis concentrate plants [1]- [3], heat power plants waste water, spent lubricants, etc.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Aqueous Solutions Concentration Efficiency of Mineral Salts and Organic Media Applying Rotary-Film Evaporator for Natural and Waste Water Treatment

Trifonova¹,

Stoletovs²

2019

IJETER

View full text Add to dashboard Cite

The paper focus is the efficiency evaluation of aqueous solutions concentration of mineral salts and organic media by evaporation applying rotary-film evaporator with hinged blades. The volume flow rate of the initial solutions (irrigation density) and solutions viscosity were chosen as independent experimental parameters, which determine the hydrodynamic mode of the film movement in the rotary film evaporator. An experimental rotary-film evaporator with hinged blades was used for the research. According to the experimental results, the dependence of the concentration degree in the rotary film evaporator on the irrigation value and the viscosity of the initial solutions was defined. It shows that the concentration in the rotary-film evaporator is mostly effective at the irrigation density of 3.5 l/h, and for viscous solutions (≈ 2 MPa•s) at minimum irrigation values (≈ 1 l/h).

show abstract

Package Technology of Treatment of Seepage Waters at Municipal Solid Waste Landfills

Cited by 5 publications

References 0 publications

The Development of Environmentally Safe Lithification Technology for Liquid Salt Concentrates From Thermal Power Plants

The Development of Environmentally Safe Lithification Technology for Liquid Salt Concentrates From Thermal Power Plants

Evaluating Membrane Separation Effectiveness for Highly Concentrated Aqueous Media Applying Two-stage Reverse Osmosis Plant

Assessment of Aqueous Solutions Concentration Efficiency of Mineral Salts and Organic Media Applying Rotary-Film Evaporator for Natural and Waste Water Treatment

Contact Info

Product

Resources

About