• Title, Summary, Keyword: sludge property

Search Result 63, Processing Time 0.035 seconds

TECHNICAL APPLICATION OF READY MIXED CONCRETE SLUDGE WATER TO CEMENT MATRIX

  • Moon, Han-Young;Shin, Hwa-Cheol
    • Proceedings of the IEEK Conference
    • /
    • /
    • pp.555-559
    • /
    • 2001
  • A by-product, waste sludge water produced from ready mixed concrete(remicon) factories may affect our environmental contamination if it is discharged without proper waste disposal. In Korea, all waste sludge water has been recycled in the way of mixing water of remicon, but the quality of the concrete then produced can be deteriorated, so it might cause slump loss or irregular compressive strength. In this study, waste sludge water is divided into two parts, remicon sludge and residual water in order to make it's property more stable. Then, the remicon sludge and high-alkaline residual water were used as admixture and alkali activator respectively. In this paper we research about quality of with remicon sludge and residual water and performed the fundamental properties of cement matrix mixed with remicon sludge and residual water.

  • PDF

LAND FARMING OF WATER PLANT ALUM SLUDGE ON ACID MINERAL SOIL AFFECTED BY ACID WATER

  • Lee, Seung-Sin;Kim, Jae-Gon;Moon, Hi-Soo;Kang, Il-Mo
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
    • /
    • /
    • pp.182-186
    • /
    • 2001
  • An acid forest surface soil as a land farming medium was treated with a water plant alum sludge at 0 to 18%. Indian mustard was grown in the treated soil in a greenhouse for 5 weeks and watered with pH 4 tap water adjusted with a mixed acid (1HNO$_3$: 2H$_2$SO$_4$) during plant growth. Changes in soil property, leachate chemistry, plant growth, and plant uptake of elements by the sludge treatment were determined. The alum sludge treatment increased buffer capacity to acidity, hydraulic conductivity, water holding capacity, and phosphate adsorption of the soil and decreased bulk density and mobility of small particles. The sludge treatment reduced leaching of Al, Mg, K, Na, and root elongation. Plant did uptake less amount of the cations and P but more Ca with the sludge treatment.

  • PDF

Physical and Mechanical Properties of Waterwaste Sludge and Stabilized Sludge (슬러지 및 안정화시킨 하수 슬러지의 물리적.역학적 특성)

  • 송창섭
    • Magazine of the Korean Society of Agricultural Engineers
    • /
    • v.41 no.6
    • /
    • pp.97-104
    • /
    • 1999
  • An experimental investigation was carried out to study the feasibility of using the stabiliozed sludge, as a backfill and cutoff-water materials for embankment structures. For stabilizing of sludge, hydrated lime and quick lime were used as additive, and a series of tests were performed on the sludge and the stabilized sludge to examine their physical and mechanical properties , compaction, compressive strength, hydraulic conuctivity and consolidation characteristics. From the test results, physical and mechanical properties of the stabilized sludge were improved as compared with the sludge. Especially from the viewpoint of physcial property, consolidation or settlement and cutoff-water, quick lime is more effective than the hydrated lime as a stabilization addtive. But, viewpoint of compaction and shear strength, hydrated lime is more effective than the quick lime as a atabilization additive. As a result of this study, it was found that the stabilized sludge can be developed the backfill and cutoff-water materials, improved the stabilizing method of sludge.

  • PDF

Hydration-Setting Property of Slaked Lime and Artificial Zeolite Synthesized with Top Water Sludge (정수슬러지로 합성한 인공제올라이트와 소석회의 수화응결특성)

  • La, Jung-Min;Choi, Duk-Jin;Kim, Min-Gil;Kim, Jin-Man
    • Journal of the Korean Recycled Construction Resources Institute
    • /
    • v.5 no.4
    • /
    • pp.122-128
    • /
    • 2010
  • On the international provision on prohibition of ocean dumping of waste, tap water sludge has been buried or recycled on th low value added product as landfill. Due to the tap water sludge having high inorganic content, differing from the sewage sludge, it is possible to use as a usable resource by suitable process. We have studied on hydro thermal processing of tap water sludge with phosphoric acid and finally synthesize a artificial zeolite having a deodorization property. To use it as a building material, it has to be solidification. This study is on the properties of artificial zeolite synthsized and solidification properties by various types of solidifier. It is showed that the slaked lime is the best on setting property and its optimum content is 30-60 weight proportion. Solid by solidified by slaked lime has low strength and excellent deodorization performance, so it is possible to use as a functional pannel as gypsum board.

  • PDF

Adsorption of Heavy Metals on Sludge from the Treatment Process of Acid Mine Drainage (산성광산배수(AMD) 처리(處理) 슬러지의 중금속(重金屬) 흡착(吸着) 특성(特性))

  • Song, Young-Jun;Lee, Gye Seung;Shin, Kang Ho;Kim, Youn-Che;Seo, Bong Won;Yoon, Si-Nae
    • Journal of the Korean Institute of Resources Recycling
    • /
    • v.21 no.4
    • /
    • pp.35-43
    • /
    • 2012
  • This study was carried out for the purpose of obtaining basic data to utilize the AMD sludge as sorbent for heavy metal ions. The sludge from the treatment process of Acid Mine Drainage mainly consists of fine iron hydroxide or iron oxide hydrate and calcite, and the fine iron hydroxide or iron oxide hydrate has a property of adsorbing heavy metal ions. In this study, we investigated the physical property of the AMD sludge like as mineral composition, particle size and shape and chemical composition and also investigated the influence of dosage of sludge, adsorbing time, pH, initial concentration and sintering temperature on the adsorption of heavy metal ions.

The material properties study of a construction sludge for recycling (건설오니(建設汚泥) 재활용(再活用)을 위한 재료적(材料的) 특성(特性) 연구(硏究))

  • Soung, Jin-Kyeong;Kim, Soon-Ho;Bae, Won-Tae;Jun, Myung-Hoon
    • Journal of the Korean Institute of Resources Recycling
    • /
    • v.16 no.4
    • /
    • pp.40-46
    • /
    • 2007
  • This research constructed property analysis for an high additional value construction materials. We try to utilize by the addition material of soil stabilizer. It was described to the material properties analysis of a sludge. A sample used 4 kinds of filtration cake which occurs by 4 companies and 3 kinds of sludge before filtration. ph of a sludge, a particle analysis and a scanning electron microscope observation were performed. We analyzed on the chemical ingredient by XRF, the phase by XRD, observed and analyzed the thermo-property of the sludge and the amount of the volatile constituent by TG-DTA.

Research for geotechnical properties of Fly ash-Lime-Sludge mixture (플라이 애시-생석회-하수처리 슬러지 혼합물의 지반공학적 특성 연구)

  • 구정민;권무남;이상호
    • Magazine of the Korean Society of Agricultural Engineers
    • /
    • v.44 no.3
    • /
    • pp.122-135
    • /
    • 2002
  • Although fly ash possesses viable engineering properties, an overwhelming majority of fly ash from coal combustion is still placed in storage or disposal sites. Similarly, sludges generated from various water treatment operations are predominantly subjected to the fate of land disposal. To prepare sludges fur land disposal typically requires time consuming dewatering schemes, which can become extremely difficult to execute depending upon the composition of the sludge and its affinity for water. This study was undertaken to reuse fly ash and sludge as construction materials. This paper includes geotechnical properties of fly ash and fly ash-lime-sludge mixture and results of compaction test, UU-test, falling head test, leaching test and CBR test. The effect on mixing fly ash with sludge and lime and the effect of curing period and the results are obtained from this test.

Thermal insulation property according to pearlite addition ratio of non cement matrix using paper ash and polysilicon sludge (제지애시와 폴리실리콘 슬러지를 활용한 무시멘트 경화체의 펄라이트 첨가율에 따른 단열특성)

  • Shin, Jin-Hyun;Kim, Dae-Yeon;Lee, Dong-Hoon;Lee, Sang-Soo
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • /
    • pp.165-166
    • /
    • 2018
  • Researches for the development of renewable energy as a fuel substitute for global warming and depletion of petroleum resources are actively being carried out. Among them, the annual growth rate of PV generation is 20.73%, which is higher than other renewable energy sources. However, the production of 1 ton of polysilicon, which is known as a raw material for solar power generation panels, generates 2 tons of waste. As the demand for PV panels increases, the problem of the treatment of polysilicon sludge is attracting attention, and studies on the utilization of polysilicon sludge are needed. Therefore, in this study, the applicability of polysilicon sludge treated as industrial waste to the lightweight panel for architectural purposes was examined.

  • PDF

Strength Property of Municipal Wasts Ash Hardening using Fly-Ash and Paper Sludge Ash (플라이 애시 및 제지슬러지 애시를 혼입한 도시 쓰레기 소각재 경화체의 강도적 특성)

  • 김재신;고대형;문경주;소양섭
    • Proceedings of the Korea Concrete Institute Conference
    • /
    • /
    • pp.333-338
    • /
    • 2000
  • The purpose of this study is to evaluate the compressive strength properties of municipal waste ash hardening using the unrefined fly-ash and paper sludge ash and to offer basic data to someone for recycling municipal waste ash. Unrefined fly-ash and paper sludge ash are used with admixture. MWA are tested that grading, specific gravity and pH value and observed microsructure of particle with SEM. The compressive strengths of MWA hardening which is mixed with regular ratio according to each admixture are measured. In the results of test, fly-ash is very effective for reducing content of cement by 50% in the recycling of MWA. But proper content mixed paper sludge ash is recommend by about 20% in binder.

  • PDF