KR20040051009A - Method and device for sludge treatment using high voltage pulse - Google Patents

Method and device for sludge treatment using high voltage pulse Download PDF

Info

Publication number
KR20040051009A
KR20040051009A KR1020020078829A KR20020078829A KR20040051009A KR 20040051009 A KR20040051009 A KR 20040051009A KR 1020020078829 A KR1020020078829 A KR 1020020078829A KR 20020078829 A KR20020078829 A KR 20020078829A KR 20040051009 A KR20040051009 A KR 20040051009A
Authority
KR
South Korea
Prior art keywords
sludge
high voltage
voltage pulse
treatment
anaerobic digestion
Prior art date
Application number
KR1020020078829A
Other languages
Korean (ko)
Other versions
KR100492297B1 (en
Inventor
이의신
유희찬
홍승모
박현수
Original Assignee
(주)대우건설
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)대우건설 filed Critical (주)대우건설
Priority to KR10-2002-0078829A priority Critical patent/KR100492297B1/en
Publication of KR20040051009A publication Critical patent/KR20040051009A/en
Application granted granted Critical
Publication of KR100492297B1 publication Critical patent/KR100492297B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/02—Biological treatment
    • C02F11/04—Anaerobic treatment; Production of methane by such processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/487—Treatment of water, waste water, or sewage with magnetic or electric fields using high frequency electromagnetic fields, e.g. pulsed electromagnetic fields
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Electromagnetism (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: Provided are a method and an apparatus for treating sludge, which use high-power pulse to disrupt cell of microorganisms, thereby converting non-degradable material to biologically degradable material. CONSTITUTION: The method comprises the steps of (a) storing excess sludge discharged from a secondary sedimentation tank in a sludge storage tank, (b) thickening the sludge by a centrifugal machine, (c) digesting the thickened sludge in an anaerobic digestion tank, (d) applying high-power pulse to the digested sludge, thereby disrupting cells of microorganisms in the sludge and converting non-degradable material of the sludge to degradable state, and (e) digesting the sludge treated at the step (d) in an anaerobic digestion tank.

Description

고전압 펄스를 이용한 슬러지 처리 방법 및 장치{Method and device for sludge treatment using high voltage pulse}Method and device for sludge treatment using high voltage pulse {Method and device for sludge treatment using high voltage pulse}

본 발명은 슬러지를 처리하는 방법 및 장치에 관한 것으로서, 더욱 상세하게는, 하수처리공정에서 배출되는 잉여슬러지를 고전압 펄스로 처리함으로써 잉여슬러지내의 미생물 세포벽을 파괴하고, 생물학적 난분해성 물질을 생물학적으로 분해가 용이한 물질로 전환하여 혐기성 소화 효율을 향상시키는, 고전압 펄스를 이용한 슬러지 처리 방법 및 장치에 관한 것이다.The present invention relates to a method and apparatus for treating sludge, and more particularly, by treating the excess sludge discharged from the sewage treatment process with high voltage pulses to destroy microbial cell walls in the excess sludge and biologically decompose biological hardly decomposable substances. The present invention relates to a sludge treatment method and apparatus using a high voltage pulse, which is converted into an easy substance to improve anaerobic digestion efficiency.

하수처리장에서 슬러지 안정화를 위해 많이 사용하는 혐기성 소화 공법은 혐기성 미생물에 의하여 슬러지내의 유기물을 분해하여 최종부산물로 이산화탄소와 메탄가스를 얻는 슬러지 안정화에 적용되는 대표적인 생물학적 처리 방법이다. 그러나, 호기성 처리와 달리 처리에 소요되는 시간이 길고, 슬러지의 유입, 혼합 등 필요한 시설이 증가하며, 특히 관련 혐기성 미생물이 주변 환경에 민감하게 반응하기 때문에 조작에 어려움이 많아 이용이 제한적이었다.Anaerobic digestion, which is widely used for sludge stabilization in sewage treatment plants, is a representative biological treatment method applied to sludge stabilization which decomposes organic matter in sludge by anaerobic microorganisms and obtains carbon dioxide and methane gas as final by-products. However, unlike aerobic treatment, the treatment takes a long time, increases the necessary facilities such as inflow and mixing of sludge, and in particular, due to the difficulty in operation because the related anaerobic microorganisms are sensitive to the surrounding environment, the use was limited.

하수처리장에서 발생하는 유기성 폐기물은 하수 등에 섞여있는 분해가 용이한 음식물찌꺼기 및 현탁물질의 중력 침전에 의해 생성된 일차슬러지(생슬러지)와 유기물을 분해하여 증식한 미생물의 농축된 형태인 이차슬러지(잉여슬러지)가 있다. 이 가운데 일차슬러지는 혐기성 소화 효율이 높고 분해가 용이하나, 이차슬러지는 생물학적 분해가 용이한 물질들이 호기성 공정에서 이미 제거된 상태이고, 세포내 물질의 분해가 곤란하여 안정화 효율이 낮고, 상당한 시간(15일 이상)이 요구된다. 따라서, 많은 연구자들이 이차슬러지의 세포벽을 파괴하여 혐기성 소화효율을 향상시키기 위해 노력해왔다.Organic waste from sewage treatment plant is composed of primary sludge (raw sludge) produced by gravity sedimentation of easily decomposed food waste mixed with sewage and suspended solids and secondary sludge (concentrated form of microorganisms that have grown by decomposing organic matter). Surplus sludge). Among these, primary sludge has high anaerobic digestion efficiency and is easy to decompose, but secondary sludge has already been removed from the aerobic process by biodegradable materials, and it is difficult to decompose intracellular materials, and thus, stabilization efficiency is low and considerable time ( More than 15 days). Therefore, many researchers have been trying to improve anaerobic digestion efficiency by destroying the cell walls of secondary sludge.

기존에 사용되어온 세포벽 파괴 방법으로는 기계적 파쇄법, 화학적(산 또는 알칼리) 가수분해법, 고온·고압 파괴법 등이 알려져 있으나, 이들 방법들은 회분식 공정으로 대규모의 공정에 적용하기 어렵고 과다한 에너지 소모로 비경제적이라는 단점이 있었다.Conventional methods of cell wall destruction are known as mechanical fracturing, chemical (acid or alkali) hydrolysis, high temperature and high pressure destruction, but these methods are batch processes that are difficult to apply to large scale processes and are expensive due to excessive energy consumption. There was a disadvantage of being economic.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로서, 본 발명의목적은, 하수처리공정에서 배출되는 잉여슬러지를 고전압 펄스로 처리함으로써 잉여슬러지내의 미생물 세포벽을 파괴하고, 잉여슬러지내 생물학적 난분해성 물질을 생물학적으로 분해하기 용이한 물질로 전환하여 혐기성 소화 효율을 향상시키는, 고전압 펄스를 이용한 슬러지 처리 방법 및 장치를 제공하는 것이다.The present invention is to solve the above conventional problems, the object of the present invention is to destroy the microbial cell wall in the excess sludge by treating the excess sludge discharged from the sewage treatment process with a high voltage pulse, biologically difficult to decompose in the excess sludge It is to provide a sludge treatment method and apparatus using a high voltage pulse, which improves the anaerobic digestion efficiency by converting the material into a biologically easy decomposition material.

도 1은 본 발명에 따른 고전압 펄스를 이용한 슬러지 처리 방법의 일실시예로서 고전압 펄스 처리된 슬러지를 혐기성 소화조로 투입시키는 공정도이다.1 is a process diagram for introducing a high voltage pulsed sludge into an anaerobic digester as an embodiment of the sludge treatment method using a high voltage pulse according to the present invention.

도 2는 본 발명에 따른 고전압 펄스를 이용한 슬러지 처리 방법의 다른 실시예로서 고전압 펄스 처리 전에 혐기성 소화공정을 거치는 공정도이다.FIG. 2 is a flowchart illustrating an anaerobic digestion process before a high voltage pulse treatment as another embodiment of the sludge treatment method using the high voltage pulse according to the present invention.

도 3은 본 발명에 따른 고전압 펄스를 이용한 슬러지 처리 방법의 또 다른 실시예로서 고전압 펄스 처리 전에 혐기성 소화공정을 거치고, 고전압 펄스 처리된 슬러지를 혐기성 소화조에 재투입하는 공정도이다.3 is a flowchart illustrating a sludge treatment method using a high voltage pulse according to the present invention, after undergoing an anaerobic digestion process before a high voltage pulse treatment, and re-injecting the high voltage pulse treated sludge into an anaerobic digester.

상기한 목적을 달성하기 위하여 본 발명에 의한 고전압 펄스를 이용한 슬러지 처리 방법은, 하수처리장에서 발생하는 하수슬러지에 고전압 펄스를 가하여 처리하는 방법으로서, 하수처리장의 2차침전지에서 배출되는 잉여슬러지를 슬러지 저류조에 저장하는 단계(a); 상기 단계(a)의 잉여슬러지를 원심농축기를 거쳐 농축시키는 단계(b); 상기 단계(b)의 농축된 잉여슬러지를 고전압 펄스 발생 장치를 통해 고전압 펄스 처리하는 단계(c); 및 상기 단계(c)의 고전압 펄스 처리된 슬러지를 처리슬러지 저류조에 저장하는 단계(d)를 포함하여 구성되는 것을 특징으로 한다.In order to achieve the above object, the sludge treatment method using the high voltage pulse according to the present invention is a method of treating by applying a high voltage pulse to the sewage sludge generated in the sewage treatment plant, and the sludge discharged from the secondary sedimentation battery of the sewage treatment plant. Storing in a storage tank (a); Concentrating the excess sludge of step (a) through a centrifugal concentrator (b); (C) subjecting the concentrated surplus sludge of step (b) to a high voltage pulse through a high voltage pulse generator; And storing (d) the high voltage pulsed sludge of step (c) in the treated sludge storage tank.

본 발명에 의한 고전압 펄스를 이용한 슬러지 처리 방법에 있어서, 상기 단계(d) 후 고전압 펄스 처리된 슬러지를 혐기성 소화조로 투입시켜 혐기성 소화공정을 거치는 것을 특징으로 한다.In the sludge treatment method using a high voltage pulse according to the present invention, after the step (d) is characterized in that the high-voltage pulsed sludge is put into an anaerobic digester to undergo an anaerobic digestion process.

본 발명에 의한 고전압 펄스를 이용한 슬러지 처리 방법에 있어서, 상기 단계(b)의 원심농축 후 상기 단계(c)의 고전압 펄스 처리 전에, 농축 슬러지를 혐기성 소화조로 투입시켜 혐기성 소화공정을 거치는 단계를 더 포함하는 것을 특징으로 한다.In the sludge treatment method using the high voltage pulse according to the present invention, after the centrifugal concentration of the step (b), before the high voltage pulse treatment of the step (c), the step of adding the concentrated sludge to the anaerobic digestion tank to undergo an anaerobic digestion process It is characterized by including.

본 발명에 의한 고전압 펄스를 이용한 슬러지 처리 방법에 있어서, 상기 단계(b)의 원심농축 후 상기 단계(c)의 고전압 펄스 처리 전에, 농축 슬러지를 혐기성 소화조로 투입시켜 혐기성 소화공정을 거친 후, 상기 단계(c)의 고전압 펄스 처리를 하고, 고전압 펄스 처리된 슬러지를 혐기성 소화조로 재투입시키는 것을 특징으로 한다.In the sludge treatment method using the high voltage pulse according to the present invention, after the centrifugal concentration of the step (b), before the high voltage pulse treatment of the step (c), the concentrated sludge is put into an anaerobic digestion tank and subjected to the anaerobic digestion process, The high voltage pulse treatment of step (c) is carried out, and the high voltage pulsed sludge is introduced into the anaerobic digester.

본 발명에 의한 고전압 펄스를 이용한 슬러지 처리 장치는, 슬러지 저류조; 원심농축기; 고전압 펄스 발생 장치; 처리슬러지 저류조; 및 슬러지를 이송시키는 수단을 포함하여 구성되는 슬러지 처리 장치로서, 상기 고전압 펄스 발생 장치는 고전압 발생 장치 및 수중방전 장치로 구성되는 것을 특징으로 한다.The sludge treatment apparatus using the high voltage pulse by this invention is a sludge storage tank; Centrifugal concentrator; High voltage pulse generator; Treated sludge storage tank; And a sludge processing apparatus comprising means for transferring sludge, wherein the high voltage pulse generator is comprised of a high voltage generator and an underwater discharge device.

본 발명에 의한 고전압 펄스를 이용한 슬러지 처리 장치에 있어서, 상기 슬러지 처리 장치는 혐기성 소화조를 더 포함하는 것을 특징으로 한다.In the sludge treatment apparatus using the high voltage pulse according to the present invention, the sludge treatment apparatus further comprises an anaerobic digester.

이하, 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.

대부분의 박테리아와 같은 미생물은 오염물질을 소화하고 번식하여 더 이상 먹을 오염물질이 없으면 미래를 도모하기 위하여 포낭을 뒤집어쓰고 깊은 잠에 들어간다. 이러한 박테리아는 쉽게 제거할 수 없어 일부에서는 전자빔을 쐬어서 박테리아를 죽이기도 한다. 그러나, 박테리아가 전자빔으로 죽을 지라도, 그 박테리아 내부에 있는 세포질은 여전히 포낭 속에 갇혀 있어 압력을 가해도 탈수가 잘되지 않기 때문에 박테리아의 포낭을 깰 방법이 있어야 한다.Microorganisms, such as most bacteria, digest and contaminate pollutants so that when they no longer have contaminants to eat, they overturn the cysts and go to deep sleep. These bacteria cannot be easily removed, and in some cases, electron beams are used to kill them. However, even if a bacteria dies with an electron beam, the cytoplasm inside the bacteria is still trapped in the cysts, so under pressure there is no way to dehydrate them, so there must be a way to break them.

본 발명에서는 박테리아의 포낭을 깨기 위하여 고전압 고출력 전기 시스템을 이용한다. 펄스 상승시간(Rise Time)과 펄스 하강시간(Fall Time)이 빠른 고전위 펄스를 두 전극에 보내면서 전극 사이로 박테리아가 들어있는 물을 통과시키면, 전장의 급격한 변화 때문에 박테리아의 세포껍질이 과격한 진동을 하게 되고 이로 인하여 세포벽이 파괴된다.In the present invention, a high voltage high power electrical system is used to break the cysts of bacteria. When a high-potential pulse with fast pulse rise time and fall time is sent to two electrodes and the bacteria-containing water is passed between the electrodes, the cell shell of the bacterium undergoes radical vibration due to the rapid change in the electric field. This destroys the cell wall.

또한, 외부에서 세포에 전기장을 가하면 세포막의 변화가 유발된다. 즉, 세포막 내·외부의 전위차가 임계값을 넘게 되면 전하 전달 분자(charge carrying molecules)간에 반발력이 생기며 결과적으로 세포막에 세공(pore)을 형성하게 된다.In addition, when an electric field is applied to a cell from the outside, the cell membrane is changed. That is, when the potential difference inside and outside the cell membrane exceeds the threshold, repulsive force is generated between charge carrying molecules, and as a result, pores are formed in the cell membrane.

더 효과적인 방법은 두 전극 사이에 박테리아가 들어 있는 물을 보낼 때에 공기 방울을 혼합하면 공기방울이 섞여있는 물이 흐르는 동안 높은 전위가 두 전극에 나타나며 강한 전장이 물과 공기 방울 속에 유도된다. 이 때, 물의 유전율은 8이고 공기의 유전율은 1이기 때문에 물 속보다는 공기 방울 속에 더욱 강한 전장이 유도된다. 이로 인하여 공기 방울 속에서 방전이 일어나게 되고 이 방전으로 인하여 플라즈마가 발생하며 그 속의 기체가 높은 온도로 데워진다. 공기 방울 속 온도가 급격히 올라가면 충격파(Shock Wave)를 만들면서 팽창하게 되는데, 이 충격파가 물 속을 전파해 갈 때 주위에 있는 박테리아의 세포벽이 파괴되어 세포는 죽고 세포 속의 물질은 외부로 방출된다.A more effective method is to mix air bubbles when sending water containing bacteria between the two electrodes, so that a high potential appears at the two electrodes during the flow of the mixed water, and a strong electric field is induced in the water and the air bubbles. At this time, since the permittivity of water is 8 and the permittivity of air is 1, a stronger electric field is induced in air bubbles than in water. As a result, discharge occurs in the air bubbles, and plasma is generated by the discharge, and the gas therein is heated to a high temperature. When the temperature in the air bubble rises rapidly, it creates a shock wave and expands. When the shock wave propagates through the water, the cell wall of the surrounding bacteria is destroyed, the cell dies, and the substance in the cell is released to the outside.

도 1은 본 발명에 따른 고전압 펄스를 이용한 슬러지 처리 방법의 일실시예로서 고전압 펄스 처리된 슬러지를 혐기성 소화조로 투입시키는 공정도이다.1 is a process diagram for introducing a high voltage pulsed sludge into an anaerobic digester as an embodiment of the sludge treatment method using a high voltage pulse according to the present invention.

도 2는 본 발명에 따른 고전압 펄스를 이용한 슬러지 처리 방법의 다른 실시예로서 고전압 펄스 처리 전에 혐기성 소화공정을 거치는 공정도이다.FIG. 2 is a flowchart illustrating an anaerobic digestion process before a high voltage pulse treatment as another embodiment of the sludge treatment method using the high voltage pulse according to the present invention.

도 3은 본 발명에 따른 고전압 펄스를 이용한 슬러지 처리 방법의 또 다른실시예로서 고전압 펄스 처리 전에 혐기성 소화공정을 거치고, 고전압 펄스 처리된 슬러지를 혐기성 소화조에 재투입하는 공정도이다.3 is a flow chart of a sludge treatment method using a high voltage pulse according to the present invention after the anaerobic digestion process before the high voltage pulse treatment, and re-introduced high voltage pulse treated sludge into the anaerobic digester.

이하, 실시예를 들어 본 발명의 구성 및 발명 효과를 보다 상세하게 설명한다. 아래의 실시예는 본 발명의 내용을 설명하나, 본 발명의 내용이 여기에 한정되지는 않는다.Hereinafter, the configuration and the effects of the present invention will be described in more detail with reference to Examples. The following examples illustrate the content of the invention, but the content of the invention is not limited thereto.

<실시예 1><Example 1>

도 1에서와 같이, 고전압 펄스 처리된 슬러지를 혐기성 소화조로 투입시키는 공정을 이용하여 혐기성 소화효율 등을 측정하였다.As shown in FIG. 1, anaerobic digestion efficiency and the like were measured using a process of introducing high voltage pulsed sludge into an anaerobic digester.

본 실시예에서 사용된 펄스발생 전원장치의 전압, 전류 특성은 하기 표 1과 같으며, 실험시 펄스전압 38kV, 펄스전류 0.32A, 펄스반복율 100~150Hz의 운전조건을 유지하였다. 또한, 고전압 방전기의 내부 전극간의 간격은 0.5~1mm를 유지하였다.The voltage and current characteristics of the pulse generating power supply used in this embodiment are shown in Table 1 below, and maintained the operating conditions of the pulse voltage 38kV, pulse current 0.32A, pulse repetition rate 100 ~ 150Hz. In addition, the interval between the internal electrodes of the high voltage discharger was maintained at 0.5 ~ 1mm.

최대펄스전압Pulse voltage 40 kV40 kV 최대펄스전류Pulse current 2~3㎄2 ~ 3㎄ 평균 전력Average power 20㎾20㎾ 펄스반복률(㎐)Pulse repetition rate (㎐) 1~500㎐1 ~ 500㎐ 펄스상승시간(㎱)Pulse Rising Time 250 ㎱250 ㎱ 펄스하강시간(㎲)Pulse fall time (㎲) 4 ㎲4 ㎲ 펄스폭(FWHM)Pulse width (FWHM) 1㎲1㎲

본 실시예에 따라 처리된 슬러지의 성상변화는 하기 표 2와 같다.Property changes of the sludge treated according to this embodiment are shown in Table 2 below.

상기 표 2에서 보는 바와 같이, 본 발명에 따라 고전압 펄스를 이용하여 슬러지를 처리하면, 하수슬러지의 혐기성 소화 효율이 향상되며, 최종 생산되는 메탄가스의 순도도 65∼70％로 증가되고, 발생되는 가스의 총량도 기존 발생량 대비 150％이상 증가되는 효과를 거둘 수 있다.As shown in Table 2, when treating the sludge using a high voltage pulse in accordance with the present invention, the anaerobic digestion efficiency of sewage sludge is improved, the purity of the final produced methane gas is increased to 65 ~ 70%, The total amount of gas can also be increased by more than 150% compared to the existing generation.

이상에서 설명한 바와 같이, 본 발명에 의한 고전압 펄스를 이용한 슬러지 처리 방법은, 하수처리공정에서 배출되는 잉여슬러지를 고전압 펄스로 처리함으로써, 미생물의 세포벽을 파괴하고, 잉여슬러지내 생물학적 난분해성 물질을 생물학적으로 분해하기 용이한 물질로 전환하여 슬러지를 감량시키고, 혐기성 소화 효율을 향상시킬 수 있다.As described above, in the sludge treatment method using the high voltage pulse according to the present invention, by treating the excess sludge discharged from the sewage treatment process with the high voltage pulse, the cell wall of the microorganism is destroyed, and the biological hardly decomposable substance in the excess sludge is biologically treated. It is possible to reduce the sludge by converting into a substance that is easy to decompose, and to improve anaerobic digestion efficiency.

Claims (6)

하수처리장에서 발생하는 하수슬러지에 고전압 펄스를 가하여 처리하는 방법으로서,As a method of applying high voltage pulse to sewage sludge generated in sewage treatment plant, 하수처리장의 2차침전지에서 배출되는 잉여슬러지를 슬러지 저류조에 저장하는 단계(a);(A) storing the excess sludge discharged from the secondary sedimentation battery of the sewage treatment plant in the sludge storage tank; 상기 단계(a)의 잉여슬러지를 원심농축기를 거쳐 농축시키는 단계(b);Concentrating the excess sludge of step (a) through a centrifugal concentrator (b); 상기 단계(b)의 농축된 잉여슬러지를 고전압 펄스 발생 장치를 통해 고전압 펄스 처리하는 단계(c); 및(C) subjecting the concentrated surplus sludge of step (b) to a high voltage pulse through a high voltage pulse generator; And 상기 단계(c)의 고전압 펄스 처리된 슬러지를 처리슬러지 저류조에 저장하는 단계(d)를 포함하여 구성되는 것을 특징으로 하는 고전압 펄스를 이용한 슬러지 처리 방법.And a step (d) of storing the high-voltage pulsed sludge of the step (c) in a treatment sludge storage tank. 제1항에 있어서,The method of claim 1, 상기 단계(d) 후 고전압 펄스 처리된 슬러지를 혐기성 소화조로 투입시켜 혐기성 소화공정을 거치는 것을 특징으로 하는 고전압 펄스를 이용한 슬러지 처리 방법.Sludge treatment method using a high-voltage pulse after the step (d) is subjected to the anaerobic digestion process by introducing a high-voltage pulsed sludge into the anaerobic digester. 제1항에 있어서,The method of claim 1, 상기 단계(b)의 원심농축 후 상기 단계(c)의 고전압 펄스 처리 전에, 농축슬러지를 혐기성 소화조로 투입시켜 혐기성 소화공정을 거치는 단계를 더 포함하는 것을 특징으로 하는 고전압 펄스를 이용한 슬러지 처리 방법.After the centrifugal concentration of step (b) and before the high voltage pulse treatment of step (c), the sludge treatment method using a high voltage pulse, characterized in that further comprising the step of undergoing the anaerobic digestion process by introducing the concentrated sludge into the anaerobic digester. 제1항 또는 제3항에 있어서,The method according to claim 1 or 3, 상기 단계(b)의 원심농축 후 상기 단계(c)의 고전압 펄스 처리 전에, 농축 슬러지를 혐기성 소화조로 투입시켜 혐기성 소화공정을 거친 후, 상기 단계(c)의 고전압 펄스 처리를 하고, 고전압 펄스 처리된 슬러지를 혐기성 소화조로 재투입시키는 것을 특징으로 하는 고전압 펄스를 이용한 슬러지 처리 방법.After the centrifugal concentration in step (b) and before the high voltage pulse treatment in step (c), the concentrated sludge is introduced into an anaerobic digester to undergo an anaerobic digestion process, followed by the high voltage pulse treatment in step (c), and the high voltage pulse treatment. A sludge treatment method using a high voltage pulse, characterized by re-injecting the sludge into an anaerobic digester. 슬러지 저류조; 원심농축기; 고전압 펄스 발생 장치; 처리슬러지 저류조; 및 슬러지를 이송시키는 수단을 포함하여 구성되는 슬러지 처리 장치로서,Sludge storage tank; Centrifugal concentrator; High voltage pulse generator; Treated sludge storage tank; And a sludge processing apparatus comprising means for conveying sludge, 상기 고전압 펄스 발생 장치는 고전압 발생 장치 및 수중방전 장치로 구성되는 것을 특징으로 하는 고전압 펄스를 이용한 슬러지 처리 장치.The high voltage pulse generator is a sludge processing apparatus using a high voltage pulse, characterized in that consisting of a high voltage generator and an underwater discharge device. 제5항에 있어서,The method of claim 5, 상기 슬러지 처리 장치는 혐기성 소화조를 더 포함하는 것을 특징으로 하는 고전압 펄스를 이용한 슬러지 처리 장치.The sludge treatment apparatus further comprises an anaerobic digester, the sludge treatment apparatus using a high voltage pulse.
KR10-2002-0078829A 2002-12-11 2002-12-11 Method and device for sludge treatment using high voltage pulse KR100492297B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2002-0078829A KR100492297B1 (en) 2002-12-11 2002-12-11 Method and device for sludge treatment using high voltage pulse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2002-0078829A KR100492297B1 (en) 2002-12-11 2002-12-11 Method and device for sludge treatment using high voltage pulse

Publications (2)

Publication Number Publication Date
KR20040051009A true KR20040051009A (en) 2004-06-18
KR100492297B1 KR100492297B1 (en) 2005-06-02

Family

ID=37345016

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2002-0078829A KR100492297B1 (en) 2002-12-11 2002-12-11 Method and device for sludge treatment using high voltage pulse

Country Status (1)

Country Link
KR (1) KR100492297B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100599554B1 (en) 2006-03-06 2006-07-13 (주) 테크윈 Organic waste sludge volume reduction method using by combined thermophilic aerobic and mesophilic anaerobic digestion and electro-destruction system and apparatus thereof
CN108298778A (en) * 2017-12-27 2018-07-20 武汉都市环保工程技术股份有限公司 Sludge cell wall breakage system and method based on high voltage pulse shaped wire

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100701613B1 (en) * 2004-11-10 2007-03-30 한국건설기술연구원 Sludge liquidation apparatus for enchancing digestion efficiency and a sewage treatmemt system having the apparatus
KR101386417B1 (en) * 2011-12-28 2014-04-21 재단법인 포항산업과학연구원 Soluilization method of sludge
KR101682677B1 (en) 2016-06-22 2016-12-05 유준혁 Device and method for Liquid organic and sludge decrement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01210100A (en) * 1988-02-08 1989-08-23 Pub Works Res Inst Ministry Of Constr Anaerobic digestion of sludge
US6395176B1 (en) * 1995-11-02 2002-05-28 D-H2O L.L.C. Method for treating waste-activated sludge using electroporation
JP2000237795A (en) * 1999-02-25 2000-09-05 Purio:Kk Method for reducing volume of excess sludge by means of extra short period high voltage differential transformation, and treatment system using the method
KR100463726B1 (en) * 2002-01-21 2004-12-29 엄환섭 Underwater Discharge Reactor for Large Scale Treatment by High Voltage Pulse Power

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100599554B1 (en) 2006-03-06 2006-07-13 (주) 테크윈 Organic waste sludge volume reduction method using by combined thermophilic aerobic and mesophilic anaerobic digestion and electro-destruction system and apparatus thereof
CN108298778A (en) * 2017-12-27 2018-07-20 武汉都市环保工程技术股份有限公司 Sludge cell wall breakage system and method based on high voltage pulse shaped wire
CN108298778B (en) * 2017-12-27 2023-09-29 中冶南方都市环保工程技术股份有限公司 Sludge cell wall breaking system and method based on high-voltage pulse forming line

Also Published As

Publication number Publication date
KR100492297B1 (en) 2005-06-02

Similar Documents

Publication Publication Date Title
Anjum et al. Wastewater sludge stabilization using pre-treatment methods
Neumann et al. Developments in pre-treatment methods to improve anaerobic digestion of sewage sludge
Packyam et al. Effect of sonically induced deflocculation on the efficiency of ozone mediated partial sludge disintegration for improved production of biogas
Sato Environmental and biotechnological applications of high-voltage pulsed discharges in water
ES2359222T3 (en) PROCESS OF TREATMENT OF BIOLOGICAL WASTE.
US6709594B2 (en) Method for treating waste-activated sludge using electroporation
JP2004502541A5 (en)
JP2007021431A (en) Sludge treatment method
KR100492297B1 (en) Method and device for sludge treatment using high voltage pulse
KR101607823B1 (en) Recycling wastewater and sludge treatment systems
Van de Moortel et al. Comparing glow discharge plasma and ultrasound treatment for improving aerobic respiration of activated sludge
Adibzadeh et al. Enhancement of lipase activity for the oily wastewater treatment by an electrostimulation process
JP4685385B2 (en) Power generation method using surplus sludge
CN1332898C (en) Sludge stabilizing electrochemical treating process
Neis et al. Ultrasonic disintegration of sewage sludge for enhanced anaerobic biodegradation
JPH11253999A (en) Aerobic treatment of organic waste solution and apparatus therefor
JPH11147801A (en) Bactericide for active sludge, sterilization of active sludge by using the same and treatment of organic waste water
JP2006212581A (en) Method for treating organic waste material
JP2018130656A (en) Waste treatment method and waste treatment system
Zawieja et al. Effect of hybrid method of excess sludge disintegration on the increase of their biodegradability
KR20020075635A (en) Process and apparatus for treating sewage or waste water without emitting excess sludge
JPH01210100A (en) Anaerobic digestion of sludge
KR102010124B1 (en) Pretreatment methods of sludge solubilization for anaerobic digestion
JP2003010880A (en) Reduction of generation amount of sludge and commercialization method of the same
Show et al. Ultrasound pretreatment of sludge for anaerobic digestion

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130430

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20140514

Year of fee payment: 10

FPAY Annual fee payment

Payment date: 20150508

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20160616

Year of fee payment: 12