摘要:
A water filtration system includes a raw water reservoir that holds raw water. The system also includes a gravity filtration assembly to remove particles from the water as it passes through from the raw water reservoir. The filter of the assembly includes immobilized filter media within an enclosure.
摘要:
A system for recovering fat, oil and grease and removing biochemical oxygen demand and total suspended solids from brown grease or trap grease. In some cases, the system includes an integrated inlet coarse screen, primary circular zoned dissolved air and ozone flotation unit, bio-dissolved air and flotation unit, and three-phase centrifuge.
摘要:
A source liquid including a solvent with a dissolved impurity flows into a reservoir. The source liquid or a concentration of the source liquid is pumped from the reservoir through a pressure exchanger into an upstream side of a liquid-separation module. The liquid-separation module includes a membrane that passes at least partially purified solvent as filtrate while diverting the impurity in a feed retentate. The substantially pure water is extracted from the permeate side of the liquid-separation module, while the feed retentate is passed from the upstream side of the liquid-separation module through the pressure exchanger, where pressure from the feed retentate is transferred to the feed from the reservoir. The feed retentate is then passed from the pressure exchanger to the reservoir and recirculated as a component of the feed via the above steps.
摘要:
A membrane-based separation device comprises multiple interconnected flat sheets of membrane bonded to a flexible film. The bonded films are bonded in a way to create an accordion or zig-zag shape. In certain embodiments, the first or upstream layer is affixed to a suitable housing, and the last or most downstream layer is also affixed to the suitable housing. The housing may contain an inlet port for the introduction of sample, and an outlet port for the removal of filtered sample. Flow through the segments is in parallel. Since the membranes are not folded or pleated, higher performance membranes (e.g., polysulfone based membranes with some degree of asymmetry) than those usable in pleated or folded systems can be used.
摘要:
The present invention provides a method of purifying a contaminated liquid flow (A) comprising the steps of: introducing a first type of gas bubbles (8) in the contaminated liquid flow (A), the first type of gas bubbles obtained by at least partly saturating a liquid with a first gas (Β'), at a first pressure, followed by a lowering of the first pressure to a second pressure; introducing a second type of gas bubbles (9) to the contaminated liquid flow (A) downstream of the introduction of the first type of gas bubbles, the second type of gas bubbles formed by sparging, entrainment or attrition of a second gas (B"); extracting a reject stream (C) comprising aggregates formed by the interaction of contaminants from the contaminated liquid flow (A) with both the first and the second type of gas bubbles; and obtaining a purified liquid flow (D) downstream of the introduction of the second type of gas bubbles; as well as a system and a vessel for use in such a method.
摘要:
An energy-efficient liquid-gap distillation apparatus includes a source of a feed liquid; a distillation module comprising: (a) a feed-liquid chamber in fluid communication with the feed-liquid source to establish a flow of the feed liquid there through, wherein the feed-liquid chamber includes a selectively permeable porous material that allows a component of the feed liquid to pass through the selectively permeable porous material and exit the feed-liquid chamber in vapor form but not in liquid form; (b) a condensing surface maintained at a lower temperature than the feed liquid in the feed-liquid chamber, wherein the condensing surface is sufficiently hydrophobic to produce a contact angle with water of at least 150; and (c) a gap between the selectively permeable porous material and the condensing surface. Vapor passing through the membrane can be condensed as jumping droplets at the condensing surface.
摘要:
Disclosed herein are methods and systems for treating greywater from a microbial food decomposition process. A method includes flowing, into a mixing chamber of a water treatment tank, a first volume of untreated greywater. A second volume of recirculated greywater mixed with ozone gas is flowed into the mixing chamber, and mixes with the first volume of untreated greywater to produce a third volume. The third volume of greywater is flowed into a storage tank. The method further includes diverting a first portion of the third volume out of the water treatment tank, and diverting a second portion of the third volume into a recirculation line that flows the second portion back to the mixing chamber.
摘要:
Disclosed herein are methods and systems for treating greywater from a microbial food decomposition process. A method includes flowing, into a mixing chamber of a water treatment tank, a first volume of untreated greywater. A second volume of recirculated greywater mixed with ozone gas is flowed into the mixing chamber, and mixes with the first volume of untreated greywater to produce a third volume. The third volume of greywater is flowed into a storage tank. The method further includes diverting a first portion of the third volume out of the water treatment tank, and diverting a second portion of the third volume into a recirculation line that flows the second portion back to the mixing chamber.
摘要:
시동 초기에 공기가 유입되기 위한 유입관부에 채워진 물을 별도의 수단을 사용하지 않고 흡입할 수 있도록 동일 동력하에서 공기의 흡입력을 배가시킨 폭기장치가 개시된다. 폭기장치는 모터가 내장된 중공의 케이싱과, 상기 케이싱의 전방측에 설치되고 반경 방향으로 배출공이 형성되며 상기 모터의 구동축이 후방에서 전방으로 관통하여 연장 구비된 혼합부와, 상기 혼합부 내에 회전 가능하게 설치되며 혼합부의 반경 방향으로 유동이 발생하도록 상기 구동축에 체결된 임펠러와, 상기 혼합부의 전방측에 설치되며 다수의 흡입공이 형성된 흡입하우징과, 상기 흡입하우징을 전방에서 후방으로 관통하며 상기 임펠러를 향하여 연장되는 연장관부를 갖는 공기유입부를 포함하며, 상기 임펠러로부터 전방을 향해 연장되어 상기 연장관부의 내부로 삽입되며 상기 임펠러와 함께 회전되어 공기유입부 내부의 유체에 흡입력을 제공하는 보조 흡입부를 구비한다. 따라서, 시동 초기에 공기가 유입되기 위한 유입관부에 채워진 물을 별도의 수단을 사용하지 않고 흡입할 수 있도록 동일 동력하에서 공기의 흡입력을 배가시킴으로써, 깊은 깊이에서도 효율적으로 폭기를 수행할 수 있는 효과가 있다.