摘要:
The invention relates to an installation for the nitrification of waste water, said installation comprising an aeration tank (5) and a precipitation tank (6) adjacent thereto. The aim of the invention is to optimise the nitrification process, i.e. to obtain a sufficient oxygen concentration and a long residence time of the activated sludge in the aeration tank (5). To this end, a gas supply device is created from an aeration panel (9) arranged above half of the bottom of the aeration tank (5), whereby a flow roll (18) is induced in the aeration tank (5). The transition to the precipitation tank (6) is carried out by means of an outlet (21) comprising an inlet (20) arranged on the bottom of the aeration tank (5).
摘要:
Supporting brackets (9) formed by integrating fixed plates (8) extending generally through the overall length of a tube body (2) of a single tube drift generator (1) with support leg members (7) extending in the axial direction of the single tube drift generator (1), comprising a pair of right and left side frames (9a) and (9b) obtained by integrally forming the fixed plates (8) with the support leg members (7) and the cushioning material (9c) provided between the pair of right and left side frames (9a) and (9b), wherein the plurality of support brackets (9) are disposed on the side surface of the tube body (2) of the drift generator (1), and the tube body (2) of the drift generator (1) is connected, through generally the overall length thereof, 1 to the fixed plates (8) of the support brackets (9).
摘要:
The present invention relates to a device having a nozzle for filtration and/or emulsification of a fluid, in particular a micro-machined reinforced nozzle plate (2,3), that may be used as a micro filtration filter or may produce small liquid droplets into a liquid (emulsion) with a narrow droplet size distribution or to make small air bubbles into a liquid (foam) and to methods of using the same.
摘要:
Die Erfindung geht aus von einer Vorrichtung zum feinblasigen Belüften von Wasser mit zumindest einem strangförmigen Belüftungselement mit einer oberhalb eines Luftzuführungskanals angeordneten geschlitzten Wandung, deren Schlitze sich elastisch weiten können,wobei das Belüftungselement durch Bodenhalterungen gegen Hubbewegungen gesichert ist. Um eine Montage und Demontage der Belüftungselemente bei nicht abgesenktem Wasserspiegel vollziehen zu können, ist erfindungsgemäss das Belüftungselement längsverschiebbar in seinen Halterungen gelagert in der Weise, dass es durch Zugeinwirkungen an einem Ende aus seinen Halterungen entfernbar ist.
摘要:
An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate of air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.
摘要:
The invention relates to aeration means for a tank filled with liquid. Said means has an air supply line (5) which runs into an air diffuser (2) to which distribution lines (4) for supplying of air to the tank are connected, gaps being arranged vertically between said distribution lines (4), the opposing ends thereof being fastened to a rear cross beam (3). The air diffuser (2) and the rear cross beam (3) are connected to each other by a connection beam (1) which forms a hollow tube arranged between the distribution lines (4). The connection beam (1) is arranged symmetrically in relation to the distribution lines, and its interior is separated from the inner chambers of the diffuser (2) and the rear cross beam (3). The inner chamber of the air diffuser (2) is connected to the inner chamber of the rear cross beam (3) by the distribution lines (4). The frame of the means is provided with the upper section (12') of at least one stabiliser (12), the lower section thereof being fastened to the tank floor.
摘要:
A fluid supply device for the controlled supply of fluid comprises a plurality of diffusers (14) arranged to lie in series (11a, b), flexible connection members (30) for flexibly interconnecting successive diffusers and a fluid supply means (32) for the supply of fluid from a source to said diffusers, each diffuser having at least an inlet portion for the supply of fluid thereto and an outlet matrix having a plurality of passages through which fluid may flow, said flexible connection members providing at least in part a structural link between successive diffusers of the series whereby when one diffuser is subject to a lifting force that force is transmitted by a flexible connection member to a successive diffuser.