Product Specification

Product Description:

The DEM-MBR flat plate membrane element from dubhe is characterized by a simple flat plate structure, which, together with the improved membrane surface characteristics, enables the rising fluid generated by aeration to effectively scour the membrane surface, making it difficult for particulate matter to be deposited on the membrane surface, and ensuring stable filtration performance.

APPLICATION:

Large-scale wastewater projects
Organic wastewater treatment;
Old sewage plant process improvement;
Surface water purification treatment;
Reverse osmosis system influent pre-treatment;
Restaurant or landscape wastewater treatment and reuse;
Car wash plant ship sewage recycling and reuse;
Various types of beverage factories, distilleries, food factories, livestock factories, slaughterhouses, dyeing and finishing plants, leather factories, pulp mills;
Wastewater treatment for pharmaceutical factories and high-concentration organic treatment plants;
Large municipal wastewater treatment and reuse, community living water reuse, department stores, office building water reuse, sewage water reuse.

Technical Parameters:

Monolithic Membrane Element Dimensions:

DEM140-200W series membrane modules are large membrane modules for large wastewater projects.

How to install DEM140-series flat film:

1,Setup preparation
(1) Determine the handling plan for putting the membrane into the bioreactor to be installed, such as the handling route.
(2) Prepare the equipment to unload the membrane from the truck (forklift, crane, trailer, etc.).
(3) Construction in the reactor tank should be completed before installation, and please check the cleanup work. Please be sure to remove any large pieces of trash (concrete blocks, cutting chips, bits and pieces of material) that may be left in the tank.

2. Disassembly of Membrane Element
When unloading the membrane element from a truck, use equipment such as a forklift, crane, or trailer, and use the following methods for lifting the packaging style and sample.
(1) When shipping, the membrane element part and the aeration part are bundled separately.
(2) When lifting the TORAY flatbed ultrafiltration membrane element, attach the hook completely to the lifting ring and lift horizontally. Please be careful not to damage the flow guide tube and aeration tube of the membrane element, and ensure safety during operation.

DEM-MBR membrane wastewater treatment technology is a new wastewater treatment technology that organically combines membrane separation technology and biochemical treatment technology, using Toray membrane separation equipment to retain activated sludge and macromolecular organic matter in the biochemical reactor, eliminating the secondary sedimentation tank, the concentration of activated sludge is greatly increased, the hydraulic retention time (HRT) and the sludge retention time (SRT) can be controlled separately, and the difficult to degrade substances in the The difficult to degrade substances are continuously reacted and degraded in the reactor.

Operation and Maintenance

(1) Do not drink the permeate water.
(2) When discharging or recycling the treated water, analyze the treated water according to the purpose of use and make sure that it meets the requirements for use.
(3) Hydrogen fluoride (HF) gas occurs when the membrane element is burned after use. When the membrane element is discarded, it must be disposed of by a professionally qualified disposal company.
(4) Open the air vent valve before adding fresh water to the reaction tank to exhaust the air inside the membrane element. Close the air vent valve after feeding water.
(5) It is recommended that surface water not be used in place of fresh water for operation, as surface water may cause membrane clogging if it contains large amounts of iron, manganese, calcium, and silica.
(6) Do not perform excessive clear water testing, as clear water operation may result in membrane clogging.
(7) Keep the membrane moist after water operation. Drying of the membrane may result in a decrease in water permeability.
(8) Do not filter without proper aeration, as this may result in clogging of the membrane surface.
(9) Chemicals, drugs, oils, or other substances that adversely affect activated sludge must not be added to the reaction tank.
(10) The ABS support plate will be chemically cracked when it comes in contact with some organic solvents, such as alcohol, oil or synthetic detergents. Therefore, contact of the ABS support plate with these substances should be avoided.
(11) Even within the operating conditions of the membrane module, try to avoid sudden changes in parameters such as temperature, pH, and differential membrane pressure.
(12)Regularly inspect and replace parts that need to be renewed.
(13) When removing the membrane module for maintenance, it is necessary to keep the membrane in a moist state at all times. Drying of the membrane may result in a decrease in water permeability.
(14) When stopping the filtration operation, stop aeration flushing of the membrane. However, it is not necessary to stop aeration during the normal intermittent operation phase of membrane filtration.