Applications: Municipal Sewerage – Waste Water Clean-up

MBR Wastewater Treatment’s

With over 549 operational municipal sewage plants utilizing the Kubota flat sheet submerged membrane process around the world, MBR Wastewater Treatment Ltd. is expertly placed to assist with your requirements.waste water surface aeration

Case Studies
Moneyreagh, Northern Ireland
Narraghmore, Ireland
Picnic Bay, Australia
Porlock, England
Skipsea, England
Swanage, England

The development of MBR Wastewater Treatment’s submerged membrane bioreactor technology was the result of a Japanese Government initiative to produce compact high quality effluent treatment plants. Since producing the first pilot plant using this technology in 1989, and the first commercial plant in 1991, over 900 plants have been installed worldwide. These treat a wide range of effluents, the principal application being sewage and sludge liquors, but also including industrial wastewater, manufacturing and processing wastewater, and graywater recycling for a wide range of re-use purposes. In the UK, a pilot trial has been run at Kingston Seymour WwTW since 1995. A full-scale plant has been operating successfully at Porlock WwTW since February 1998, treating a population waste of approximately 3,800 persons. Swanage WwTW has been operating since September 2000 treating a population waste of approximately 28,000 persons.

The process employs simple flat sheet membrane panels housed in GRP units and aerated by a coarse bubble system below each unit. A series of these membranes are submerged within an activated sludge treatment tank. The aeration necessary for treatment of the liquors also generates an upward cross-flow over the membranes; this is essential to keep fouling of the filtration surface to a minimum. An advantage of this design is that the membrane panels are securely retained and do not touch or abrade each other, while the units also act as a flume to ensure effective tank mixing and even distribution of the biomass.

The membrane panels are manufactured with a pore size in the range of 0.1 to 0.4 microns which in operation becomes covered by a dynamic layer of protein and cellular material. This further enhances the effectiveness of this filtration performance by providing an effective pore size of less than 0.01 microns, which is in the ultra-filtration range.

Our membrane bioreactor treatment produces a high quality disinfected effluent. The raw sewage generally only requires screening and de-gritting prior to entering the membrane bioreactor tank. The process requires no primary or secondary settlement stages and no additional tertiary treatment or UV stages to achieve this very high disinfection quality typically better than 5:5:5 BOD:Suspended Solids:Ammonia.

MBR Wastewater Treatment Ltd.’s Membrane Bioreactor Technology has a number of inherent advantages. The system does not require flocs to be formed to remove the solids by settlement and therefore the biomass can operate at very high levels of MLSS, generally in the order of 12,000-18,000 mg/l, and as high as 22,000 mg/l. This high concentration enables a low tank volume and a long sludge age to be utilized, which substantially reduces sludge production.

The well aerated high density biomass also absorbs odors and maintains quality even after receiving short term loading peaks.waste water treatment

The hydraulic flow determines the required number of membrane units. Each membrane unit may contain up to 200 flat sheet membrane panels housed within a rectangular box, together with an integral aeration system in the bottom section of the unit. Treated effluent is removed from the membrane units using gravity head (typically 1 – 1.2 m), or a pumped suction operation can be utilized.

Operation and Maintenance
Operating experience of the pilot and main treatment plants has consistently shown an effluent of high quality, that has little dependence on variations in feed strength and is fully disinfected with bacteria and viruses reduced to below the EU limits for swimming water or recreational water standards.

By minimizing the effect of fouling through controlled cross flow velocities over the membrane surface cleaning is required typically only twice per year using a backwash of high dilution dilute sodium hypochlorite solution into each membrane unit.

The process is designed to run without supervision and by using high quality plastics and stainless steel, the membrane panels and units have long life expectancies in the most part beyond 10 years.

Characteristics of the available wastewater treatment technologies
Activated sludge

Fast installation

Small footprint

Ease of operation

Low maintenance

No odor/vector attraction

High biomass concentration

High loading rates

Tolerates shock loading

High & consistent effluent quality

Disinfection without UV/chemicals

Effluent suitable for agricultural or graywater reuse

Effluent suitable for discharge to sensitive waters

Removal of Common Household Pests

pest control

Removal of Common Household Pests By A Professional Pest Control In South Texas.

Pest Control In South Texas. Have you ever found strange bites on your body or felt tiny legs crawling on your arm? Pest control In South Texas is a major annoyance for people all over the US. You can keep your house and car spotlessly clean, but the most common household pests just keep coming back. Some of the most common household pests are flies, crickets, mosquitoes, bees, hornets, and more. They appear unexpectedly in your kitchen when you’re cooking dinner or crawling across the sandbox your kids are playing in. What can be done about these common household pests and how can you approach proper pest control in South Texas?

Ants Pest Control In South Texas
The first consideration when dealing with pest control in South Texas for ants is to figure out why they are entering your property. Making sure that you clean up all food and food debris quickly after meals is a good step to get rid of ants. If you have fire ants, they may need to be removed by a professional. Fire ants build mounds up to 2 ft.ant control They also have painful bites.

antBees and Wasps Pest Control In South Texas
Bees and wasps are dangerous to have around your home. Their stings are painful and can be deadly if you are allergic. You will need to find the nest where the wasps live. Spraying insecticide in the nest is an easy way to kill them, but you must be careful to avoid being stung. If your issue is with bees we can arrange for a bee keeper to come remove, and relocate the hive. Bees are an important of our environment and we do not kill bees at . In order to avoid harm or health risks you may want to contact a local professional pest control in South Texas company to take care of the problem.

Pest Service Starting At $89.99 Get Pest Control In South Texas Today Call: Pest Control In South Texas Truck
Cockroaches Pest Control In South Texas
Sticky traps are the best way to get rid of cockroaches yourself, but a professional pest control in South Texas company may be needed if you have a large infestation. Placing a large amount of sticky traps in your home with bait such as white bread will tell you where the cockroaches are coming from. Cockroaches tend to move around the outside of a room near the walls.

Beetles Pest Control In South Texas
Traps are available to control the beetle population of your home and yard, but they are difficult to use because beetles are often found in large populations. Spraying plants, especially houseplants and plants close to your home, with insecticide soap is a good way to control beetle population. Most pest control in South Texas insecticide soaps will not harm the plants they are sprayed on.

Centipedes and House Centipedes Pest Control In South Texas
Centipedes usually travel in small numbers, so killing any centipede you see should quickly get rid of this pest. Also centipedes need a moist environment, so keeping your home dry is another way to prevent centipede infestation and ensure pest control South Texas.

Firebrats and Silverfish Pest Control In South Texas
Firebrats and silverfish cannot fly, so blocking their entrance to your home from the ground will get rid of them. Using foam spray or caulking to seal any cracks will prevent their entrance and guarantee pest control South Texas of these pests. Firebrats eat pretty much anything, so they are difficult to starve.Pest control Keeping your home dry will also deter these pests, because they love moisture. Silverfish are often killed with poison, but you shouldn’t handle poison yourself, instead you should call professional pest control in South Texas.

Fleas Pest Control In South Texas
Making sure your carpets are kept very clean is a good way to get rid of fleas. Combing your animals with a special flea comb will help you find and destroy any left over fleas that are attached to them. Cleaning the bedding your pet uses is essential for flea management and pest control in South Texas.

Mosquitoes Pest Control In South Texas
Landscaping and getting rid of any standing water on your property is the best way to rid your home and family of mosquitoes and. Bug lights and mosquito repellent also help in maintaining pest control in South Texas.

Crickets Pest Control In South Texas
Using yellow lights designed for pest control South Texas on your porch and outside fixtures are excellent for getting rid of crickets because they are very attracted to light. Traps are also very effective in cricket control.

Scorpions Pest Control In South Texas
Scorpions are found mostly in Arizona, Texas and California. You can get rid of them by eliminating the places scorpions can hide, such as bark pieces and brush piles. Sealing your home of cracks is also important in the prevention of a scorpion infestation and pest control in South Texas.

Flies Pest Control In South Texas
Flies are a very common pest and are difficult to get rid of. Keeping your kitchen clean and taking the garbage out a least a couple times per week will minimize fly infestation of your home. Making sure to use screens on all open entrances to your home also helps ensure pest control in South Texas.

Fruit Flies Pest Control In South Texas
Fruit flies are almost always found in the kitchen. They love moist, organic materials, especially fruits and vegetables and dirty sponges and wash cloths. Keeping your kitchen clean and not leaving out fresh fruit is the best way to get rid of these pests and increase pest control in South Texas.

Hornets Pest Control In South Texas
Hornets love protein, so it’s essential in pest control in South Texas to keep items such as pet food in closed containers to avoid infestation. Water traps are often used to eliminate hornets, and vinegar is a good bait for these traps.

Spider Pest Control In South Texas
To get rid of spiders, first find their homes. The areas that spiders live must be cleaned and freed from clutter so that there are less spaces for spiders to hide. Insecticide spray by a professional pest control in South Texas company may be used to kill spiders.spider control

Yellow Jackets Pest Control In South Texas
Yellow Jackets should be killed at night, because they are in their nests and can be completely eliminated. The nest should be located and sprayed with pyrethrum aerosols by a professional pest control South Texas company. Check the next day to make sure all they were killed.

Kudzu Bugs and Box Elder Bugs Pest Control In South Texas
Kudzu Bugs and Box Elder Bugs can be difficult to remove once they have entered your home.pest control The vacuum cleaner is an effective way to remove these bugs. They are attracted to light and are often found in light fixtures or near windows. remove them once they are indoors is with a vacuum cleaner. Since they are attracted to bright lights they will usually end up around light fixtures and windows. Fly traps can aid in their removal and pest control in South Texas, especially if placed around windows.