I operate a water treatment plant for drinking water. We use Birm® as a medium for the reduction of dissolved iron and manganese compounds from well water, followed by a sand and finally a carbon filter.
Our problem it that we have lots of algae in the product tank.
How do I stop the algae from forming? Which substances and treatment methods do you use and what are your experiences?
most of the responses to add chemicals or UV are missing the point. I do not think that you are looking for more expenses and complications. A passive low cost system would be best. So, cover the tanks to prevent solar exposure. If you can't do that you can add floating plastic balls that cover the surface and block the sun. About 10 years ago Los Angeles had a problem in a chlorinated finished water reservoir because of solar catalysis for conversion of bromide to bromate. They covered the reservoir with floating black balls. Problem solved.
Size of your tank? and the species of the algae? First cover your tank to prevent sunlight and algae from air. How frequent does the algae occur in your tank (how often do you clean the tank to remove the algae?)
You may try disinfection process before removal of Fe and Mn. Also aeration may help in removing N and P from water. I shortage of nutrient algae will not grow. Your Birm® must be sterilized before use.
I share the same view with Joseph. Algae grow and multiply in the presence of sunlight. Keep your water tank close to prevent penetration of sunlight. Once sunlight do not reach the content of the tank, algae growth will be eliminate. However , you can try the use of GoodlifeUV technology to ensure supply of potable water for consumption .
If you have an open tank or storage that you can't cover, you can use floating plastic balls that are commercially available for covering reservoirs. They block the sunlight. All of the suggested treatment approaches in this chain miss the point. The idea is to passively prevent algae growth. Also preventing growth is much less expensive than treatment and has fewer complications. Los Angeles did this many years ago when they has a solar catelyzed bromate formation problem in their chlorinated open finished water reservoir. It woks great!
Our ultrasonic algae and biofilm control devices were placed in Orange, Florida's potable water distribution tanks to prevent biofilm growth that was lowering the free Chlorine residual. With ultrasound present the cleaning cycle went from every 3 to 4 months to over 3 years. www.algaecontrol.us
I would like to recommend you to add oxygene to the water. This can be reached at best with the Oxybull. For more information and further details please contact me at ronald@luiten-greenhouses.com
If you produce algae means that the waters contain nutrients that feed them, therefore, during the distribution of water must continue oxidation and this can be done by combining the production of pressurized water power water distribution, which continually recycles water dissolvendovi oxygen due to the pressure of the autoclave http://www.spawhe.eu/hydroelectric-energy-files/. If the waters also contain heavy metals such as manganese, iron, arsenic, you can be combined with the previous system An ion exchange system with chelating resins. Even this system is realized with the continuous recycling of the water that passes through the ion exchanger and in the regeneration of the resins that float in the holed spheres in the water to be purified and in the regenerating liquid. Although these systems are able to produce hydroelectric energy at low cost http://www.spawhe.eu/sustainable-desalination/. Therefore these systems will pay for themselves the cost of purifying treatments by means of the electricity produced. But these plants are not being. They are new patents of undersigned in search of public and private partners around the world-
I can recommend removal of Algae by using Nano Particles and a Magnetic gate Way, where Water is Passed and Nano particles are caught. This will be an on going process Chemical Free. It can also be applied on lakes to remove Algae. This Nano particles are available in United States. If interested, as initial step please provide Pictures of your set up and Volume of Water which has to be treated, as well as complete information of your Water Company , location, if it is private or public Company in order to start our discussions with you.
We also have a unique solution for the treatment of Municipal gray water
I dont know why people are still promoting bleach, chlorine etc for drinking water disinfection. Your issue is Algae, here is my approach.
Immedeately after your carbon fiteration install GoodlifeUV system. GoodlifeUV will ensure that there are no live bacteria/algae passing out of the UV outlet. GoodlifeUV is very different from the conventional UV systems and the there is "NO coating of quartz sleeves" that happens in GoodlifeUV systems.
As many have rightly suggested your storage tank water should be deprived of sunlight. Cover it up. In case there is long storage time in the treated water tank then have another GoodlifeUV installed at your tank outlet for added safety.
No need to add any chemicals like Chlorine, no need for monitoring chemical dosage, etc.
Biofuel development from algae Reasons to focus on algae ● Algae oil production capacity is several tens to several hundreds of terrestrial oil and fat plants ● Small area required for production ● Does not compete with food ● No need for cultivated land for production (Utilizing leave sites) This is the biggest reason why people around the world are paying attention to algae
Types of combustion produced by algae
The fuel of algae is divided into three plus one.
1. Seaweed mainly Because it makes various carbohydrates, we do not produce much oil. Therefore, take alcohol from carbohydrates. It is one flow of bio-alcohol.
2. Most microalgae make The same ingredients as those of vegetable oil such as so-called vegetable oil rapeseed oil Oil · triglyceride → biodiesel (FAME) via bio (HiBD) This oil can not be used directly for oil fuel. When using it as a fuel, do the thing called methyl ester dan, the point is to use the glyceride removed. This is what we call biodiesel fuel. Although it comes with the name of diesel, it is completely different in nature from what is called diesel via, and it is one with a lot of oxygen intruded. Since there are various restrictions when using biodiesel containing a lot of oxygen, "Because it is a bit problematic as it is" Recently, the concentration of oxygen is converted by hydrogen conversion and brought to so-called hydrocarbon, There is a trend of using it as a bio diesel oil.
3. A small group of algae It is typified by Botryococcus Orlando Chicken Limm, This oil is a petroleum type oil. That is, it becomes hydrocarbon. Hydrocarbon (bio b heavy oil) → Currently operated fuel This can be converted to light oil, jet fuel, gasoline even with refining technology possessed by a modern oil company. We will show each of the advantages and disadvantages as well.This has this kind of thing.
Botryococcus Botryococcus ● Algae inhabiting freshwater ● Form a colony of 30 to 30 to 500 pm from green to red ● Fix carbon dioxide and produce hydrocarbons ● Hydrocarbon is a complete oil substitute resource ● Hydrocarbons accumulate in cells and inside colonies (20.75% of dry weight) Each cell is elliptical one The horizontal axis is 20 microns and the vertical is 10 microns, Each one is independent, but it can not become disjoint even after division, Since the surroundings are viscous, they stick together and make colonies. So, the hydrocarbons that were made are synthesized first in the cell, but that comes out. Outside hydrocarbons do not spread in the liquid, but are basically trunked inside this colony.Colonies - ranked among so-called cells. Therefore, if you crush this colony, this will come out of the corner, the colocoro. This is hydrocarbon oil.This is the time of crushing. It is the hydrocarbon that comes out when you crush. Therefore, since it is outside the cell and just fills the cell, Extracting hydrocarbon oil is an organism that has such a characteristic that it can be extracted easily without breaking the cell.
Aurantiochiytrium In addition to Botryococcus there is another heterotrophic algae oranthium oxide which makes hydrocarbons. This will not produce photosynthesis. When you give organic matter, it will increase tremendously using its organic matter. And it has the property of producing hydrocarbons. Compared with Botryococcus, the efficiency of this organism to produce hydrocarbons, It is a creature that will make it at a rate 10 times higher than that. The shape of a living thing is just a spherical shape. When I look at the microscope with a special stain that dyes only oil in this spherical shape, Dyeing oil turns yellow. It is pale yellow. You can see that it is making oil very well. B heavy oil is an oil obtained by mixing c heavy oil and diesel oil in half, so it has intermediate characteristics.In terms of density, it is just density like light oil. Another important kinematic viscosity, sticky, then.Whether it is smooth. When I look at it, it looks very heavy from heavy oil, B It can be said that it has a feeling of smoothness quite close to heavy oil or light oil. I tried spraying Botrio oil and light oil. The timing was delayed for a while but the oil of Botryococcus definitely exploded. Timing shifted because light oil is heavier, explosion takes place in a short time like diesel if slight pressure is applied. It was introduced in the program of the New Year this year (2012), because the car would move as it actually exploded, but by mixing 70% with light oil, it was said that the Mazda CX - 5 was successfully runIt is a thing.
Four models of commercialization of algae biomass 1.Fuel use model Used as fuel for passenger cars, agricultural machinery, and ships 2.Energy source model fuel for power generation, use as a heat source 3.Health industry model Cosmetics, use as health food 4.Chemical industry model Use as a chemical product such as plastics Taking full advantage of the potential of local resources and algae biomass, New industries that are environmentally friendly, contribute to energy and health
1. Try microfiltering and hyperthermia, We will normalize the subsequent minerals with alumite, etc., Afterwards, adjustment of hardness is necessary.
2. You can use either freshwater or seawater, modifier / bacteria compatible, It suppresses tea moss and green moss in the aquarium for about 1 month.Since natural ingredients are the main ingredient and various vitamins, minerals and polyphenols are blended, the vitality of the living body will be enhanced and it will be less susceptible to disease.It is not a chemical such as a herbicide, so you can use it for large fish such as Arowana.You can use either freshwater or seawater.
【amount to use】 10 liters of alga guard is specified for 10 liters of breeding water.
When Diatom Algae grow, the water will be clean and well oxygenated and bacteria and other algae growth will decline.
Growing one type of algae to solve problems caused by other types of algae may sound odd, but Diatoms are good algae and other algae such as Cyanobacteria / Blue Green Algae and Green Algae are bad algae. So when Diatoms grow water is clean.
You can use either freshwater or sea water, Adjusting agent / Bacteria corresponding, It suppresses tea moss and green moss in the aquarium for about 1 month.Since natural ingredients are the main ingredient and various vitamins, minerals and polyphenols are blended, the vitality of the living body will be enhanced and it will be less susceptible to disease.It is not a chemical such as a herbicide, so you can use it for large fish such as Arowana.You can use either freshwater or seawater.
【amount to use】 10 liters of alga guard is specified for 10 liters of breeding water.
Hi Ebrahim, Consider the alternative - cultivate the algae ("glass half full").... on purpose, to pull off the nutrient load i.e. N, P, harvest it and put back into your AD for more gas production or convert to energy, HTL being one of the most promising technologies where you only need to dewater to approx 20% solids.
