anaerobic treatment Applications

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Flaring Solutions for the Biogas Industry - Wastewater Treatment + Anaerobic Digester

by ABUTEC LLC     based in Kennesaw, GEORGIA (US) (USA)

ABUTEC manufactures and services low-emission, low-nitric-oxide enclosed flares for the anaerobic digester and wastewater industries. We offer compact solutions and competitively priced equipment for companies that are upgrading due to new regulations, evaluating a gas-to-energy project or looking for a green technology to work in emergency or shutdown conditions. We specifically size and design our flares for each customer’s unique needs.

Anaerobic Digester for Biogas Plant

by Center Enamel Co,.Ltd     based in Guangzhou, CHINA

Glass fused to steel tank is made by a special process, called vitreous enamel coating ,which is an advanced technology for anti-corrosion purpose of steel plate. Tanks are coated both inside and outside with enamel .Today, glass fused to steel tank is widely used in wastewater treatment projects as aerobic and anaerobic reactors of UASB,EGSB,SBR,BAF,USR,CSTR, and equalization tank, clarifier, and sludge holding tank. It has proven its superior resistance to thermal and chemical when facing water with extremes in pH and temperature.

Energy from the anaerobic wastewater treatment for the Food and Beverage industrial sector

by Hydroitalia - Colsen Srl     based in Medicina, ITALY

Industrial wastewater characterized by an high COD content are an interesting renewable source for the Food and beverage industrial sector which can have them readily available from their industrial processes. The COD contribution in the wastewater can be easily converted in biogas and then in green energy to reuse inside the factory as both electrical energy and thermal energy. This process can be applied with the installation of the UASB technology, implemented by Hydroitalia - Colsen in new and existing plants.

Wastewater treatment solutions for anaerobic sludge digestion sector

by QM Environmental Services Ltd.     based in The Hague, NETHERLANDS

Anaerobic digestion is a series of processes in which microorganisms break down biodegradable material in the absence of oxygen, used for industrial or domestic purposes to manage waste and/or to release energy. It is widely used as part of the process to treat wastewater, like Upflow Anaerobic Sludge Blanket (UASB) reactors. As part of an integrated waste management system, anaerobic digestion reduces the emission of landfill gas into the atmosphere. Anaerobic digestion is widely used as a renewable energy source because the process produces a methane and carbon dioxide rich biogas suitable for energy production, helping to replace fossil fuels. The nutrient-rich digestate which is also produced can be used as fertilizer. The digestion process begins with bacterial hydrolysis of the input materials in order to break down insoluble organic polymers such as carbohydrates and make them available for other bacteria. Acidogenic bacteria then convert the sugars and amino acids into carbon dioxide, hydrogen, ammonia, and organic acids. Acetogenic bacteria then convert these resulting organic acids into acetic acid, along with additional ammonia, hydrogen, and carbon dioxide. Finally, methanogens convert these products to methane and carbon dioxide.

Oxygen Generating Systems for Sewage Treatment

by Oxygen Generating Systems Intl. (OGSI)     based in North Tonawanda, NEW YORK (USA)

Using Oxygen to Solve Waste Water Problems Lack of oxygen can cause inadequate purification or even anaerobic decomposition, as well as offensive odors. Injecting oxygen into sludge beds &/or piping allows you to: * Reduce nitrogen levels * Meet peak O2 demands * Have a back up to your aeration system * Pre-purify waste water * Control odors * Deter corrosion damage * Meet increased requirements regarding waste water purification

Wastewater Treatment for Municipalities

by HydroThane STP BV     based in KC `s Hertogenbosch, NETHERLANDS

A wide variety of sludge, including municipal sewage sludge, are treated in anaerobic digesters.

In these digesters, there is a certain amount of biogas created and this consists of CH4, CO2 and H2S. This biogas is often used for creating green energy. 



WASTE WATER TREATMENT

by DAKSHA GREENTECH INTERNATIONAL     based in BANGALORE, INDIA

WASTE WATER TREATMENT MADE EASY WITH THE INTRODUCTION OF D-ANOOOZ PROCESS. IT WORKS ON VARIABLE INPUT OF EFFLUENT. LOW ENERGY CONSUMPTION, NO SOUND, MINIMUM MAINTENANCE. ENERGY CAN BE TAPPED IN THE FORM OF METHANE GAS FROM ANAEROBIC DIGESTION. TARGET CUSTOMERS ARE SCHOOLS, UNIVERSITIES, HOSTEL, HOTELS, HOSPITALS, RESIDENTIAL LAY OUTS.

Wastewater Treatment for the Pulp & Paper Industry

by HydroThane STP BV     based in KC `s Hertogenbosch, NETHERLANDS

The pulp and paper industry generates large volumes of highly heterogeneous waste waters containing compounds from wood or other raw materials, process chemicals and compounds formed during processing.

The waste water streams from pulp and paper vary greatly in concentration and composition. The waste water from mechanical pulping (TMP) and secondary fiber pulping as well as the condensates from chemical and semi-chemical pulping are typically non-toxic to methanogenic degradation and contain easily degradable organic compounds. Amongst various anaerobic systems, the UASB and ECSB (EGSB) processes are the most applied anaerobic reactor systems in the pulp and paper industry. The Upflow Anaerobic Sludge Blanket (UASB) process and the External Circulation Sludge Bed (ECSB) process from HydroThane are worldwide proven processes for the treatment of this type waste water.

Wastewater Treatment for the Bioenergy Industry

by HydroThane STP BV     based in KC `s Hertogenbosch, NETHERLANDS

The waste (water) streams from the production of (bio) ethanol or ethanol spirits are generally very suitable for anaerobic treatment, due to their organic compounds. 

The effluent streams produced by the different production processes are influences by a great number of parameters such as, process design, milling process, type of raw material, etc. This requires special attention in the design of the treatment plant for this type of industry. 

Typical streams from these industries that can be treated are, whole stillage, thin stillage, spent wash, vinasse and condensate from evaporator. The Upflow Anaerobic Sludge Blanket (UASB) process and the External Circulation Sludge Bed (ECSB) process from HydroThane are worldwide proven processes for the treatment of this type of waste water.

Wastewater Treatment for the Chemical industry

by HydroThane STP BV     based in KC `s Hertogenbosch, NETHERLANDS

In addition to the food industry, biological anaerobic and aerobic technologies can be applied in the chemical and pharmaceutical industry as well.

Typical for the chemical and pharmaceutical waste water is the high organic pollution, which is often limited to only a few components that can be present in high concentration. Every production site has its own unique effluent composition.

This type of effluents require tailor-made solutions. The Upflow Anaerobic Sludge Blanket (UASB) process and the External Circulation Sludge Bed (ECSB) process from HydroThane are worldwide proven processes for the treatment of this type waste water.

Some chemical /pharmaceutical production processes where anaerobic technology has been applied are:
- Purified Terephthalic Acid (PTA)
- Phenol
- DMT
- Penicillin
- Insulin.

Sulfide Oxidation with Hydrogen Peroxide (H2O2)

by USP Technologies     based in Atlanta, GEORGIA (US) (USA)

Sulfide Odor Control Sulfide is found throughout the environment as a result of both natural and industrial processes. Most sulfide found in nature was produced biologically (under anaerobic conditions) and occurs as free hydrogen sulfide (H2S) - characterized by its rotten egg odor. We are most likely to encounter biogenic H2S in sour groundwaters, swamps and marshes, natural gas deposits, and sewage collection/treatment systems. Manmade sources of H2S typically occur as a result of natural materials containing sulfur (e.g., coal, gas and oil) being refined into industrial products. For a variety of reasons - aesthetics (odor control), health (toxicity), ecological (oxygen depletion in receiving waters), and economic (corrosion of equipment and infrastructure) - sulfide laden wastewaters must be handled carefully and remediated before they can be released to the environment. Typical discharge limits for sulfide are < 1 mg/L. Sulfide Treatment Alternatives There are dozens of alternatives for treating sulfide laden waters, ranging from simple air stripping (for the low levels present in groundwaters) to elaborate sulfur recovery plants (used to treat several tons per day at refineries and coal burning power plants). There are processes based on biology (using compost filters, scrubbing media, or inhibition/disinfection), chemistry (oxidation, precipitation, absorption, and combination), and physics (adsorption, volatilization, and incineration). Each process occupies a niche which is often defined by the scale and continuity of treatment, whether the sulfide is in solution or is a gas, the concentration of sulfide involved, and the disposition of the sulfide containing medium. However, for reasons relating to convenience and flexibility, chemical oxidation (using hydrogen peroxide) continues to grow in its scope of application. Treatment with Hydrogen Peroxide While other peroxygens such as permonosulfuric (Caro’s) acid, peracetic acid, and persulfates will oxidize sulfide, their use for this application is overkill. Hydrogen peroxide (H2O2) is considerably simpler and more cost-effective. H2O2 may control sulfides in two ways, depending on the application: Prevention - by providing dissolved oxygen which inhibits the septic conditions which lead to biological sulfide formation; and Destruction - by oxidizing sulfide to elemental sulfur or sulfate ion.

Soil and Groundwater treatment solutions for bioremediation industry

by QM Environmental Services Ltd.     based in The Hague, NETHERLANDS

Today bioremediation is successfully used as soil– and groundwater remediation technology. Many bioremediation systems, both in-situ as ex-situ techniques, usually result in considerable cost savings. Since the beginning of the 1980’s both in-situ and ex-situ bioremediation projects have been successfully completed worldwide through the use of preselected and adapted bacteria. QM Environmental Services supplies a range of microbial, bioactivator and nutrient products and gas delivery systems for the use in both aerobic and anaerobic bioremediation programs. Most common contaminants ranging from aliphatic hydrocarbons such as petroleum, lubrication oils, aromatic compounds like benzene and toluene to chlorinated solvents can be treated with these products.

Force Main Systems Sulfide Odor Control with Hydrogen Peroxide

by USP Technologies     based in Atlanta, GEORGIA (US) (USA)

Force main systems are typically high sulfide odor generators due to septicity conditions related to full pipe flow and a greater anaerobic slime layer (biofilm) thickness. Primary factors that influence sulfide loading generation in a force main include sewage temperature, BOD, retention time, pipe size and flow. Gaseous hydrogen sulfide (H2S) release at the force main discharge is usually the main concern related to odor and corrosion control needs; however, corrosion problems within the pipe can be of a concern (e.g. "crown cutting") at locations where air pockets can lead to concentrated H2S gas build up. Some basic considerations for assessing an appropriate sulfide odor treatment method for force main systems include: Retention time / duration of control Pump station type / cycling (e.g. vfd; start/stop, etc). Force main injection tap points, if any (e.g. air relief valves) Existence of intermediate re-lift stations or in series pump stations Manifold force main systems

Solutions for the food & beverages industry

by DMT Global Environmental Solutions BV     based in Joure (NL), NETHERLANDS

Food waste in general has a high energy density. This results in high yields when producing biogas through anaerobic treatment. Biogas is a very flexible energy product with proven capabilities in the power, transportation, and heat demanding sectors. In this sector, anaerobic digestion offers significant cost advantages over traditional disposal methods. By upgrading the biogas into natural gas using a DMT Environmental Technology system, a solid business case with an interesting return on investment is assured.

Flaring Solutions for the Biogas Industry - Siloxane Destruction

by ABUTEC LLC     based in Kennesaw, GEORGIA (US) (USA)

Biogases are emitted into the atmosphere through a variety of products. Often, these biogases contain siloxanes, non-toxic compounds that are frequently added to consumer products, such as detergents, shampoos, deodorants (to improve texture and feel), cosmetics, paper coatings and many textiles. While some siloxanes quickly volatilize into the atmosphere, others remain present and can be found in the biogas emitted from wastewater treatment facilities and anaerobic digesters.

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