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Pumps are typically either vacuum or centrifugal. Vacuum pumps, the most common system used by septage haulers, have the following advantages: Iiquid does not flow through the pump, which reduces wear; the pump is less likely to freeze; and the tank contents can be discharged under pressure. Vacuum pum

According to USFDA, a combination product is one composed of any combination of a drug and device; biological product and device; drug and biological product

ps should be equipped with a water trap to prevent dispersion of aerosols. Because liq-uid moves through the pump, centrifugal pumps are more likely to clog and wear more readily from grit and debris. Centrifugal pumps are typically open-impeller or recessed-impeller for handling solids. Both types of

; or drug, device, and biological product and fixed dose combination would include two or more combinations of drug.

Examples of combination products may in

centrifugal pumps have a maximum suction lift of about 27 ft (8 m). Some truck-mounted tanks are equipped with high-level automatic shutoff controls to prevent overfilling. Pump capacities are typically at least 400 gal/min (1,500 Umin). Hoses should be of high-vacuum black rubber or synthetic material

lude drug-coated devices, drugs packaged with delivery devices in medical kits, and drugs and devices packaged separately but intended to be used together.

, with a minimum diameter of 3 in. (8 cm). Hoses should also be capable of being drained and capped to minimize spillage. Haulers typically carry at least 100 ft (30 m) of hose. Discharge valves on the hauler trucks should be drip tight, and a discharge nipple should accommodate a quick-disconnect coup

here is enormous increase in the number of combination products entering the market in the recent years. Combination products have proven advantages but fixe

ling. Other equipment includes a device for breaking up the scum layer (e.g., a long-handled fork), shovel, soil probe for locating the septic tank, and other tools to either measure accumulations or perform other tasks in the field. A squeegee and suction wand attachments should be carried ‘“The Pumpe

d dose combinations are still in the process of convincing regulatory authority on their advantages over the single ingredient formulations.

Combination pro

,” a monthly publication aimed at the liquid waste hauler industry, produces an annual directory of equipment suppliers that is free with a subscription to “The Pumper.” to help clean up any spills. Lime should also be available to apply to areas where septage has been spilled.

Mobile septage dewateri

ucts have become life saving products for the pharmaceutical companies who doesn’t have many innovative molecules in their product pipeline and have been inc

ng systems, originally developed in Europe, are now available in the United States. Withthese systems, septage is pulled from the septic tank into one compartment on the truck; filtrate is returned to the septic tank. Polymer or lime is added to the septage during transfer to a dewatering tank, where s

easingly used in the product life cycle management. Even the companies having product patents are trying to extend their product life cycle through the combi

olids are concentrated. A sludge solids content of 15 to 20 percent is reportedly achievable for polymer and lime systems, respectively Mobile dewatering systems offer: Lower transportation costs due to fewer trips to the disposal site, greater truck capacity, lower volumes of material requiring furthe

nation products and maximize the revenues. But the companies involved in this practice are overlooking that they are burdening the patients both economically

r treatment and disposal. These advantages are best suited to areas with many septic tanks and long travel distances to the discharge site. Disadvantages include more complex operational requirements and high equipment investment costs.

After the septic tank has been located and the access hatches exp

and physically. They need to rightly judge the benefits of the combination products and they have to even look at the risks involved when combining the produ

osed, the inlet and outlet baffles or tees are examined for such problems as damage, loose connections, and plugging. Broken pipes or baffles should be replaced or repaired. If the liquid level in the tank is higher than the outlet pipe, this may indicate clogging in the outlet pipe or in the drainfiel

ts. Some of the combination products were well accepted by physicians while others suffered. Companies involved in development of combination products are fi

. Next, the scum mat is manually broken up to facilitate pumping. Before this is done, the liquid level in the septic tank first is lowered below the invert of the outlet, which prevents grease and scum from being washed into the drainfield. After the scum mat is broken up, the contents of the tank are

ding difficulty in defining their combination products and facing various challenges from selecting a combination to marketing it.

Following aspects would a

removed. Normally, the vacuum/suction hose draws air at a point where 1 to 2 in. (2.5 to 5 cm) of sludge remains over the tank bottom; this materialshould be left in the tank. Washing down the inside of the tank is unnecessary unless leakage is suspected and the inside must be inspected for cracks, If

dd to the challenges in developing combination products:

Which markets to tap where the combination products can do fairly well?
Which combination prod

internal inspection is warranted, fresh air should be continuously blown into the tank for at least 10 min.

Displace toxic gases or oxygen-deficient air. The interior can then be inspected from the surface with a flashlight. A septic tank should never be entered without first testing the air for oxyg

cts are meaningful and rational?
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin

en content, lower explosive limit, and hydrogen sulfide. This is accomplished using electronic “triple gas detectors,” available from suppliers of industrial safety equipment. Septic tanks are considered confined spaces and are subject to confined-space entry regulations published by the Occupational S

tions increase the patient compliance?
What would be the developing cost?
How to tackle the risks encountered during combination product developmen

afety and Health Administration (OSHA Standard 1910.146). Anyone entering a septic tank should wear a safety harness connected to an aboveground hoist. Two additional workers should be topside to assist the inspector in the event of problems. Your state or local agency responsible for occupational he

t?

As combination products don't fit into the traditional categories of drugs, medical devices, or biological products, the USFDA is in the process of devel

lth and safety should be contacted regarding any additional regulations regarding confined-space entry in their jurisdiction. In the event of a spill, septage should be immediately cleaned up. Hydrated lime should be sprinkled over the area of the spill, and a squeegee and a suction wand attached to th

ping new procedures for reviewing their safety, efficacy and quality.

Professional from academic institutions, pharmaceutical industries, health care indust

e end of the vacuum hose are useful tools for cleanup. For large spills, a second pumper truck may be necessary; companies with one truck should reach an agreement with another company to assist in emergency spill cleanup.

Addition of any chemical or biochemical agents to the septic tank, such as disi

y and representatives from various regulatory agencies are working out to design the regulatory requirements for manufacture and sale of combination products

nfectants, microorganisms, and enzymes, is discouraged. Such formulations offer little or no benefit and may even be detrimental to the operation of the septic tank and drainfield. For instance, agents that emulsify grease allow its discharge to the soil absorption system, where the emulsion may break

.

As there is an increasing trend of the combination products companies manufacturing such products should be able to tackle the problems involved in the de

at the soil infiltrative surface and cause increased rates of clogging or pass through the soil to ground water. Other agents are formulated of strong alkaline compounds that can pass through a tank and destroy soil structure. The most detrimental formulations contain chlorinated hydrocarbons, which

elopment. They need to be wiser in analyzing the market trends and the regulatory requirements.

Companies that provide selfless information through particip

can pass through the tank and soil to contaminate ground water. Fortunately, many commercial products do little to affect performance of either tanks or soil systems. Although no known benefits have been demonstrated to date, the possibility of an effective formulation in the future cannot be ruled out

tion in industry events and feedback to regulatory authorities would be able to face the challenges and will be successful in developing combination products

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The wrong focus can cause us to make bis mistakes as we run our businesses. This article helps us see the right things to pay attention to to help us grow our businesses profitably.

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