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Fruits Waste Grinding/Pulverizing

Fruits Waste Grinding/Pulverizing

Fruits Waste Grinding/Pulverizing

thread161-281892: Wastewater Valve Clogging
With reference to processing of solids fruits wasate (apple, peach, cherry etc. with pits) can someone provide input on equipment that can grind/pulverize the referenced fruits into particles less than 3 mm?
llamallama can you provide some input?

RE: Fruits Waste Grinding/Pulverizing

Not sure why you want to do this, but Franklin Miller can probably make you a grinder for this.


Most of the comminutors on the market do no grind to that small of particle size.

RE: Fruits Waste Grinding/Pulverizing

need particle size less than 3mm. franklin miller, moyno, jwce says they cannot guarantee 3mm.

RE: Fruits Waste Grinding/Pulverizing

What I was referring to was a custom made unit, not the standard design unit. I believe Franklin Miller makes equipment for other industries than wastewater.


I doubt that there is any wastewater equipment that will do this as there is no wastewater market for this type of equipment. It will be expensive, have low throughput, and have high operating costs. All undesirable features in wastewater equipment.

There is industrial equipment available to accomplish this:


RE: Fruits Waste Grinding/Pulverizing

I spoke w/ Franklin Miller. They said they can't meet. The requirement is for downstream MBR. I am wondering if a hammer mill with screen works.

RE: Fruits Waste Grinding/Pulverizing

For an MBR, I would go with screening and forget the comminutor. I have seen where ground up material tends to reclump again in wastewater treatment plants. It is easier to remove large particles than small particles. Huber has a mesh size down as small as 10 μm. The ROTAMAT Fine Screen is 6 mm which is probably adequate.

RE: Fruits Waste Grinding/Pulverizing

This is for solids fruits. Water will be added to make it flowable and pumpable by a PC pump, but it will not be like flow like wastewater passing through drum screen.

RE: Fruits Waste Grinding/Pulverizing

Enter "muffin monster shredder" into google or bing -

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)

RE: Fruits Waste Grinding/Pulverizing

Not sure why you want to add water to dilute. Why not use a screw conveyor to move the solids. You can use a dewatering press to dewater?

RE: Fruits Waste Grinding/Pulverizing

For what do you need <3mm? Clogging?
We are talking about solid wastes, or a slurry, or wastewater with solid contaminants?

You could look at the Hoelschertec Gorator.
Maybe a macerator could work, too.

RE: Fruits Waste Grinding/Pulverizing

You said this is for a membrane reactor, I think. JWC has a 3 mm screen and a washer assembly that includes a grinder prior to the washer. I just started one last week and it works very very well on Domestic Sewage. The existing, NOT JWC, removes a tremendous amount of fecal material. (We actually refer to it producing a Dyno Turd) The JWC grinder/washer assembly works very well and removes all the visual fecal material and washes that stuff back the waste stream. The problem with fruit solids might be that the fruit pulp is firmly attached to the seeds ? and the seeds might not wash as well as domestic solids. OR, does the seed material represent BOD/COD and need to be treated?

RE: Fruits Waste Grinding/Pulverizing

Why not dewater and sell as animal feed?

RE: Fruits Waste Grinding/Pulverizing

The purpose of reusing fruits waste is power generation.

RE: Fruits Waste Grinding/Pulverizing

Here is another outlet for the pits. A number of companies are planning to replace microbeads in soap products with natural substances such as ground-up fruit pits.

RE: Fruits Waste Grinding/Pulverizing

They did that with peach pits years ago. It was used a major facial scrub.

Richard A. Cornelius, P.E.

RE: Fruits Waste Grinding/Pulverizing

I grind plastics.The grinder consists of three rotating blades and four stationary side blades with a mesh at the bottom to determine which size drops out.Would such an arrangement help?

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