Thanks for the suggestions, i will look into this option and get back to the forum, it  sounds interesting.

Best wishes.

Dear Members:

Worms/ fly species are most ideal to use, for bio digestion of these type of sludges.
It is also apt  to ensure that initially bio digestion of raw sludges are done, and then worms / flies are led in the beds, as secondary process.
Best to have the sludge partly  ie 50 to 60% digested. 
Very similar to offering cooked food to worms/ flies, and not raw food matter.

If these practices are followed,  it would be the best to follow and processes  sustained well. 

Well wishes for better project - prospects.. 

Ajit Seshadri. 
The Vigyan Vijay Foundation, Ngo, New Delhi .

Bio compositing using Black soldier fly would works efficiently on the waste in properly management

Dear SuSana Members:

Our Fellow members in Cameroon - Atabong , Masango others have indicated their keen ness to establish An appropriate SLW Management practices, well complying and sustainable in the prevailent conditions at a Developing region.

A pilot trials may be initiated to convert both waste water and solid wastes into resources, leaving very minimal remains that need to be safely disposed off from site.

The technology employed needs to be basic and elementary, that which can be dealt with village farmer-plumber. eg septic tanks, filters Etc.. Dewats type. with no mechanisation, fail- safe methods and provision for added redudancy in working devices and system.

Both Solid and Liquid waste mngmnt. ought to be a revenue generating, so that costs and op-expenses are duly met and plants sustained in its own merit.

Our Members may be aware of the above indicated features, but it is indicated such that more can be slotted in as per site conditions Etc.

The SLWM plant needs to be well laid out with adequate aesthetics, greened with florals, pleasant for sight.

Notings are issued for community good and benefits on achieving SDGs

Well wishes for a Great year in 2020.

Prof. Ajit Seshadri. I N D I A .

Dear Atabong, I think that is a huge problem with pollution you are trying to tackle there and I really want to commend your effort. I just want to say as you look for a solution on best filtration options, you should pay much attention to sustainability of the initiative too. Here, I am mostly looking at affordability of the end product relative to market situation of compost in Cameroon in relation to running cost. I do not know how competitive the market is, but its a very important factor.

As you rightly point out Dean, I am trying to start an experimental phase at the laboratory experimental site with the results obtained from my Ph.D. I will turn to funders and the stakeholders with my results in order to get funded for implementation since everyone sees the impact of this wastewater on the environment and health.

Thanks for the info

Thanks, Joe, will go through it and surely contact them.

Just as a side note, since I recently shortly looked into a similar topic: if the slaughtherhouse is processing ruminants (cows, sheep etc.) any resulting use, even including food crops grown on land with processed compost / irrigation, will be restricted for import into EU countries as far as I can tell.

Might be relevant or not in this case, and being a left over of the BSE crisis this restriction is being slowly relaxed...

Of course blood is very nutrient rich, especially N and would be a very good fertiliser for irrigating to crops. Noting that pathogens break down in soil very rapidly, why is the slaughterhouse effluent discharged to water instead of irrigated to land? What is the land use and soil types/climate of the land surrounding the slaughterhouses and what are the crops grown there? Its pretty bad discharging this to waterways, the nitrogen content alone will cause serious issues, let alone the oxygen demand it will generate.
Vermifiltration will treat the effluent and remove pathogens and oxygen demand. It will not (and should not) remove nitrogen, so if the intention is to continue to discharge to waterways then treatment should include denitrification (anaerobic) step. If the intention is to utilise the resource for irrigating crops (the only sensible option) then vermifiltration is the lowest cost option.
16 cubes of effluent a day is not much at all, I'd estimate a media capacity of 20 cubic metres is required for a second-generation reactor, which would only cost about US $10,000. Add solar panels, lithium phosphate battery and recirculation pump $4000 you'd have a pretty special laboratory for a phD. What I'm interested in is whether there is a market for nutrient-rich pathogen-free irrigation water... and whether any of the agencies supposedly responsible for improving sanitation will fund you.

I have found the attached study which might be relevant from Kenya. Maybe you could contact the authors for some direct advice?

That sounds like a lot to me. I would think a reed bed would be the lowest cost effective option, but I do not know specifics. I have seen quite a large one in operation but do not know if it could work with that volume of blood.