I am a member of a team working on the NoBi (Bidirectional Nodes) program sponsored by Conacyt (National Council of Science and Technology) Mexico and by the NSF (National Science Foundation).
Our team is aiming to determine the needs and requirements regarding the treatment of wastewater with high organic load, generated in the production centers of food, meat, poultry, etc.
How can we know which treatment solution exactly to apply? How does the treatment change as the organic load changes?
There is no "one fits all" kind of solution when wastewater is the topic. However depending on biological means will always be a problem when sensible variations are in the mix. Today using non-biological technics and deactivating the overactive nature of organic loads is the key to success and sensibly easier to control when variations occur. Detailed analysis is needed but once proper design is in place any flow capacity can be treated with desired results. If you are interested in the hows and the whens let me know and we can discuss specifics.
The most effective and most cost effective method to treat used water from industrial operations is at the production area. By this I mean that it is best to minimise the organic loads being lost to drain and to minimise the volume of water used in the production area.
Then when the waste loads have been minimised the required treatment process can be designed. In the meat processing industry a good blood collection process is essential to minimise organic loads. In chicken processing dry processing of offal, rather than wet transport / pumping, etc., can greatly reduce organic loads.
Processing of value added products in meat plants, (such as gut recovery, hock recovery, etc can lead to very high water usage and in some cases very high losses of protein based materials, suspended solids, fats, etc).
It is therefore critical that the process commence with a critical review of the production areas to ensure that the efficiencies in the process are optimised.
Typically a beef or cow unit would be expected to use 1 m3 water and to generate 3.5 kg BOD per head to process, .... check how your facility compares to this "typical" target value.
Hi Serigo , when you say high organic loading , can you please let us know what is the number in terms of COD or BOD in ppm of the inlet effluent? you can provide us with more details if its a running plant. You can email on tejas@organicabiotech.com
There isn´t one answer to your problem. Each situation gives you the answer.
You must know the daily flow, the discharge limits and a complete analysis of the wastewater. With this dates, you must estimate different solutions and calculate de CAPEX and OPEX and make a decision.
The best way to assess the correct treatment process you have to collect the grab samples of raw effluent at least 3 times a day and analyze them one in early morning around 8:00 am, 2nd in afternoon and last in the evening. this will help you to get an idea about the peak value of organic content. Please don't depend on composite sample analysis because this analysis will give you just an average value and this analysis to not at all helpful to design a system.
Major Parameters COD, TSS, O/G, dissolved sulfide, NO3, NH4, Total N & Total P. If possible please do BOD also but it takes long to get the results. With COD its possible to assess.
Once you have done this please share the results with me I may help you because I have treated high COD effluent ranging from 4,000 to 6,000 mg/L value in the factories which you have mentioned.
"If you cannot measure it, you cannot improve it". First you have to conduct analysis in order to evaluate the key parameters that will indicate the best choice of treatment for you. You need to evaluate at lest parameters such as COD, BOD, Total Nitrogen, TOC. You better do so for different periods in order to evaluate the variability. This is the first step.
Hello you have two approaches: the splitter solution currently on the market or the solution of biological treatment. These two solutions are diametrically opposed and not nothing to do to the other. everything will depend on the basic conditions.
-Is that it is the community that will bring together all domestic wastewater and add wastewater producers of large mass of organic matter
-Is - what are the producers of this organic mass that will purify their wastewater
Then if this is the solution of biological treatment we can offer alternatives.
From the point of view of collective sanitation by the divisive principle, there is no real solution since the mass of organic matter will be a major disadvantage: blockage as soon as production is very important.
In the concept of a variable mass production of organic matter, biological purification takes totally.
Only just predict a water treatment site that will be adapted to the obviously most important production
From the point of view of the purification solution organic it is simpler, cheaper, more efficient.
But it's a different approach and it requires membership of the producers to the concept of biological treatment. Can they join the concept?
Excellent question Sergio: The goal of treating any waste, whole, grey water, or black water, is to return it to nature in its elemental/nutritional form. (foot print of Zero). Adding any kind of chemical or expensive infrastructure automatically negate their co habitat status with nature. (imagine you are in a generational space craft to another star system). Reuse everything insitu. The technology is available here and now. I am very amused at all of the 1950's technology being suggested. All you really need is the correct microbe from nature to do the job and follow basic parameters in the microbial bioremediation world.
The question is so open ended. If you come up with specific industry even in foods, there are many type of industry discharging different pollution loads. Confectionery, Can Foods, Syrups etc. Poultry and Meat has different Discharge Loads.
The high pollution load say BOD 2000+ and COD 6000+ normally good to be treated by the Scheme
Scheme 1: Anaerobic Digestor (Reactor)----->Chemical Treatment (may or may not)---->Aerobic Treatment----->Post Filtration (Depends upon output requirement)
I agree, The rule of thumb cut off value is 2000 BOD which i use. Less than 2000, use aerobic systems like activated sludge of fixed film technologies. Greater than 2000 is a candidate for anaerobic treatment. There are many anaerobic alternatives including low rate and high rate like USAB and MFT. To reuse water follow activated sludge treatment call secondary effluent by with a multi-media or micro filtration the RO. Anaerobic may need an activated sludge and then membrane and RO. Post secondary depends upon water quality needed.
La quantité de la masse de matière organique qui entre sur une STEP ressort automatiquement sous la forme de résidus boueux. S'il y avait de la digestion anaérobie , de l'abattement par le chimique, il n'y aurait pas besoin de la filtration.
S'il y avait du traitement anaérobiec dans le réacteur puis du traitement aérobie avec un abattement réel d'épuration il n'y aurait pas besoin de la filtration.
S'il y avait un traitement chimique puis ensuite une traitement aérobic avec un abattement réel d'épuration il n'y aurait pas besoin de la filtration.
Ensuite comme expliquer qu'un effluent aérobic puisse subir un traitement anaérobic? par quel miracle? quelle est la méthode? quels sont les résultats de performance?
Ensuite comment peut-on expliquer que derrière un traitement chimique on puisse faire un traitemetn aérobic?PAr quel miracle ?
En quoi peut bien consister le traitement aérobic? quel est l'outil ?
Hello
The quantity of the mass of organic matter that enters a STEP is automatically in the form of muddy residue. If there is anaerobic digestion of the abatement by the chemical there would not need filtration.
If there is the processing of anaerobiec in the reactor then the aerobic treatment with a reduction of treatment he would not need filtration.
If there was a chemical treatment and then an aerobics with a real reduction treatment sewage there would not need filtration.
Then as we explain that an aerobic effluent can undergo anaerobic treatment? What miracle? What is the method? What are the performance results?
Then how can we explain that behind a chemical treatment we can do an aerobic traitemetn? What miracle?
In what may well be the aerobic treatment? What is tool?
Mainly high COD ,BOD &TDS in waste water MEE technology is better ,By this advance technology we can get these parameter easily.Other process like MBBR &FBBR technology we can not get our desired output fully.