Pig Industry - Biodigestores nopals, animals and revaluation of waste - Management


Closed Discussion / Back to messages forums

19/12/2006

Engormix.com
Argentina

Biodigestores nopals, animals and revaluation of waste

I Belong to a company that designs and it builds plants of biogas to small scale. Some of the problems that we have detected as for the biogas reside that the plants are designed for treatment of waste and it doesn't stop energy production. The focuses for the design are different. According to our expriencia to obtain good conditions is necessary a matter prevails constant in composition, quality and quantity. if they require bigger antecedents with pleasure we can discuss him in this forum.

21/12/2006

Homobono Aguilar
Mexico

Engineer Wayland,
And why in their message it didn't share their knowledge with the net, as they make it all those that want to make it. Undoubtedly all the concerning one to the energy conservation interests us to who integrate it. If you want to dose it y/o to enrich with them, perhaps it mistook the net.

Homobono Aguilar Saldaña

21/12/2006

jose antonio andrino mazariegos
Guatemala

For what we beg him he/she makes us participant of their knowledge of the topic, to be able to valorize the same ones and to apply them or to develop them according to our necessities. Ruégole because, and I believe to speak for all the users of this technology that it nurtures us with their knowledge. Thanking their attention ahead of time to the present, and trusting GOD that we can receive their contribution to this so discussed topic, is of you, very sincerely.

José Antonio Andrino

21/12/2006

Luca Serrati
Paraguay

I Believe better to consult to the Engineer Wayland it has more than enough specific points in the topic, since being a very wide topic, it is difficult to embrace everything in a writing without falling in imprecisiones. Without mentioning the prepotente and not very practical that is accusing somebody of mercantilist (when he/she is bringing a topic of great interest to this forum), without having the most minimum test in it.
Engineer Wayland, my consultation is the following one: if you build plants that finally have the energy generation, of what size and volumes these are? Plant size as for volumes of treated waste, and generating capacity of energy.
From already thank you.

Luca Serrati Pilfers
Asunción - Paraguay

21/12/2006

Luis Arriagada
Chile

I am carrying out a Schoolmaster in Environmental Administration, and my thesis topic is related with the production of biogas to make sustainable treatment systems for intensive cattle exploitations, for what your comments on the biodigestores design interested me sobremanera. If you can send more information, I will thank it to you a lot.

21/12/2006

Pablo Infants Chávez
Peru

Dear Engineer Wayland: one always goes learning along their life. My question is: the biodigestores that treat the organic waste, what they take place? And in what do they differ of those that produce biogas? Up to now he/she knew that the biodigestores processes the organic waste, they generate biogas and biol that he/she goes to the cultivation fields. Many of the users give bigger importance to one of the topics, others prefer the three topics: to take care of the medioambiente, to produce energy and also the afluyente of the digestor.

The current tendency in the biodigestores construction is to make it every bigger day to obtain bigger quantity of energy, to work them in the mesophilia and termophilia so that the process is quicker. At the present time compact biodigestores is building, one external and the other intern. The external one works in mesophilia, and the intern in termophilia.
I will have a lot of pleasure to exchange experiences with you

Pablo Infants
Lima / Peru

21/12/2006

Rodrigo Wayland
Chile

Dear users: I thank their critics and consultations. The focus that we have is different. From my point of view, each waste is different, the matter prevails it is different. Although a diversity of reactors, the process exists it requires a detailed analysis. I explain to it this way: a reactor is a fermentador, similar to produce yogurt. At the moment, the processes of generation of biogas use any type of milk and ingredients, what there is available (pig guanos, bovine, etc), and they obtain a product acceptable called biogas. What I propose is to select the matter he/she prevails to obtain a product of good quality. The focus changes. We have achieved excellent results this way.
As for the knowledge, to select a reactor they should not only be considered the typical characteristics as for size and reactor type. Viscosity also mixes, density, pollutants, nutritional composition, balance Nitrógeno/Carbono, matter transport prevails, efluente disposition, heating, etc. is many the factors that affect the process. A reactor is an alive being that is born, it grows, it is developed and he/she dies. An unique recipe doesn't exist for a good work, and case should be evaluated to case.
On the other hand, the knowledge have a value. And although my participation in this forum carries out it with a lot of pleasure, I am sure that any sensible person understands that you/he/she cannot surrender knowledge in gratuitous form, my company doesn't carry out charity. Also, a development exists in technology and patents in course.

21/12/2006

Rodrigo Wayland
Chile

Sr Luca Serrati responding to its consultations

of what size and volumes these are?
The minimum viable size is using rectors of 100 m3, for the generation of about 1000m3 daily biogas, smaller sizes are very complicated to climb the teams compressors and used bomb.

Plant size as for volumes of treated waste, and generating capacity of energy.
The esechos volume depends d ea densida of the mateia it prevails, as a rule one works in terms of dry base, a reactor of 100 m3 processes some 1 rhyme it bases dry a day.
As for bovine lso and pig is quite well-known the quantity of biogas and energy that generate, in the case of tuna yokels the generation is of 350 m3 biogas / day, 7000 kcal / m3, is important that its its dieño considers the gua recupercion and nutritious after the digestion since can use it as fertilizer.

21/12/2006

Juan Carlos Rooms
Peru

Ing Wayland:

It is necessary to recognize the guessed right comment from the Engineer Aguilar when mentioning the search of enriching with their participation. To the being this way, I suggest him that it indicates the diverse biodigestores alternatives that you develop, investment costs, and how much they take place of biogás and payment for the agriculture that you/they would be the 2 sources of re-payment of the investment, and to indicate in what term he/she recovers.
Sincerely,

Juan Carlos Rooms

21/12/2006

Rodrigo Wayland
Chile

Sr Pablo Infant, responding to their consultations:

The biodigestores that treat the organic waste, what they take place?
The bacterias are alive beings, you tell me what you eat and I will tell you what you excrete! In general terms, it will depend on the digestibilidad of the material with which you/they feed the bacterias, while more complex they are chemically, minor is his prosecution. Ej: lignina, cellulose, etc. The case of animal waste, they generate sour sulfhídrico, and the vegetables don't make it (usually).

And in what do they differ of those that produce biogas?
A system designed to produce biogas requires control of the feeding and matters cousins. One designed for treatment of waste, processes what arrives.

It is correct that at the moment bigger reactors are used, not only for scale economy, but also for the times of more retention.

The use of temperatures termófilas or mesófilas, depend on the time of retention, it loads mainly of the reactor, and the control of the temperature. The temperature mesófila can only vary about 5 -10 degrees without problems, but the termofila a couple of degrees.

Although the use of two reactors is an alternative in processes of long times of retention, my recommendation is to use a reactor in times of retention of 15 days or less.

21/12/2006

Rodrigo Wayland
Chile

Sr Rooms, responding to its consultations:

If you want a technician-economic study of feasibility, it can channel it through my company.
It is necessary to separate what is personal and the professional thing. If you have a medical friend, he/she can ask him what it can use for the cold, but if he/she wants an exam he/she should pay the consultation.

21/12/2006

Rodrigo Wayland
Chile

Sr José Antonio,
Indicate me which their consultations are, and I will respond them in the measure of my possibilities.
Greetings.

21/12/2006

ARTURO GONZALEZ
Mexico

What level of danger do they have the biodigestores regarding the control of the emanated gas?

21/12/2006

Andros Bracamontes Reinschlüssel
Mexico

Engineer Wayland:
I understand their labor position perfectly the same as I thank the knowledge that he/she wants to contribute to the forum. My consultation is quite specific, if it is he possible to please lean on, it indicates me of what way he/she would make it:
Among other activities, I am developing a system with biodigestores of low cost for the treatment of meads of coffee, same that has as main objective the treatment of waste water to prevent contamination of aquifer, that which is an achieved goal. However, we have identified the interest of producers to use the biogas, and it is there where have some problems.
The meads have high levels of DBO, SST and quite low pH (3.0-3.5), all this depends of if the benefits of coffee have recirculation systems or not, that which makes the waste water with more or smaller concentration. Our objective is to use the smallest quantity in possible water to achieve smaller treatment systems.
At the moment we have a system in which have installed 3 parallel biodigestores interconnected with capacity of 688 cubic meters of mead, we have a good system of descontaminación of meads. However at the moment, the water honey has not allowed us an efficient production of biogas.
Until the moment we are considering the use of EM (Efficient Microorganisms), and later on of Lime in a process of predigestion of the mead to improve their condition before entering to the biodigestor, we don't still consider the point of the temperature.
I consider that its focus of maintaining the quality of the matter prevails under good conditions for the production of biogas, finally he/she should have good repercussions in the treatment of the waste. I would like a lot to listen their opinion in this respect of our matter conditions it prevails for the efficient production of biogas.
Greetings.

21/12/2006

Rodrigo Wayland
Chile

Sr Gonzalez, responding to their consultation:

The digestores doesn't have a high pressure, we are speaking of 30-50 cm column of water, the pressure is very small. The methane is explosive when mixing it with air, but it is not more dangerous than the gasoline, the advantage of the methane, is that a flight vanishes quickly since it is lighter than the air. The disadvantages are that it is colorless, toxic, and in the case of vegetable residuals it is odorless, I didn't seize in residuals of animals, since it is generated together with the sour Sulfhídrico and it is detected easily.
I don't know of any case in that a digestor has exploded.
The biggest danger could have it if he/she works with not qualified personnel or qualified.

21/12/2006

Rodrigo Wayland
Chile

Andros Bracamontes Reinschlüssel, responding to its consultation:

Apparently, the problem resides in the water honey, maybe its chemical composition is too complex, or he/she can have natural inhibitors. If the DBO (it demands oxygen biochemistry) it is high, it indicates activity of aerobic bacterias, maybe their sustrato is more appropriate an aerobic treatment in aireación pools.
Although the organic matter is possible to process it in reactors, it doesn't mean it that it is quick. As I have indicated previously, each matter prevails he/she has its own characteristics, each case should be studied in particular, and not to use systems standard a priori. They don't exist patient of standard appendicitis, neither bacterias.

In systems anaeróbicos two easily controllable critical factors, temperature and pH exist. The temperature mesófila is in 30 -35 °C, and the pH with less than 6.0 the bacterias metnógenas don't work (advisable 6.8-7.0).

With regard to the water: with little quantity they accumulate toxic waste for the bacterias, and it begins to decline their production. With an excessive flow the laundry of the reactor takes place, and the bacterias get lost for the efluente. It is difficult for me to define this without having detailed information, it also requires an exam in land and empiric adjustment to reactor régime.

As for the Bacterias: he/she can reinocular with some tons of pig guano or I vaccinate, the EM would be very expensive, and liofilizados is generally sold, instead of the bacterias fresquitas in the dungs. If he/she will make yogurt it would recommend him to use this type of bacterias.

Greetings.

21/12/2006

Moral Giovanni
Venezuela

Engineer Wayland,
I am very of agreement with the Engineer Homobono Aguilar, these forums are to exchange knowledge and experience, without ends of lucre, if you what waits is to enrich with their knowledge, put a commercial warning, and don't enter in these forums that are to share and to help us each other WITHOUT ENDS OF LUCRE.

21/12/2006

Alirioangarita
Colombia

How I design an economic and efficient biodigestor for my property, since I am a callow person, but it interests me enough east topic, and I want to prove with the pigs. I thank the information that you/they can contribute me with pictures and outlines y/o detailed text.
Attn:

Alirio Angarita
(Santander Colombia)
Thank you.

21/12/2006

guillermo coria cortez
Peru

Engineer Wayland,
I am very of agreement with the Engineer Homobono Aguilar and with Mr. Moral Giovanni with regard to their opinions, I believe that these forums are to exchange ideas and opinions with the purpose of that we can learn some of other that are without desire of lucre, I believe that other means exist in which you/they can be contacted with ends of lucre.

22/12/2006

Rodrigo Wayland
Chile

Dear Sres,
Apparently, some people of this forum estimate that the knowledge and the information don't have a value. Regrettably, my company doesn't CARRY OUT CHARITY. Maybe some people have ends humanitarians and they can give their resources in limitless form, that which is respectable.

Dear users, I am sure they will be able to find information in gratuitous internet on this and other topics. If my knowledge in these revaluation topics or treatment of waste are not of interest, they don't READ THEM.

Some people of this forum are carrying out consultations and repondido is had appropriately, insofar as possible.

I request them if they carry out a critic, be to the process, design, etc., from the technical point of view that is a contribution.

22/12/2006

Rodrigo Wayland
Chile

Sr Alirio Angarita, responding to their consultation:

For the design of reactors, they are necessary some parameters. How many pigs? Maximum environmental temperature, stockings and minimum. Material diponibles (I steel, concrete, bricks, plastic, acrylic, etc), electricity, readiness of water, etc.

Closed Discussion	1 - 2 - 3 Next
ENGORGFOR POR-124 20081202

Products and Companies
Purchase and Sale of Livestock (Pigs) Veterinary Instrumental and Equipment By-Products Health Software Nutrition Environmental Control Genetics - Reproduction Installations - Equipment See all...