DE1667799C3 - Process for the production of a soil improver from lignite - Google Patents

Description

For this purpose 2 sheets of drawings

Claims (2)

1 2 of the lignite humic acids can be useful. One claims: can also add various mineral salts. To loosen up the somewhat firm structure of the brown 1. In a process for the production of a charcoal it may be useful to add loose improvers made from brown coal, thus adding 5 materials such as peat,
characterized in that one of the brown coal _R. . . small amounts of bacterially degradable material fen mixed. Pot tests were carried out with spring wheat as 2. The method according to claim 1, characterized in that the experimental fruit is poured into two different strengths draws that alkalis are also mixed in. io test series scheduled. On the one hand it was by pouring the test samples (sandy soil) to 60% water capacity, a drier climate (Row A) and on the other hand by pouring on 70% water capacity and, in addition, after running the cereal grains once a week during the growing season on 120% of the The possibility of using lignite as water capacity in a humid climate (series B) simu soil improvers is liert from different sides. The amount of soil improver, which has been investigated, and according to the popular opinion drawn on dry matter, was in all experiments with it, in contrast to peat, no improvement of the 20 subdivisions, except for the experiments with lower brown soil fertility, although from the coal rate and with sewage sludge alone, same. From the structure of the lignite humic acids, a soil-improving effect was to be expected in all cases with 1.2 g N, 1.2 g P ₂ O _{5 and 2 g.} K ₂ O fertilized per pot. As a soil improver It has now been found that by adding a few were tested: The percentage of bacterially degradable substances for brown water coal a soil improver is obtained, _Rhein i _cal brown coal (RBK) ... with 58.6% that - similar to peat - the achievement of higher harvest garden peat with 74 8 ° / endure enables. Accordingly, the invention relates to α-cellulosic waste material a process for the production of a soil improver (Fanestoff) with 7 6% means of lignite, characterized 30 separating sludge from sugar that small amounts of bacterial f abriken the lignite with 27 8 V mixed with degradable substances. Examples of such sawdust (spruce) with 164% Substances are α-cellulose-containing waste products from Zeil- _hä * _s , _{waste water on} dry matter ASU "? ' ^so f ^na v ^nte , ^{r Fa} "8 ^stoff '™ ck« containing punch calculated (sewage sludge) with 94.0% Waste products from the sugar industry, such as vaginal 35 sludge, domestic sewage, e.g. B. sewage sludge. The result of row A shows Fig. 1 that the In general, additions of up to about 15% are sufficient for row B Fig. 2. To obtain a soil improver, which results in peat according to Fig. 1 compared to the experiment usually added peat in its effectiveness without the addition of a soil improver, is equivalent, often even superior. This gives the yield increase of around 5%, while lignite gives the opportunity to significantly replace peat with a cheap product or sewage sludge, each added on its own, which in sufficient quantities has a detrimental effect on peat. The combination according to the invention is present, while the economically degradable combination results in all cases in an improvement in peat deposits in a relatively short time compared to the addition of a gate.
will be exhausted. 45 Fig. 2 shows practically similar results. Here the mixing of the lignite with the additives caused peat additive an increase in yield of about can be done in any way, eg. B. in hammer 15%, lignite only such of about 4%. Mill or in jaw crushers. As a result, excessive heating of the product should be avoided when the combination according to the invention is added. nation roughly corresponds to the effectiveness of peat. Under certain circumstances, an addition of alkalis, for. B. 50 Only when sawdust was added was there a slight increase in the amount of lime, ammonia or potash for neutralization.