Two-stage anaerobic digestion: State of technology and perspective roles in future energy systems.

Two-stage anaerobic digestion (TSAD) systems have been studied on a laboratory scale for about 50 years. However, they have not yet reached industrial scale despite their potential for future energy systems. This review provides an analysis of the TSAD technology, including the influence of process parameters on biomass conversion rates.

[Emotional experience and change in psychodynamic inpatient psychotherapy].

The subject of the present study is the recording of emotional experience and its change through inpatient psychodynamic psychotherapy, taking into account the factors of age, gender, and traumatic experiences in childhood and adolescence. The following standardized instruments were used on the clinical sample of 971 patients (413 inpatient, 558 day clinic patients) at the beginning and at the end of the treatment: Questionnaire for the Assessment of Emotional Experience and Emotion Regulation (EER), Childhood-Trauma-Questionnaire (CTQ), Inventory of Interpersonal Problems (IIP), Helping Alliance Questionnaire (HAQ), Symptom-Check-List (SCL-90-R). The mean duration of treatment was 66.

Influence of anaerobic digestion on the labile phosphorus in pig, chicken, and dairy manure.

Phosphorus (P) loss from livestock and poultry industry causes serious threat to agro-ecological environments. Anaerobic digestion (AD), through recycling of P-containing resources and biogas production, prevails as a promising solution to the resource, energy, and environment trilemma. In this study, the dynamic transformation of P in batch AD processes fed with chicken, pig and dairy manures was investigated.

[From body to mind: the psychoanalytic approach to patients with chronic pain].

Psychosomatic Medicine in Germany is a very sophisticated and elaborated disciplin in the health care system. The system of psychosomatic care in Germany is organized from the basic care of the general practitioner to the integrated multimodal psychosomatic inpatient treatment. This development is due to a big growth of psychosomatic need of treatment in the society.

Integration of membrane filtration in two-stage anaerobic digestion system: Specific methane yield potentials of hydrolysate and permeate.

Two-stage biogas systems consisting of a CSTR-acidification reactor (AR) and an anaerobic filter (AF) were frequently described for microbial conversion of food and agricultural wastes to biogas. The aim of this study is to investigate the integration of a membrane filtration step in two-stage systems to remove inert particles from hydrolysate produced in AR in order to increase the efficiency of the subsequent AF. Hydrolysates from vegetable waste (VW) and grass/maize silage (G/M) were treated in cross-flow ceramic membrane filtration system (pore size 0.